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August 30, 2014

Homework Help: Science: Physics

Recent Homework Questions About Physics

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physics
choose the correct answer and why? a car starts from rest and reaches speed of 80 km/h in 16 s the average acceleration of the car is: a\ 0.7 m/s*2 b\1.4 m/s*2 c\5 m/s*2
Thursday, February 20, 2014 at 12:27pm

Physics
A 14g bullet is traveling at 306m/s when it strikes a block of wood. If the block of wood exerts a force of 50,000 N opposing the motion of the bullet, how far will the bullet penetrate the block of wood?
Thursday, February 20, 2014 at 12:24pm

Physics
A uniform rope with length L and mass m is held at one end and whirled in a horizontal circle with angular velocity w. You can ignore the force of gravity on the rope. (a) At a point on the rope a distance r from the end that is held, what is the tension F? (b) What is the ...
Thursday, February 20, 2014 at 12:22pm

physics
If the cart weighs 8.7kg and the cart starts at a height of 3m, what is the final velocity of the cart? the starting velocity is 0
Thursday, February 20, 2014 at 12:15pm

Physics
A 600-kg car is going around a curve with a radius of 120 m that is banked at an angle of 25.0° with a speed of 30.0 m/s.The coefficient of static friction between the car and the road is 0.300. What is the force exerted by friction on the car?
Thursday, February 20, 2014 at 6:22am

physics 2
a certain 12v storage battery with an internal resistance of 12 ohms delivers 80 A when used to crank a gasoline engine. if the battery mass is 20 kg and it has average specific heat of 0.2 kcal/kg K. what is its rise in temperaure during 1 min of cranking the engine. assume ...
Thursday, February 20, 2014 at 4:44am

Physics
A train is moving parallel and adjacent to a highway with a constant speed of 27 m/s. Ini- tially a car is 29 m behind the train, traveling in the same direction as the train at 38 m/s and accelerating at 2 m/s2. What is the speed of the car just as it passes the train? Answer...
Thursday, February 20, 2014 at 2:30am

Physics
A student performs a ballistic pendulum experiment using an apparatus similar to that shown in the figure. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rises to its highest ...
Thursday, February 20, 2014 at 2:28am

physics
A cart of mass m = 1.10 kg on a track undergoes a collision with another cart. It's velocity before and after the collision, vi and vf is measured and found to be vi = 2.12¡À0.06 m/s and vf = 0.60¡À0.08 m/s. Calculate the following quantities ...
Wednesday, February 19, 2014 at 11:52pm

Physics
A 30m high cylindrical water tank has a diameter of 14m. The tank is two-thirds full of water. What is the pressure at the bottom of the tank?
Wednesday, February 19, 2014 at 11:49pm

Physics
Find the net force and the acceleration for the situation below. 30N 20N <---------------[ 5.1kg]---------->
Wednesday, February 19, 2014 at 11:44pm

Physics
I only need help with part B. A 250W computer power supply is on 10 h per day. Part A If the cost of electricity is $0.15/kWh, what is the energy cost (to the nearest dollar) if this computer is used like this for a year (365 days)? 140 dollars Part B If this power supply is ...
Wednesday, February 19, 2014 at 11:16pm

Physics
A block of mass 21.0kg kg slides down a frictionless surface inclined at 33 ∘ ^\circ.To ensure that the block does not accelerate, what is the magnitude of the smallest force that you must exert on it?
Wednesday, February 19, 2014 at 10:56pm

Physics
A certain radioactive element has a half liv of 20days, how long does it take 3/2 of the atom originally present to disintegrate
Wednesday, February 19, 2014 at 10:15pm

Physics
You are general in the Napoleonic wars. You are on top of a plain 12m talk and you have a cannon tht can shoot a cannonball out at 350 m/s. 800 m away is a thick forest that you cannot see into but one of your scouts in a hot air balloon has just signaled to you that an enemy ...
Wednesday, February 19, 2014 at 9:42pm

Physics
You are a general in the Napoleonic wars. An enemy fort 10m tall is located 1000m from your cannon. Your cannon expert is insisting that you will get the best results at an angle of 25 above the horizontal. Your cannon is located on a hill 10m tall. You have soldiers storming ...
Wednesday, February 19, 2014 at 9:36pm

