# A block weighing 70.7 N rests on a plane inclined at 21.6° to the horizontal. The coefficient of the static and kinetic frictions are 0.23 and 0.12 respectively. What is the minimum magnitude of the force F, parallel to the

22,562 questions, page 124-
## calculus

Find the value of x where Y= 5^2x * e^(3x^2) has a horizontal tangent. Is this point a Max, Min or plateau?

*asked by Anonymous on April 20, 2010* -
## Math-asymptotes

hi! so I have a rational equation : y = -3/x+1 and i'm wondering how you find the horizontal and vertical asymptotes.

*asked by Amma on February 16, 2016* -
## Physics

An arrow is shot from a bow at 42 m/s at 70 degrees what is the horizontal and vertical components

*asked by Ally on December 5, 2010* -
## Calculus

Find the positive value of x where fx=x3+2x1/3 has a horizontal tangent line. Answer =

*asked by TG on February 10, 2012* -
## Precalculus

Explain why there does not exist a point on the horizontal axis whose distance from (5,4) equals 3. HELP!!

*asked by jh on March 10, 2010* -
## algebra

determine the domain, range and horizontal asymptote Please show all your work f(x) = - (3/4)^x - 1 Help!

*asked by amy on December 17, 2011* -
## Calculus

Find al points where tangent lines to: (x^2+y^2)^(3/2) = sqrt(x^2+y^2) + x is either horizontal or vertical.

*asked by Al on October 26, 2014* -
## physics

what are the two things that determined the path of an object launched at an angle to the horizontal.

*asked by flay on January 2, 2013* -
## physiC

A uniform door (0.81 m wide and 2.1 m high) weighs 150 N and is hung on two hinges that fasten the long left side of the door to a vertical wall. The hinges are 1.9 m apart. Assume that the lower hinge bears all the weight of the door. Determine the

*asked by lina on March 1, 2011* -
## Physics

A wooden block is moving on a rough level surface. It originally has 25J of kinetic energy. If the friction force acting on it is a constant 1N how far will it slide before comming to a stop? KE=F_f 1/2mv^2=F_n (meu) but the problem i run into is that meu

*asked by Andrea on October 16, 2007* -
## english

does this sound write and look grammatically correct? Please and thank you Odysseus the Curious took us inside a cave to eat. After we ate some cheeses the ugly Cyclops came along with his flock of sheep and rams. He put a gigantic boulder to block the

*asked by Kim on December 9, 2012* -
## PHYSICS PLEASE HELP !!!!!

Two objects are placed on a frictionless incline which is inclined at 65.5 degrees. A mass of m1 = 7 kg is tied to a wall, which is at the top of the incline, by rope 1 which is parallel to the incline. A mass of m2 = 13 kg is tied to m1 by rope 2 which is

*asked by Kaleigh on October 21, 2011* -
## physics

A boat floating in fresh water displaces water weighing 35.6 kN. (a) What is the weight of the water this boat displaces when floating in salt water of density 1.10 x 10^3 kg/m^3? (b) What is the difference between the volume of fresh water displaced and

*asked by Meghan on November 14, 2010* -
## english

Which words/phrase in this sentence is misplaced? Having been discovered, Rover looked up at his owner with puppy-dog eyes. a. with puppy-dog eyes b. been discovered c. his owner d. rover looked up I am torn between (a.) and (c.). Since the answer (c.)

