Thursday

July 31, 2014

July 31, 2014

Total # Posts: 2,300

**Physics**

The brakes of a truck cause it to slow down by applying a retarding force of 8740 N to the truck over a distance of 1130 m. What is the work done by this force on the truck?

**Algebra**

It says this site is homework help, why don't you evaluate it for her? She needs help!

**math**

emma has 364 cookes . chis has 8956432090 cookes .aaron has 14235 times as many cookes as chis and emma

**science**

3 is Commensalism 4 is none of the above. (~:

**fractions from least to greatest**

I dont now

**Physics Help!**

Find the total kinetic energy content of 1.55 moles of an ideal gas at temperature 435 K

**Physics Help!**

Gas is contained in an 8.45 liter vessel at a temperature of 19.8oC and a pressure of 8.70 atm. Determine the number of moles of gas in the vessel. Do not enter units.

**Physics Help!**

An automobile fuel tank is filled to the brim with 45.3 liters (12.1 gallon) of gasoline at 14.5 degrees C. Immediately afterward, the vehicle is parked in the Sun, where the temperature is 34.5 degrees C. How much gasoline (in Liter) overflows from the tank as a result of the...

**Physics Help!**

The New River Gorge bridge in West Virginia is a 514 m long steel arch. How much will its length change between temperature extremes -20.3 degrees C and 32.7 degrees C

**Math**

The answer is 30

**math**

Nathan sells pencils in boxes of 10 and 12. Roy bought x boxes of 12 pencils. (a) Write down an expression, in terms of x, for the number of pencils Roy bought

**physics**

A golfer launches a golf ball off a tee that has been raised 24.8 meters off the ground. If the golfer strikes the ball with a velocity of 26.5 m/s at an angle of 45.8 degrees, how far will the ball carry in the air before hitting the ground below?

**Physics**

A flatbed egg truck is in a drag race. The truck is carrying a 450 lb. crate of eggs in the back. The coefficients of friction between the crate and the truck bed are μs = 0.9 and μk = 0.4. What is the maximum acceleration the truck can have without the eggs sliding ...

**PHYSICS**

When the speed booster is set up horizontally at the edge of a table (h=1.11 m) it sends a toy car of mass m=0.06kg in the projectile motion, so that it lands at horizontal distance of x1=1.36 m away from the edge of the table. When the sam car with the same speed booster are ...

**Physics**

The essential part of the Hot Wheels speed booster is made of two fast spinning, rubberized disks of radius r=0.048 m each. The toy car entering the booster is in direct contact with both wheels, which send it away after brief encounter with it. When the speed booster is set u...

**Physics**

A 58-kg vampire and 176-kg werewolf clash during the Feat of Strength part of the annual celebration of Festivus. The werewolf velocity just before the clash is 7 m/s and is directed upwards, while the vampire velocity at the moment of the collision is 12m/s and is directed do...

**language**

sorry sweetie i got nothin but u can check out a halloween word scramble website and try 2 find the answer sheet but good luck

**language**

ummm ourland???

**language**

can u please help me unscramble this halloween word....."ouracland"

**math((PLEASE HELP!))**

7+l/5=-4 (n/-3)-2=8

**math((PLEASE HELP!))**

I just need help on the first and last problems that are bugging me

**math((PLEASE HELP!))**

Thank you , I get it now.

**math((PLEASE HELP!))**

7+l/5=-4 46-3t=-23 6+a/4=8 6h+24=0 -5b-23=9 15-3e=-6 15w-4=41 6s+3=-27 14o-17=39 n/-3-2=8

**ap chemistry**

A 4.47 g sample of a molecular compound is dissolved in 96 g of tetrachloromethane. The normal boiling point of the solution is 61.51 degrees celcius, the normal boiling point for CCl4 is 61.2 degrees celsius. The boiling point constant for CCl4 is 4.95K*kg/mol. What is the mo...

**science**

umm is all light energy from the sun?Explain<-----i hate that when you have to explaim=n

**physics**

suppose an automobile has a kinetic energy of 2900J. when it moves with 3 times the speed, what will be its kinetic energy? answer in the units of joules

**PHYSICS!**

A 8.52 -kg block of metal is suspended from a scale and immersed in water as in Figure P9.30. The dimensions of the block are 12.0 cm x 10.0 cm x 10.0 cm. The 12.0-cm dimension is vertical, and the top of the block is 9.0 cm below the surface of the water. (a) What are the for...