Physics
You are a general in the Napoleonic war. The battle has taken you to a trench 7m deep. You have a mortar that will fire an explosive at a speed of 200 m/s at an angle of 80. You have a low flying reconnaissance airplane scouting out the enemy troops at a height of 500 m. Your ...
Wednesday, February 19, 2014 at 9:31pm

Physics
Suppose you are a general in the Napoleonic wars. You are no top of a plain 50 m high overlooking the enemy soldiers. You now have a brand new cannon that will decimate the enemy. Unfortunately in the christening process you used some rather cheap grade champagne and all the ...
Wednesday, February 19, 2014 at 9:27pm

Physics
Two identical gliders slide toward each other on an air track. One moves at 2 m/s and the other at 1 m/s. If they stick together, the combination slides at? Why?
Wednesday, February 19, 2014 at 9:24pm

Physics
A ball is thrown upward in two dimensions with an initial speed of 17 Zlugs per mega handle(made up) near the surface of the planet earth. What will be the y component of the balls velocity at the peak of its trajectory?
Wednesday, February 19, 2014 at 8:58pm

Physics
A cannon shoots a cannonball with an initial speed of 25 m/s at an angle 13. 1. What is the x component of the cannonballs initial velocity Vox? 2. What is the y component of the cannonballs initial velocity Voy? 3. What will be Vy, the y component of the cannonballs final ...
Wednesday, February 19, 2014 at 8:57pm

Physics
A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y component of the ...
Wednesday, February 19, 2014 at 8:56pm

Physics
A. Consider the motion of a projectile. It is fired at t= 0. Its initial speed is 12 m/s and its initial projection angle is 50◦ from the horizontal. The acceleration of gravity is 9.8 m/s^2. What is the maximum height,h, of its trajectory? Answer in units of m. B. ...
Wednesday, February 19, 2014 at 8:48pm

Physics
A small rocket weighs 14.7 newtons. The rocket is fired from a high platform but it's engine fails to burn properly. The rocket gains total upward force if only 10.2 newtons. At what rate and in what direction is the rocket accelerated?
Wednesday, February 19, 2014 at 8:41pm

Physics
During a baseball game, a batter hits a pop-up to a fielder 78 m away. The acceleration of gravity is 9.8 m/s^2. If the ball remains in the air for 5.7 s, how high does it rise? Answer in units of m.
Wednesday, February 19, 2014 at 8:37pm

Physics 101
Consider two waterfalls, one twice the height of the other. The kinetic energy of each kilogram of water falling to the bottom of the taller waterfall is about?
Wednesday, February 19, 2014 at 8:08pm

physics
A 400 g marble block has a specific heat of 860 J/kg C deg. If the block is placed in 700 ml of water, the marble changes it temperature by 17 Celsius degrees. Since the specific heat of water is known to be 4186 J/kg C deg, what is the temperature change of the water. (The ...
Wednesday, February 19, 2014 at 7:20pm

physics
A wave travels at 575 m/sec in a dense media. The wave is observed to The length of the media is 95.8 cm. When the wave is reflected at the end, its phase is reversed (an upward motion becomes a downward motion.) What is the frequency of the resonant wave in this media?
Wednesday, February 19, 2014 at 7:19pm

physics
The speed of sound in air varies with the temperature and humidity of the air. In dry air at 20 degrees Celsius, the speed of sound is approximately 343 m/sec. A closed tube resonates with a node at each end for a sound wave in air. What is the length of tube you would choose ...
Wednesday, February 19, 2014 at 7:19pm

Physics
A 45kg block slides down an incline that is angled at 41 degrees. If the coefficient of kinetic friction between the block and the incline is 0.45 what is the block's acceleration?
Wednesday, February 19, 2014 at 5:59pm

PHYSICS
A girl rows 10 km downstream in 2 h. Her return trip takes 3 h. How fast is the current. in km/
Wednesday, February 19, 2014 at 3:36pm

PHYSICS
car traveling at 28.8 m/s hits a stone wall . The driver, who is wearing a shoulder harness and seat belt, moves forward 0.93 m as the car stops. Assuming his acceleration is uniform, find his average velocity during the collision. in m/S
Wednesday, February 19, 2014 at 3:18pm

PHYSICS
A girl rows 10 km downstream in 2 h. Her return trip takes 4 h. How fast can she row in still water. in km/h?
Wednesday, February 19, 2014 at 3:08pm