*asked by Karen on January 28, 2011* -
## Physics

A railroad gun of mass M = 3.0 kg fires a shell of mass m=1.0 kg at an angle of θ= 45.0 ∘ with respect to the horizontal as measured relative to the gun. After the firing is complete, the final speed of the projectile relative to the gun (muzzle

*asked by Anonymous on October 25, 2013* -
## Physics Classical Mechanics

A railroad gun of mass M = 2.0 kg fires a shell of mass m=1.0 kg at an angle of θ= 40.0 ∘ with respect to the horizontal as measured relative to the gun. After the firing is complete, the final speed of the projectile relative to the gun (muzzle

*asked by Anonymous on October 28, 2013* -
## Physics

A railroad gun of mass M = 3.0 kg fires a shell of mass m=1.0 kg at an angle of θ= 45.0 ∘ with respect to the horizontal as measured relative to the gun. After the firing is complete, the final speed of the projectile relative to the gun (muzzle

*asked by Anonymous on October 25, 2013* -
## Cartesian Equation

Determine the Cartesian equation of each of the following planes: b) through the points (3,0,1) and (o,1,-1), and perpendicular to the plane with equation x-y-z+1=0 My teacher told me to find a direction vector, cross that with the normal, and set up my

*asked by Lily on March 29, 2016* -
## Calculus

Consider the lamina ( with uniform density .01m) having the shape of the region Q in the xy-plane: 1≤x^2+y^2≤4. The density at each point P varies directly with the distance from P to the origin, with density at the point P(2,0,0) being 10kg/m3.Find

*asked by JOhn on May 2, 2013* -
## physics

A rectangular coil of dimensions 20cm by 15cm lies with its plane parallel to a magnetic field of 0.5W/m^2. The coil, carrying a current of 10A experiences a torque of 4.5Nm in the field. How many loops has the coil?

*asked by CALLISTUS on September 29, 2015* -
## math, trigonometric functions

a seesaw consists of a plank 4.5m long which is supported by a pivot at its center and moves in a vertical plane above the pivot. if the height of the pivot pillar above the ground is 1m, through what maximum angle can the seesaw beam move?

*asked by audrey anne on February 18, 2013* -
## Calculus

The base of a solid in the first quadrant of the xy plane is a right triangle bounded by the coordinate axes and the line x+y =4. Cross sections of the solid perpendicular to the base are squares. What is the volume, in cubic units , of the solid? A) 8 B)

*asked by Alice on January 25, 2019* -
## physics

The drawing shows two transverse waves traveling on two strings. The linear density of each string is 0.0483 kg/m, and the tension is provided by a 15.0-N block that is hanging from the string. Determine the speed of the wave in part (a) and part (b) of

*asked by Anonymous on October 31, 2014* -
## Chemistry

How long would it take a 20Kw heater to warm up 1000 litres of water from 15 degrees to 55 degrees in hours? specific heat of water = 4.18kJ. also How much heat would a block of ice melting at 200Kg per hour absorb? thanks if anyone can help!

*asked by Dave on October 21, 2012* -
## Math! Help Hurry!

Tasha has foam blocks stored in a box that measures 3 1/4 ft long by 3 ft wide by 1 ft tall. Each foam block is a cube with 1/4 ft edge length. How many blocks can fit into the box? A)156 B)312 C) 624 D) 2496

*asked by JT on March 15, 2017* -
## Math

Suppose a small cannonball weighing 16 pounds is shot vertically upward with an initial velocity Vo = 300 ft/s . a) Construct the mathematical model. b) Suppose air resistance is ignored, determine the velocity of the cannonball at any time t. c) Using the

*asked by Jawad Haider on March 2, 2018* -
## chem

A 25.0 g aluminum block is warmed to 65.2 C and plunged into an insulated beaker containing 55.3g of water initially at 22.0C. the aluminum and water are allowed to come to thermal equilibrium. Assuming that no heat is lost, what is the final temperature

*asked by natash on October 17, 2008* -
## Geometry

Nickles are made from a metal that is a mixture of nickle and copper. About how many nickles can be made if a 1 meter cubed block of this metal is melted down?

*asked by Caty on June 7, 2011* -
## Chemistry I

A block of aluminum with a volume of 96.6 cm3 absorbs 66.6 J of heat. If its initial temperature was 32.5 °C, what is its final temperature? (density of aluminum = 2.70 g/cm3

*asked by Robbie on September 15, 2010* -
## physics

With density g/cm3 copper 8.93 silver 10.5 mercury 13.6 will a block of copper or silver float higher in mercury in liquid form? Thank you.