**science**

Thank you You find websites and answers so fast Ms.Sue Thanks for all your help Sorry if I was troubling you

**science**

how about winter boots

**science**

Ms.Sue thank you so much

**science**

thanks for the website but is there any with feet like skis.

**science**

what are animals that have feet like running shoes

**science**

Thanks Ms.Sue

**science**

what are the reasons

**science**

I don't know why animals don't have running shoes or any other types of shoes?

**science**

Running Shoes are used to protect your feet from bruises, the weather and cuts.

**science**

Why do human beings use running shoes, winter boots, snowshoes, skis and flippers? Why are these not biological adaptations? Use animals as examples. Write 4-5 sentences.

**science**

I do not understand

**PHYSICS!**

In scuba diving, a regulator is used so that the pressure of the air the diver breathes is close to that of the ambient water. A reckless swimmer decides to use a hose sticking out of the surface to breathe underwater while diving in a lake. When the air pressure in the lungs ...

**physics**

An evacuated spherical diving bell containing a camera is in the ocean at a depth of 107 m. It has a flat, transparent, circular port with a diameter of 10.5 cm. Find the magnitude of the total force on the port. For the density of seawater use 1025 kg/m3.

**physics**

Piston 1 has a diameter of 0.643 cm. Piston 2 has a diameter of 4.59 cm. In the absence of friction, determine the force required on piston 1 necessary to support an object, m, with weight 1151 N. (Neglect the height difference between the bottom of the two pistons, and assume...

**math**

Ann makes 4 signs in 1 and 1/4 hours and if he worked 6 2/8 hours how many signs can he make?

**Physics**

Astronomers can calculate the mass of a planet by using the orbital parameters of one of its moons. Consider a hypothetical planet, which has a hypothetical moon that orbits the planet in a roughly circular orbit with a radius of 3.95*10^8 m. The moon takes 12 Earth days to or...

**PHYSICS**

A block of mass 0.86 kg is suspended by a string which is wrapped so that it is at a radius of 0.061 m from the center of a pulley. The moment of inertia of the pulley is 4.60×10-3 kg·m2. There is friction as the pulley turns. The block starts from rest, and its s...

**physics!!**

The two masses (m1 = 4.96 kg and m2 = 2.90 kg) in the Atwood's machine shown in the figure below are released from rest, with m1 at a height of 0.800 m above the floor. When m1 hits the ground its speed is 0.203 m/s. Assuming that the pulley is a uniform disk with a radius...

**physics**

The wire makes a 60 degree angle from the right end of the board to the upper left. The beam is attached at a 90 degree angle to the wall on the left

**physics**

A hungry 675 -N bear walks out on a beam in an attempt to retrieve some "goodies" hanging at the end. The beam is uniform, weighs 250 N, and is 5.00-m long; the goodies weigh 110 N. When the bear is at x = 1.00 m, find the tension in the wire and the components of th...

**physics**

To determine the location of his center of mass, a physics student lies on a lightweight plank supported by two scales L = 2.44 m apart. If the left scale reads 309 N, and the right scale reads 125 N, calculate the student's mass. Calculate the distance from the student&#...

**physics**

That is exactly the way I have been doing this problem and I keep getting the wrong answer. I keep getting 2.831 m/s

**physics**

After you pick up a spare, your bowling ball rolls without slipping back toward the ball rack with a linear speed of v = 3.27 m/s To reach the rack, the ball rolls up a ramp that rises through a vertical distance of h = 0.572 m. What is the linear speed of the ball when it rea...

**Science**

Calculate the molarity of the following solution: 7.48g of calcium chloride (CaCl2) in 215 mL of aquous solution.

**Algebra 2**

consider the interior angles of the triangle with vertices p=(=4.39,-0,948) q=(3.03,8.31) r=(4.21,6.54) find the angle of the vertex of p answer in units of degrees find the angle of vertex q answer in units of degrees

**Algebra 2**

a total of $1381.8 per year is received in interest from three investments. the interest rates for the three investments are 4.9%, 7.5%, and 8.6%. the 4.9$ investment is half of the 7.5% investment and the 7.5% investment is 1400 less than the 8.6% investment. find the amount ...