PHYSICS
Sun..BLANK....than moon. earth iS..BLANK... mercury.
Wednesday, February 19, 2014 at 2:36pm

PHYSICS
A woman wantes to drive 83 km in 2 h. If she average 42 km/h for the first 1.27 h, what average velocity must she maintain for the remaining time in km/h
Wednesday, February 19, 2014 at 1:10pm

Physics
A delivery truck travels 21 blocks north, 17 blocks east, and 27 blocks south. What is its final displacement from the origin (direction)?
Wednesday, February 19, 2014 at 12:31pm

Physics
A block with a mass of m = 21 kg rests on a frictionless surface and is subject to two forces acting on it. The first force is directed in the negative x-direction with a magnitude of F1 = 9.5 N. The second has a magnitude of F2 = 19.5 N and acts on the body at an angle θ...
Wednesday, February 19, 2014 at 11:04am

physics
two boys trying to move a 200 kg cement block pull on two ropes attached to the block the tension in the ropes are 400N and 300N while the angle between them is 50°. sketch a vector triangle showing and naming the two forces exerted by the boys as well as their resultant.
Wednesday, February 19, 2014 at 10:48am

Physics 2
An antenna is connected to a car battery. Will the antenna emit electromagnetic radiation? Why or why not? Explain
Wednesday, February 19, 2014 at 10:03am

Physics
An object of mass m orbits a star with mass M , where M >> m . In general the bound or bits are elliptical, which means the kinetic energy of the object T and the gravitational potential energy U may vary. For bound orbits, the total energy E is negative. If the orbit is...
Wednesday, February 19, 2014 at 8:27am

Physics
An object of mass m orbits a star with mass M , where M >> m . In general the bound or bits are elliptical, which means the kinetic energy of the object T and the gravitational potential energy U may vary. For bound orbits, the total energy E is negative. If the orbit is...
Wednesday, February 19, 2014 at 8:25am

Physics
An object of mass 2 kg is attached to a string to form a pendulum. It is initially displaced to a height of 10 cm above the lowest point and let go. It hits another object of mass 1 kg at its lowest point. Given that the collision is elastic, find the distance traveled by the ...
Wednesday, February 19, 2014 at 8:24am

Physics 1
The drawing shows three particles far away from any other objects and located on a straight line. Particle B is located in the middle of particles A and C. The distance between particles A and B is 0.500 m. The distance between particles B and C is 0.250 m. The masses of these...
Wednesday, February 19, 2014 at 3:25am

physics
A 2 kg mass resting on a smooth plane inclined 20 degrees to the horizontal. A cord which is parallel to the plane passes over a massless, frictionless pulley to a 4 kg mass which will drop vertically when released. What will be the speed of the 4 kg mass 4 seconds after it is...
Wednesday, February 19, 2014 at 2:44am

Physics
Canadian geese migrate essentially along a north-south direction for well over a thousand kilometers in some cases, traveling at speeds up to about 100 km/h. If one such bird is flying at 100 km/h relative to the air, but there is a 38.0km/h wind blowing from west to east. a) ...
Wednesday, February 19, 2014 at 2:14am

Physics
A canoe has a velocity of 0.410m/s southeast relative to the earth. The canoe is on a river that is flowing at 0.510m/s east relative to the earth. Find the magnitude of the velocity v⃗ c/r of the canoe relative to the river
Wednesday, February 19, 2014 at 2:11am

Physics
A. Given two vectors ~F1, and ~F2. Where the magnitude of these vectors are F1= 81 N, and F2= 90 N. And where θ1= 80◦,and θ2= 22◦. The angles are measure from the positive x axis with the counterclockwise angular direction as positive. What is the ...
Wednesday, February 19, 2014 at 1:12am

physics
A person in a kayak starts paddling, and it accelerates from 0 to 0.59 m/s in a distance of 0.43 m. If the combined mass of the person and the kayak is 72 kg, what is the magnitude of the net force acting on the kayak?
Wednesday, February 19, 2014 at 12:44am

physics
A convex mirror with a radius of curvature of 39.0 cm forms a 0.95 cm tall image of a pencil at a distance of 12.1 cm behind the mirror. What is the magnification?
Tuesday, February 18, 2014 at 11:21pm

physics
An electron moves through an electric field, and its speed drops from 2000m/s to 1000m/s. What's the potential difference between the two points at which the speed was measured? Express your answer with the appropriate units. I got 5.694*10^(-9) V any help would be great, ...
Tuesday, February 18, 2014 at 11:00pm