*asked by Loui on April 24, 2011* -
## physics

a block off wood (density = 0.5 g/cm^3) is floating in oil (density = 0.75 g/cm^3). The mass of the wood is 1500 g. Determine the volume of the oil displaced

*asked by steph on December 2, 2011* -
## Physics

The two blocks in the figure are connected by a massless rope that passes over a pulley. The pulley is 17 in diameter and has a mass of 1.9 . As the pulley turns, friction at the axle exerts a torque of magnitude 0.40 . If the blocks are released from

*asked by Saif sidd on February 21, 2011* -
## Physics

A 200g block of copper at 90o C is dropped into 400g of water at 27o C contained in a 300g glass beaker at 27o C. What is the final equilibrium temperature of the mixture? cCu = 0.0924 cal/g°C cglass = 0.2 cal/g°C cwater = 1 cal/g°C

*asked by Angie on November 30, 2013* -
## Geometry

I don't know how to draw or do this. A plane 5 cm from the center of a sphere intersects the sphere in a circle with diameter of 24 cm. Find the diameter of the sphere.

*asked by Anna on March 27, 2008* -
## Physics

A taut massless string connects two boxes. The boxes are placed on an incline plane at θ = 32.00. What is the acceleration of boxes as they move down the incline, given m2 = 1.0 kg, m1 = 7.2 kg, μ2 = 0.10 and μ1 = 0.20.

*asked by Johnn on February 19, 2018* -
## Calculus-Applied Optimization Problem:

Find the point on the line 6x + 3y-3 =0 which is closest to the point (3,1). Note: Your answer should be a point in the xy-plane, and as such will be of the form (x-coordinate,y-coordinate)

*asked by Sara on October 30, 2013* -
## English

I forgot to include these last sentences. Could you check if the sentences are OK? Thank you. 1)Where has Peter gone? There he is. I've never flown in an plane before. 2)If don't run, you'll arrive late. She'll buy herself a mobile phone, as soon as she

*asked by Franco on February 7, 2011* -
## maths

A light air craft takes off flying die north then turns and flies 11 000 metres due west.The plane then has a bearing of 340 degrees from its starting point.For what distance did it fly due north?

*asked by Shane on March 6, 2013* -
## physics

Three charges are fixed in the x−y plane as follows: 1.5nC at the origin (0, 0); 2.6nC at (0.65m , 0); –1.8nC nC at (0, 1.50m ). Find the force acting on the charge at the origin. Express your answers using two significant figures. Enter the x and y

*asked by James on January 27, 2014* -
## Chemistry

In a unit cell(cubic)atoms A,B & C are located at corners, face-centres and edge centres respectively. If atoms touching one of the rectangular plane of symmetry and one of the tetrad axis are removed then formula of the compound will be? 1)ABC2 2)AC2

*asked by Swathi on May 25, 2011* -
## PHYSICS

A five turn square loop (10 cm on an edge and resistance = 4.0 ohms) is placed in a magnetic field that makes an angle of 30 degrees with the plane of the loop. The magnitude of this field varies with the time according to B = 0.50 t^2, where t is measured

*asked by HELP in physics!!! on November 11, 2013* -
## physics

A force acting on a particle moving in the xy plane is given by Fx = (2yi +x^2j)N, where x and y are in meters. The particle moves from the origin to a final position having coordinates x=5.00m and y=5.00m, as in Fig. Calculate the work done by F along (a)

*asked by Anonymous on April 3, 2018* -
## College Algebra

Part 1: Measure the distance of the diagonal (from one corner to the opposite corner) of the screen on your computer monitor to the nearest tenth of a centimeter or sixteenth of an inch. Measure the height of the screen along the vertical as well. Use the