**algebra 2**

find the area of the sector of the disk of radius r=16 and with arc length s=16

**math**

Perform the indicated operation. (r4 - r2 + 4) ÷ (r2 - r + 2) r² + r - 2 r² + r - 2 R -4r r² + r - 2 R -4r+8

**physics **

A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0013 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.2X10^2 ft/s, find the average force ...

**Physics **

A high-speed photograph of a club hitting a golf ball is shown in the figure below. The club was in contact with a ball, initially at rest, for about 0.0013 s. If the ball has a mass of 55 g and leaves the head of the club with a speed of 1.2 102 ft/s, find the average force e...

**physics**

a student stands on an elevator scale at rest on the 64th floor of a building. the scale reads 847 N. As the elevator moves up the scales increases to 923 N, then decreases back to 847 N. the acceleration of gravity is 9.8m/s^2. Answer in units of m/s^2

**English**

When I stay at the farm, I do many working and helping job's. Last week I rode on the high speed tractor my uncle owns By the end of the day I really enjoyes having time left for relaxation

**English**

Writing with Possessive Nouns Directions Use possessive nouns or strong nouns to replace each capital lettered phrase. EXAMPLE:THE SADDLE THAT BELONGS TO MY HORSE is made of leathe. My horse's saddle is made of leather. 1.When I stay at the farm, I do many JOBS THAT INVOLE...

**Physics**

a horizontal force of magnitude 18.0 N is applied to a 3.07 kg book as the book slides a distance d = 0.34 m up a frictionless ramp at angle è = 30°. The book begins with zero kinetic energy. What is its speed at the end of the displacement?

**Honors Algebra 2**

How do you simplify terms like 3z^2 x 2z^3?

**Social studies**

places that have the same or common characteristics are referred to as.

**physics**

An 8.82g bullet is fired into a 235g block that is initially at rest at the edge of a table of h = 1.05 m height (see the figure below). The bullet remains in the block, and after the impact the block lands d = 2.16 m from the bottom of the table. Determine the initial speed o...

**physics**

A bicycle has wheels with a diameter of 0.630 m. It accelerates uniformly and the rate of rotation of its wheels increases from 197 rpm to 300 rpm in a time of 22.5 s. Find the linear acceleration of the bicycle

**physics**

A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before reaching its final angular speed. Calculate its angular acceleration

**physics**

a 4 kg mass is dropped on a spring below. the mass falls 2 meters before stopping and the spring compresses 40 cm in the process. what is the spring constant?

**physics!!**

An 8.82g bullet is fired into a 235g block that is initially at rest at the edge of a table of h = 1.05 m height (see the figure below). The bullet remains in the block, and after the impact the block lands d = 2.16 m from the bottom of the table. Determine the initial speed o...

**physics**

A roller-coaster vehicle has a mass of 400 kg when fully loaded with passengers. r1 = 11 m and r2 = 17 m. If the vehicle has a speed of 17 m/s at A, what is the magnitude of the force that the track exerts on the vehicle at this point?

**physics**

A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before reaching its final angular speed. Calculate its angular acceleration.

**physics**

A tire placed on a balancing machine in a service station starts from rest and turns through 4.82 revolutions in 1.48 s before reaching its final angular speed. Calculate its angular acceleration.

**physics**

Which of the following correctly describe the gravitational attraction between Earth and the Moon? -The Earth and the Moon exert equal size gravitational forces on each other. -The gravitational force of the Moon on the Earth is towards the Moon. -Both the Earth and the Moon e...

**Is this right?**

I think you made a slight error in moving your variables around; the equation should look like this: 6y = 4x - 9 To have the equation in y = mx + b form, you need to make sure there is no coefficient in front of the y variable. To do this, divide both sides by 6: y = (2/3)x - ...

**General Chemistry**

What is the velocity of an electron ejected, if any, from a piece of metal whose work function is 2.227 x 10^-19 J when a photon whose wavelength is 319 nm hits the metal in a vacuum? I know the answer is 9.372 x 10^5 m/s, but I am not entirely sure of how to get to this answe...