Physics
A convex mirror with a radius of curvature of 39.0 cm forms a 0.95 cm tall image of a pencil at a distance of 12.1 cm behind the mirror. What is the magnification?
Tuesday, February 18, 2014 at 10:58pm

physics
A concave shaving mirror has a radius of curvature of 22.0 cm. For each of the following cases, find the magnification and determine whether the image formed is real or virtual and upright or inverted. (a) an upright pencil placed 41.4 cm from the mirror.
Tuesday, February 18, 2014 at 10:33pm

Physics
First start with an isothermal expansion at 2.0 atm from 1.0 L to 4.0 L. If this now is adiabatically compressed back to its original volume, what is the change in internal energy here? Also what are some examples of these processes?
Tuesday, February 18, 2014 at 10:05pm

physics
A 2000 kg is released from a height 20m, and hits a 700kg car at the bottom of the swing. The car is sent horizontally 30, before coming to a stop, and the ball is going 12m/s immediately after they hit. What force of friction is acting between the car and the ground?
Tuesday, February 18, 2014 at 10:00pm

physics
A tennis player standing 9.7 m from the net hits the ball at 3.42° above the horizontal. To clear the net, the ball must rise at least 0.291 m. If the ball just clears the net at the apex of its trajectory, how fast was the ball moving when it left the racquet?
Tuesday, February 18, 2014 at 9:57pm

Physics
A roach that runs for its life because you try to hit it with your physics book runs off the horizontal tabletop with a speed of 0.582 m/s. It strikes the floor a horizontal distance 0.315 m away from the edge of the table. Ignore air resistance. What will be the vertical ...
Tuesday, February 18, 2014 at 9:56pm

Physics
Mission Impossible: Special agent Ethan Hunt tries to escape an assassin by jumping horizontally off a flat roof. His goal is to reach a window, two stories or 5.15 m down, on the building across the alley. Ignore air resistance. If the alley is 11.9 m wide, how fast must he ...
Tuesday, February 18, 2014 at 9:55pm

physics
The best leaper in the animal kingdom is the puma, which can jump to a height of 11.7 ft when leaving the ground at an angle of 51°. With what speed, in SI units, must the animal leave the ground to reach that height?
Tuesday, February 18, 2014 at 9:51pm

marine physics
If the sea level rises by 20 cm from west to east , across the Red sea, a distance of 250 km at 20 N, what is the average speed and direction of the current
Tuesday, February 18, 2014 at 8:26pm

Physics
Two protons, an infinite distance apart are brought together to a separation of 1 nm. What is the initial potential energy of the system?
Tuesday, February 18, 2014 at 6:12pm

Physics
If the force between two charges decreases by a factor of 100 because the charges are moved further apart
Tuesday, February 18, 2014 at 6:03pm

physics
Superman must stop a 120km/h train in 150m to keep it from hitting a stalled car on the tracks.If the train's mass is 3.6x10^5kg,how much force must he exert?Compare to the weight of the train (give as%).
Tuesday, February 18, 2014 at 3:43pm

physics
Two parallel plates are charged to a potential difference of 10.0 volts. Determine the maximum speed of an electron that starts from rest at the negative plate and travels towards the positive plate.
Tuesday, February 18, 2014 at 3:34pm

PHYSICS
An electron in a TV is accelerated toward the screen across a potential difference of 52.8 kV. How much kinetic energy does the electron gain while accelerating? How would you solve this?
Tuesday, February 18, 2014 at 2:37pm

Physics
Similarities between distance and displacement similarities between speed and velocity
Tuesday, February 18, 2014 at 1:51pm

physics
A Mercedes-Benz 300SL (m = 1700 kg) is parked on a road that rises 15 degrees above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires? Important: Assume that the road is higher up to the ...
Tuesday, February 18, 2014 at 12:37pm

physics 1
A person is trying to judge whether a picture (mass = 2.27 kg) is properly positioned by temporarily pressing it against a wall. The pressing force is perpendicular to the wall. The coefficient of static friction between the picture and the wall is 0.790. What is the minimum ...
Tuesday, February 18, 2014 at 12:30pm

physics 1
The drawing shows three particles far away from any other objects and located on a straight line. The masses of these particles are mA = 347 kg, mB = 575 kg, and mC = 117 kg. Take the positive direction to be to the right. Find the net gravitational force, including sign, ...
Tuesday, February 18, 2014 at 12:11pm