*asked by Nicole on January 25, 2009* -
## Physics

part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of

*asked by kate on November 19, 2012* -
## Physics

part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of

*asked by kate on November 19, 2012* -
## Physics

part 1 of 3: A hawk flies in a horizontal arc of radius 9.9 m at a constant speed of 4.8 m/s. Find its centripetal acceleration. Answer in units of m/s^2. part 2 of 3: It continues to fly along the same horizontal arc but increases its speed at the rate of

*asked by kate on November 19, 2012* -
## Physics

*asked by Sarah on November 19, 2012* -
## HARD PHYSICS

A playground is on the flat roof of a city school, 5.7 m above the street below (see figure). The vertical wall of the building is h = 7.10 m high, to form a 1.4-m-high railing around the playground. A ball has fallen to the street below, and a passerby

*asked by Anonymous on October 4, 2011* -
## math

A playground is on the flat roof of a city school, 5.8 m above the street below (see figure). The vertical wall of the building is h = 7.30 m high, to form a 1.5-m-high railing around the playground. A ball has fallen to the street below, and a passerby

*asked by anonymous on February 14, 2012* -
## physics

The determined Wile E. Coyote is out once more to try to capture the elusive roadrunner. The coyote wears a new pair of Acme powered roller-skates, which provide a constant horizontal acceleration of 13 m/s2. The coyote starts off at rest 50 m from the

*asked by julymoe on September 22, 2010* -
## physics

A firefighter at street-level, 55.0 m away from a burning building, directs a stream of water from a fire hose at an angle of 35.0° above the horizontal. If the speed of the stream is 50.0 m/s, at what height will the stream of water strike the building?

*asked by micole on May 16, 2007* -
## ap Physics

AP PROBLEM CHILD ON A SWING AN ADULT EXERTS A HORIZONTAL FORCE ON A SWING THAT IS SUSPENDED BY A ROPE OF LENGTH L, HOLDING IT AN AN ANGLE q WITH THE VERTICAL. THE CHILD IN THE WING HAS WEIGHT W AND DIMENSIONS THAT ARE NEGLIGIBLE COMPARED TO L. THE WEIGHTS

*asked by Anonymous on January 3, 2011* -
## physics

a physical pendulum consists of a uniform solid disk (of radius R = 42.0 cm) supported in a vertical plane by a pivot located a distance d = 13.0 cm from the center of the disk. The disk is displaced by a small angle and released. What is the period of the

*asked by kylie on January 9, 2011* -
## PHYSICS

A ROCK IS THROWN OFF A CLIFF WITH AN HORIZONTAL VELOCITY OF 55.0 M/SEC. IT TAKES THE ROCK 7.0 SEC TO HIT THE GROUND A)WHAT IS THE HEIGHT OF THE CLIFF B) HOW FAR FROM THE FOOT OF THE CLIFF DOES THE ROCK HIT THE GROUND C)WHAT IS THE HORIZONTAL COMPONENT OF

*asked by HELPPPPPPP on October 16, 2011* -
## Physics

A copper (shear modulus 4.2 x 1010 N/m2) cube, 0.331 m on a side, is subjected to two shearing forces, each of magnitude F = 2.17 x 10 6 N (see the drawing). Find the angle (in degrees), which is one measure of how the shape of the block has been altered

*asked by Abigail on May 1, 2019* -
## Physics

1. A 0.50 kg ball is moving with a velocity of 8.0 m/s along a horizontal floor. It hits another ball with a mass of 0.80 kg and moving at 10.0 m/s in the opposite direction. If the first ball bounces back with a velocity of 12 m/s, with what velocity and

*asked by Ryzza on September 17, 2014* -
## Physics

A uniform steel beam of length 5.50 m has a weight of 4.50 103 N. One end of the beam is bolted to a vertical wall. The beam is held in a horizontal position by a cable attached between the other end of the beam and a point on the wall. The cable makes an

*asked by Bourne on October 8, 2007* -
## PHYSICS

The boom crane in the diagram is in static equilibrium and weighs 2000 N with its center of gravity in the middle of its length. It is supported by a frictionless pivot at the left end and a cable connected to the center of the boom and is supporting a