**math**

With there being 5 shelves in the bookcase and each one taking up an inch of space inside the bookcase, there are 54 inches of space available. (59 - 5 = 54) This number is the amount of available shelf space to put books. With 5 shelves, there are 6 spaces to put books. Divid...

**English**

I'm supposed to write a two paragraph anecdote.

**English**

I need to write an anecdote, and I was wondering if my story of the flight to cancun , if that was an anecdote, or if a day in canada would be an anecdote.

**English**

Would "the flight to cancun" be an anecdote or a memoir? Would "a day in Canada" be an anecdote or a memoir?

**physics**

A 29.0 kg child slides down a long slide in a playground. She starts from rest at a height h1 of 17.00 m. When she is partway down the slide, at a height h2 of 8.00 m, she is moving at a speed of 6.90 m/s. Calculate the mechanical energy lost due to friction

**College Physics**

If the spring is compressed a distance of 0.150 m and the gun fired vertically as shown, the gun can launch a 27.6g projectile from rest to a maximum height of 16.1 m above the starting point of the projectile. Neglecting all resistive forces, determine the spring constant. De...

**PHYSICS**

Sue and Jenny kick a soccer ball at exactly the same time. Sues foot exerts a force of 40.6 N to the north. Jennys foot exerts a force of 84.8 N to the east. What is the magnitude of the resultant force on the ball. Answer in units of N. What is the direction Of the resultant ...

**PHYSICS**

Two lifeguards pull on ropes attached ton a raft. If they pull in the same direction, the raft experiences a net external force of 341 N to the right. If they pull in opposite directions, the raft experiences a net external force of 170 N to the left. Find the magnitude of the...

**Chemistry**

How many milliliters of a 0.81 M HCl solution are needed to react completely with 2.2 g of zinc to form zinc(II) chloride?

**Math**

Which one of these five words does not belong and why: Acupuncture Puppet Corpuscle Juniper Repulsion

**math**

Which one of these five words does not belong and why: Acupuncture Puppet Corpuscle Juniper Repulsion

**English**

Thank you

**English**

Which sentence contains a helping verb? A. The group of small children startled the ducklings. B. I walked to the movie theater. C. A small snake slithered across the yard. D. Sophia will be taking swimming lessons for the first time.

**math**

I disagree with all of you. Oh! Never mind I actually agree with all of you.

**science**

suspension could be oil on water and a solution could be vinegar

**dyanmics PLEASE HELP!!!**

This deals with a cam follower. The slotted bar rotates with constant angular velocity, theta=12 rad/s. The follower 'A' follows the circular cam as the bar rotates. The arm is pinned at a distance h=0.2m to the left of the cam's center. The radius of the cam is rc...

**dyanmics PLEASE HELP!!!**

LOLOLOLOL

**dyanmics PLEASE HELP!!!**

A carpenter asks his helper to toss an apple to him. The carpenter is 12 ft up and 12 ft to the right of the helper, who throws the apple at Vo=32 ft/s. There are two values of theta that cause that apple to land in the carpenters hand. What are they?

**dynamics**

A carpenter asks his helper to toss an apple to him. The carpenter is 12 ft up and 12 ft to the right of the helper, who throws the apple at Vo=32 ft/s. There are two values of theta that cause that apple to land in the carpenters hand. What are they?

**dynamics**

PLEASE HELP!

**dynamics**

This deals with a cam follower. The slotted bar rotates with constant angular velocity, theta=12 rad/s. The follower 'A' follows the circular cam as the bar rotates. The arm is pinned at a distance h=0.2m to the left of the cam's center. The radius of the cam is rc...

**US history**

The sedation Act allowed the national government to jail people for

**Chem**

There are two stable isotopes of Gallium Their masses are 68.92558 and 70.9247050 AMU. If the average atomic mass of gallium is 69.7231, what is the natural abundance of the lighter isotope? I don't know where to start!

**Chemistry**

AHH they are rounding! I feel silly.

**Chemistry**

I meant HANDS ---> INCHES --> CM

**Chemistry**

This is meant to be simple, but for some reason I'm not getting the right answer. Question is: Perhaps the most famous horse race ever in the United States was the 1938 race between two thoroughbreds, War Admiral and Seabiscuit, both of whom stood about 15 hands high. Seab...

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