Physics
An object initially at rest experiences an acceleration of 1.4m/s2 for 8.0s and then travels at that constant velocity for another 6.0s . What is the object’s average velocity over the 14s interval?
Tuesday, February 18, 2014 at 12:08pm

physics 1
A 103-kg baseball player slides into second base. The coefficient of kinetic friction between the player and the ground is ìk = 0.729. (a) What is the magnitude of the frictional force? (b) If the player comes to rest after 1.27 s, what is his initial speed?
Tuesday, February 18, 2014 at 11:55am

physics 1
The drawing shows a wire tooth brace used by orthodontists. The top-most tooth is protruding slightly, and the tension in the wire exerts two forces, and T,T1 on this tooth in order to bring it back into alignment. If the forces have the same magnitude of 20.7 N, what is the ...
Tuesday, February 18, 2014 at 11:42am

physics
A person is trying to judge whether a picture (mass = 2.27 kg) is properly positioned by temporarily pressing it against a wall. The pressing force is perpendicular to the wall. The coefficient of static friction between the picture and the wall is 0.790. What is the minimum ...
Tuesday, February 18, 2014 at 11:38am

physics
I need to find the coefficient of the kinetic friction of the following: "a block weighing 300 newtons is moved at a constant speed over a horizontal surface be a force of 50 newtons applied parallel to the surface" would I do the following? k = coefficient of ...
Tuesday, February 18, 2014 at 10:03am

physics
David and his father sat at the end of a see-saw 2 m from the pivot. where should David's mother sit in order to balance the see-saw
Tuesday, February 18, 2014 at 6:59am

physics
we have learnt that Earth's gravitational field strength is 10 N/kg is the same as its acceleration due to free fall (10 m/s/s. even though their units are different, they are said to be dimentionally the same. prove that N/kg is the same as m/s/s
Tuesday, February 18, 2014 at 6:55am

Physics
A 10-kg box is at rest on a horizontal frictionless surface, at the end of an unstretched horizontal spring with constant k = 4000 N/m. The mass is then quickly struck with a hammer that imparts an impulse along the horizontal direction, compressing the spring a maximum ...
Tuesday, February 18, 2014 at 1:48am

Physics
A 10-kg box is at rest on a horizontal frictionless surface, at the end of an unstretched horizontal spring with constant k = 4000 N/m. The mass is then quickly struck with a hammer that imparts an impulse along the horizontal direction, compressing the spring a maximum ...
Tuesday, February 18, 2014 at 12:08am

Physics
1200kg car moving at 9.72m/s runs into and sticks to a parked 1000kg car. The collision takes 0.15s and after the crash the cars wheels lock and they skid to a stop on the u=0.40 road. what is the distance travelled before skidding to a stop?
Monday, February 17, 2014 at 11:50pm

Physics
The figure shows portions of two large, parallel, non-conducting sheets, each with a fixed uniform charge on one side. The magnitudes of the surface charge densities are σ(+) = 4 μC/m2 for the positively charged sheet and σ(-) = 10 μC/m2 for the negatively ...
Monday, February 17, 2014 at 10:54pm

Physics
1. Two points in a plane have polar coordinates (2.5 m, 30 degrees) and (3.8 m, 120 deg). Determine (a) the cartesian coordinates of both points and (b) the distance between the points. 2. Vector A has magnitude 29 units and points along +y. When vector B is added to the ...
Monday, February 17, 2014 at 10:40pm

Physics
A cart rolls down a hill, if the cart weighs 8.7kg and the cart starts at a height of 3.0m, what is the final velocity of the cart?
Monday, February 17, 2014 at 10:24pm

Physics
A 2.0 micro farad capacitor in a circuit in series with a resistor of .0 MOhms is charged witha 6.0V battery. How long would it take to charge to 3/4 of its maximum voltage?
Monday, February 17, 2014 at 10:05pm

physics
You would like to shoot an orange out of a tree with your bow and arrow. The orange is hanging 5.00 m above the ground. On your first try, you fire the arrow at 36.0 m/s at an angle of 30.0° above the horizontal from a height of 1.40 m while standing 41.0 m away. Treating ...
Monday, February 17, 2014 at 9:06pm

physics
Assume that the pitch of a honking car horn is the F above middle C (f F= 349 Hz) and the speed of sound in air is 770 mph. How fast would a honking car need to be approaching you for you to hear a G (fG = 392) instead of an F?
Monday, February 17, 2014 at 7:31pm