*asked by JENNY on December 11, 2006* -
## Physics

A perforated bead of mass 37g moves on a frictionless horizontal circular track of radius R=0.65m. The track runs through the bead. When the bead is at rest in the horizontal position, it is tied to a spring at the centre of the track. The unstretched

*asked by Anonymous on October 20, 2013* -
## Physics

Three point sized bodies each of mass M fixed at three corners of light triangular frame of side length L about an axis perpendicular to the plane of frame and passing through centre of frame the moment of inertia of three bodies is

*asked by Chandrika on October 16, 2017* -
## Physics

The drawing shows two surfaces that have the same area. A uniform magnetic field B fills the space occupied by these surfaces and is oriented parallel to the yz plane as shown. If = 17°, find the ratio xz/ xy of the magnetic fluxes that pass through the

*asked by Mary on October 11, 2007* -
## Physics

A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to

*asked by Jessica on February 20, 2012* -
## physics

A wire rectangle, 13 cm by 17 cm, has a resistance of 1.8 ohms. The magnetic field inside the loop is uniform and described by the equation B = B0e-at, where B0 = .65 Tesla and a = 200 s-1. The field is perpendicular to the plane of the loop. What is the

*asked by Anonymous on July 30, 2017* -
## Physics

A jet plane is cruising at 225.0m/s when suddenly the pilot turns the engines up to full throttle. After travelling 2.26km, the jet is moving with a speed of 392.0m/s. What is the jet's acceleration, assuming it to be a constant acceleration?

*asked by Sarah on September 29, 2012* -
## physics

A penny is placed at the outer edge of a disk (radius = 0.119 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.70 s. Find the minimum coefficient of friction necessary to allow the penny to

*asked by Anonymous on February 23, 2014* -
## Physics

A penny is placed at the outer edge of a disk (radius = 0.159 m) that rotates about an axis perpendicular to the plane of the disk at its center. The period of the rotation is 1.50 s. Find the minimum coefficient of friction necessary to allow the penny to

*asked by Jessica on February 20, 2012* -
## Physics

Two charges +q and −q are separated by a distance d=50 cm. The electric field lines for this system form the the well-known pattern showed in the figure below. Consider two lines L1 and L2 lying on the same plane and leaving the positive charge at

*asked by Brian on July 1, 2013* -
## physics

a bullet of mass 20g traveling horizontally at 100m/s embedded itself in the center of block of wood mass 1kg which is suspended by a light vertical string of length 1m. calculate the maximum inclination of the string to the vertical

*asked by la roux on April 18, 2010* -
## math

Shelly sews a blanket that has an area of 170 square feet. it has 30 square blocks, each the same size. What is the approximate length of each side of a block. a. 1 foot b. 2 feet c. 3 feet d. 4 feet I doubled checked and the problem is correct. I just

*asked by Larry on October 30, 2012* -
## critical thinking

What theoretical considerations enter into the defintion of natural? In nature, during pregnancy, progestin is producted to block the release of additional eggs. The Pill is progestin in tablet form. Therefore, the Pill is a natural method of birth

*asked by tammy on June 7, 2008* -
## physics

A certain spring elongates 9 mm when it is suspended vertically and a block of mass M is hung on it. The natural frequency of this mass-spring system is: a)0.014 b)5.3Hz c)31.8Hz d)181.7Hz e)need to know M please explain the answer....and hope to answer

*asked by heba on June 18, 2010* -
## physics 1

Glass has a density of about 2500 Kg/m^3. fresh water has a density of 1000 kg/m^3. if a 5 kg block of glass is sitting on the bottom of a freshwater fish tank, what is the normal force on the floor of the tank? 30N is what my professor says is correct,

*asked by Maria on April 7, 2017* -
## Physics

Modern bowling alleys have automatic ball returns. The ball is lifted to a height of 2.50 at the end of the alley and, starting from rest, rolls down a ramp. It continues to roll horizontally and eventually rolls up a ramp at the other end that is 0.700