Physics
Assume that you take data on the projectile range for a variety of different launch angles A at a fixed initial velocity Vo. You would like to plot your data to see if the range formula discussed in the introduction is supported by the data. The easiest way to do this is to ...
Monday, February 17, 2014 at 6:57pm

Physics
For a given initial projectile speed, you observe that the projectile has a certain range R at a launch angle A = 30 degrees. For what other launch angle will the projectile have the same range (assuming the same initial projectile speed)? Without the use of mathematical ...
Monday, February 17, 2014 at 6:52pm

Physics
For a given initial projectile speed Vo, calculate what launch angle A gives the longest range R. Show your work, don't just quote a number.
Monday, February 17, 2014 at 6:49pm

physics
You exert a larger force on the cart than the cart exerts on you. T/F When you stop pushing, the cart will continue moving at the same speed. T/F While the cart is pushed, it has a constant acceleration. T/F
Monday, February 17, 2014 at 6:37pm

physics
• If you use a cart with half the mass, you reach _______final speed. • If you use half the force, you reach ______ final speed. • If you push twice as long, you cover _______ distance during pushing. • If you use a cart with half the mass, you cover_______...
Monday, February 17, 2014 at 6:35pm

Physics
If the fundamental frequency of an 70 cm long guitar string is 470 Hz, what is the speed of the traveling waves?
Monday, February 17, 2014 at 6:02pm

Physics
A pot containing 2 liters of 5 celsius water is putt on a stove that is 1500 watts. Now the stove is on. How long time will it take for all of the water to boil from the pot? (turn into vapour). No heat is lost to the surroundings.
Monday, February 17, 2014 at 5:16pm

physics
The Achilles tendon is attached to the rear of the foot as shown in (Figure 1) . A person elevates himself just barely off the floor on the "ball of one foot." Assume the person has a mass of 80kg and D is twice as long as d.Find the tension FT in the Achilles tendon...
Monday, February 17, 2014 at 5:03pm

Physics
A 2473 kg elephant is walking at 3 m/s on a flat surface. How much kinetic energy does he have? Answer in Joules
Monday, February 17, 2014 at 5:00pm

Physics
A 2473 kg elephant is walking at 3 m/s on a flat surface. How much kinetic energy does he have? Answer in Joules or J
Monday, February 17, 2014 at 4:25pm

physics
a rope breaks when the tension exceeds 30.0n. what is the minimum acceleration downard that a 60.0n load can have without breaking the rope
Monday, February 17, 2014 at 3:54pm

Physics
You are going to toss a rock straight up into the air by placing it on the palm of your hand(you are not gripping it) then pushing your hand up very rapidly. Draw a free body a diagram for the rock for each situation, and write the sum of equation based on the free body ...
Monday, February 17, 2014 at 3:40pm

Physics
Some insects can walk below a thin rod (such as a twig) by hanging from it. Suppose that such an insect has mass m and hangs from a horizontal rod as shown in the figure, with angle θ = 37°. Its six legs are all under the same tension, and the leg sections nearest the...
Monday, February 17, 2014 at 2:49pm

Physics
A cannon fires a free projectile at an angle 85 from the ground. The cannonball has a speed of 150 m/s and it is launched from a hill 20 m above the plain where it will land 1. What is the x component of the cannonballs initial velocity 2. What is the y component of the ...
Monday, February 17, 2014 at 2:43pm

Physics
A cannon shoots a cannonball with an initial speed of 25 m/s at an angle 13. 1. What is the x component of the cannonballs initial velocity Vox? 2. What is the y component of the cannonballs initial velocity Voy? 3. What will be Vy, the y component of the cannonballs final ...
Monday, February 17, 2014 at 2:34pm

Physics
A ball is thrown upward in two dimensions with an initial speed of 17 Zlugs per mega handle(made up) near the surface of the planet earth. What will be the y component of the balls velocity at the peak of its trajectory?
Monday, February 17, 2014 at 2:26pm

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