*asked by Sherry on July 7, 2012* -
## Dynamics

A uniform rod m1 and having a length L is hanging vertically downward and pin supported at the center of mass of a roller (disc) which rides on a horizontal track. Assuming that the system was initially at rest find the initial acceleration of the roller

*asked by Jonnie on November 8, 2015* -
## Physics

A block and tackle with a velocity ratio of 5 is used to raise a mass of 25kg through a vertical distances of 40cm at a steady rate.if the effort is equal to 60N,determine.(a)The distance moved by the effort.(b)The workdone by the effort in lifting the

*asked by Rose on January 1, 2015* -
## physics

A boy weighing 4.2 102 N jumps from a height of 1.80 m to the ground below. Assume that the force of the ground on his feet is constant. (a) Compute the force of the ground on his feet if he jumps stiff-legged, the ground compresses 2.20 cm, and the

*asked by Anonymous on February 3, 2011* -
## Physics

A boy weighing 3.9 102 N jumps from a height of 2.15 m to the ground below. Assume that the force of the ground on his feet is constant. a) Compute the force of the ground on his feet if he jumps stiff-legged, the ground compresses 1.80 cm, and the

*asked by Stacey on September 20, 2015* -
## My Final Algebra 1 Question

Will someone evaluate my answers and guide me through answering the last two parts of the problem? Thank you. 5. Principal Farley has $200 to pay for some teachers to attend a technology conference. The company hosting the conference is allowing 2 teachers

*asked by Victoria on June 10, 2014* -
## English

Select the word or phrase in the sentence that is not used correctly 1) The physician started to perform the operation, but the patient was not yet completely under anesthesia. a) Started to b) Perform c) Was not d) Completely under 2) Before his death at

*asked by meg on October 3, 2017* -
## English12

Need help on a Research paper, my author is CS Lewis, I am having a major writers block on what to write about, teacher has left it fairly open, need to have an outline and cited works today but he is pretty slack I could have it in tomorrow and be fine,

*asked by Brad on May 30, 2013* -
## college Physics I

A playground is on the flat roof of a city school, 5.2 m above the street below (see figure). The vertical wall of the building is h = 6.50 m high, forming a 1.3-m-high railing around the playground. A ball has fallen to the street below, and a passerby

*asked by Katie on January 29, 2010* -
## physics

A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal surface of length ℓ = 0.65 m as in the figure below. If the coefficient of kinetic friction between the crate and rough surface is 0.357 and he exerts a

*asked by Ange on March 9, 2015* -
## Algebra 1 (Ms. Sue)

1). Solve each equation. 17 = w - 4 2/3s = -6 1/3y + 1/4 = 5/12 x/8 - 1/2 = 6 5/6x - 1/3 = 5/2 2). In 1668, the Hope diamond was reduced from its original weight by about 45 carats, resulting in a diamond weighing about 67 carats. Write and solve an

*asked by Anonymous on September 11, 2013* -
## Physis

A bullet of mass of 30g and travelling at a speed of 200msˉ¹ embeds itself in a wooden block. The bullet penetrates a distance of 12cm into the wood. Using the concepts of work done by a force and kinetic energy, determine the average resistive force

*asked by James on March 8, 2012* -
## Physics

The two blocks in the figure below, m1 = 1.2 kg and m2 = 4.8, are connected by a massless rope that passes over a pulley. The pulley is 12 cm in diameter and has a mass of 2.0 kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.38

*asked by Alex on November 21, 2012* -
## Physics

Three blocks are connected on the table as shown below. The coefficient of kinetic friction between the block of mass m2 and the table is 0.345. The objects have masses of m1 = 3.25 kg, m2 = 1.25 kg, and m3 = 2.50 kg, and the pulleys are frictionless. The

*asked by Alan on February 11, 2015* -
## teaching in early childhood programs

A teacher notices that the children have created a block town that includes a simple pyramid. The teacher points out the pyramid and talks with them about it, and then encourages them to make more of them. The teacher is employing A. problem solving. B.

*asked by Diana on September 7, 2014* -
## Physics

This deals with Projectile Motion and I would be glad if someone were to check if my answers are correct. 1. c 2. b 3. a 4. d If air resistance were to be ignored, 1.a projectile that has a horizontal velocity is a)zero b)constant c)increasing d)decreasing

*asked by Jenice on January 29, 2015* -
## Science

1. what is the momentum of a 20.0 kg scooter traveling at 5.00 m/s? 4.00 kg m/s 20.0 kg m/s 25.0 kg m/s 100 kg m/s 2. Which of the following describes the relationships between friction and inertia? when there is more friction, there is less inertia when

*asked by Help Please on February 2, 2016* -
## Physics ASAP PLease

A railroad gun of mass M = 2.0 kg fires a shell of mass m =1.0 kg at an angle of theta= 35.0 with respect to the horizontal as measured relative to the gun. After the firing is complete, the final speed of the projectile relative to the gun (muzzle

*asked by askas on October 26, 2013* -
## physics

A railroad gun of mass M = 2.0 kg fires a shell of mass m =1.0 kg at an angle of theta= 35.0 with respect to the horizontal as measured relative to the gun. After the firing is complete, the final speed of the projectile relative to the gun (muzzle

*asked by ashok on November 4, 2013* -
## physics

Grant accelerates a 1kg ball 5.0m/s2 horizontally. The vertical acceleration of the ball is zero. The force of gravity is the only external force acting on the ball other than the forces Grant exerts on it. a-How large is the horizontal force grant exerts

*asked by aaron on March 1, 2015* -
## Physics/Math

A 1.50 kg snowball is fired from a cliff 13.5 m high with an initial velocity of 14.0 m/s, directed 41.0° above the horizontal. (a) Using energy techniques, rather than techniques of Chapter 4, find the speed of the snowball as it reaches the ground below

*asked by Technoboi11 on March 11, 2007* -
## two dimensional kinematics

A jetliner with an airspeed of 1000 kmlhr sets out on a 1500 km flight due south. To maintain a southward direction, however, the plane must be pointed fifteen degrees west of south. Ifthe flight takes 1 00 min, what is the wind velocity?

*asked by ringo on October 8, 2012* -
## Physics -HELP

A coil with 337 turns of wire, a total resistance of 47 Ω, and a cross-sectional area of 0.35 m2 is positioned with its plane perpendicular to the field of a powerful electromagnet. What average current is induced in the coil during the 0.30 s that the

*asked by Jake on December 21, 2016* -
## Physics

An airplane flies 340 km due east, makes a right-angle turn, and then flies 390 km due north. Find the magnitude of the plane’s displace- ment from its starting point. Neglect the curvature of the earth. Answer in units of km

*asked by Crystal on September 30, 2012* -
## PHYSICS

A 650 newton skydiver jumps out of a plane at an altitude of 5000m. 8 seconds after he stops accelerating, he is moving at 50m/s. How large is the air resistance acting against him? less than 650n Equal to 650 N Greater than 650N Is this enought

*asked by GRISSELL on February 5, 2012* -
## Physics

A coil with 347 turns of wire, a total resistance of 49 Ω, and a cross-sectional area of 0.28 m2 is positioned with its plane perpendicular to the ﬁeld of a powerful electromagnet. What average current is induced in the coil during the 0.31 s that the

*asked by Jenna on April 22, 2013* -
## MATH

Travel Time A company president flew 680 miles one way in the corporate jet but returned in a smaller plane that could fly only half as fast. If the total travel time was 6 hours, find the speeds of the planes. how would I set up this problem?

*asked by jennifer on September 25, 2008* -
## Physics/Math

What are the x and y components of a vector a in the xy plane if it's direction is 215 degrees counterclockwise from the positive direction of the x axis and its magnitude is 12.9 m ? you would be in the third quadrant, so both x and y are negative. The

*asked by COFFEE on February 18, 2007*

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