Thursday

August 27, 2015
Number of results: 60,636

**Algebra 2**

Mrs. Burnett throws a ball innthe air with an initial velocity of 96 feet per second. The function f(t) = 96t - 16t^^2 represents the path of the ball. How high will the ball go? How long will it take the ball to reach the ground?
*October 29, 2014 by Olivia*

**Physics**

A ball rolls off a 3.5 m high box with a velocity of 4m/s. How long does it take to reach the floor and how far from the box does it land?
*January 9, 2011 by Mary*

**physics**

1. A baseball rolls off a 0.80 m high desk and strikes the floor 0.25 m away from the base of the desk. How fast was the ball rolling?
*August 31, 2011 by viyanah*

**Physics**

At the 18th green of the US Open, Tiger Woods needs to make a 20.5 ft (6.25 m) birdie putt to win the tournament. When he hits the ball, giving it an initial speed of 1.57 m/s, it stops 6.0 ft. (1.83 m) short of the hole. Assume the deceleration caused by the grass is constant...
*September 15, 2013 by Tonya*

**psychics **

you throw a ball straight upward into the air with a velocity of 20.0 m/s, and you catch the ball some time later. a) how long is the ball in the air b)how high does the ball go c) what is the balls velocity when you catch it I don't get how you are suppose to figure this out ...
*August 20, 2015 by Maddie *

**Physics **

Instead of standing in the back of the lane and rolling the ball toward the pins like most people, you place a 5kg bowling ball at rest at the back of the lane and try to hit it toward the pins with a perfectly elastic collision using a 1kg ball rolling at 5 m/s from a 25 ...
*May 2, 2014 by Michelle*

**physics**

A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 7.84 s. What is its initial velocity? Neglect air resistance.
*September 18, 2012 by gary*

**Physics**

A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 7.99 s. What is its initial velocity? Neglect air resistance.
*August 31, 2013 by RW*

**Physics**

A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 7.99 s. What is its initial velocity? Neglect air resistance.
*August 31, 2013 by WR*

**Physics**

A ball is thrown vertically upward, which is the positive direction. A little later it returns to its point of release. The ball is in the air for a total time of 8.11 s. What is its initial velocity? Neglect air resistance.
*April 7, 2015 by Sandra*

**Physics**

A cannon ball is fired at 50 m/s at a 37 degree angle above the horizontal. Calculate the time the cannon ball in the air, calculate how high it rises and calculate how far from the cannon the ball lands? Answers: 6.14 s, 46.2 m, 245.2 m
*November 13, 2012 by Victoria*

**Physics **

Rubber Band A 156 g hockey puck is attached to a rubber band and rotated with an angular speed of 9.8 rad/s on frictionless horizontal ice. It takes a force of 1.12 N to stretch the rubber band by 1 cm. (a) If the original length L of the rubber band is 1 m, by how much (in m...
*December 3, 2010 by Help*

**Physics**

A ball is thrown straight upward. At 6.30 m above its launch point, the ball’s speed is one-half its launch speed. What maximum height above its launch point does the ball attain?
*September 12, 2013 by Briana*

**phyics**

A ball is thrown straight upward. At 5.00 m above its launch point, the ball’s speed is one-half its launch speed. What maximum height above its launch point does the ball attain?
*October 20, 2013 by Johnny*

**physics**

A ball is thrown straight upward. At 4.36 m above its launch point, the ball's speed is one-half its launch speed. What maximum height above its launch point does the ball attain?
*September 21, 2014 by ryan*

**physics**

A white billiard ball with mass mw = 0.1 kg is moving with a speed of v = 0.5 m/s making angle 60 degree and collides with a black billiard ball with the same mass mb = 0.1 kg that is initially at rest. The distance between the black ball and the pocket is 10cm\ friction exist...
*November 20, 2014 by rayan*

**physics**

An athlete at the gym holds a 4.33 kg steel ball in his hand. His arm is 75.0 cm long and has a mass of 5.28 kg. What is the magnitude of the torque about his shoulder if he holds his arm straight out to his side, parallel to the floor? Responses Physics - bobpursley, Saturday...
*October 12, 2008 by Sara*

**AP Physics**

A ball is thrown horizontally from the top of a building 51 m high. The ball strikes the ground at a point 120 m from the base of the building. The acceleration of gravity is 9.8 m/s 2 Find the x component of its velocity just before it strikes the ground. Answer in units of m...
*September 11, 2012 by Noah*

**physics**

A ball has a mass of 0.14 kg and is pitched w/ velocity of 38 m/s. The batter hits the ball & departs w/ a velocity of 58 m/s. Contact time b/w the bat and ball is 4.0 x 10-3seconds. What is avg force exerted on ball?
*December 11, 2010 by jennifer*

**physics**

a .50 kg ball traveling at 6.0 m/s collides head on with a 1.0 kg ball moving in the opposite direction at a velocity of -12.0 m/s. The .50 kg ball moves away at -14 m/s after the collision. Find the velocity of the second ball.
*January 31, 2011 by willy n*

**Science: Phsycs**

A baseball player swings his 2 kg bat with a speed of 15 m/s. They hit a 0.142 kg baseball which was approaching at a speed of 40 m/s. the ball rebounds in the other direction at 45 m/s. If the baseball and bat are in contact for 5 ms, what is the average force the bat exerts ...
*October 25, 2011 by Mariah*

**Math**

When a cue ball strikes another ball, what is the largest possible angle the struck ball can be deflected from the line along which the cue ball was travelling?
*July 22, 2014 by Nic*

**physics**

A 150-kg ladder leans against a smooth wall, making an angle of 30 degrees with the floor. The centre of gravity of the ladder is one-third the way up from the bottom. How large a horizontal force must the floor provide if the ladder is not to slip?
*October 7, 2011 by lawrence*

**phy**

A 150-kg ladder leans against a smooth wall, making an angle of 30 degrees with the floor. The centre of gravity of the ladder is one-third the way up from the bottom. How large a horizontal force must the floor provide if the ladder is not to slip?
*August 13, 2014 by samson*

**Physics**

A golf ball is struck by a golf club at 55 m/s at an angle of 28.0o above the horizontal. The mass of the ball is 45 grams and is in contact with the golf club for 1.5 m/s. Calculate the average force exerted on the ball by the club.
*May 26, 2014 by Joe*

**Physics**

a basketball player is trying to make a half-court ump shot and releases the ball at the height of the basket. assuming that the ball is launched at 51 degrees, 14 m from the basket, what speed must the player give the ball?
*April 18, 2010 by JJ*

**Physics**

You are hitting a tennis ball against a wall. The 0.057-kg tennis ball traveling at 29 m/s strikes the wall and rebounds at the same speed. Earth is the object of reference. Determine the ball's change in momentum (magnitude).
*February 12, 2015 by Anonymous *

**Physics**

A 7.50 kg bowling ball strikes a stationary 4.50 kg bowling ball. After the collision, the 4.50 kg ball is traveling 8.50 m/s 30.0° east of north; the 7.50 kg ball is traveling 6.50 m/s 20.0° south of east. What was the initial velocity (magnitude and direction) of the 7.50 kg...
*June 12, 2014 by Anonymous*

**college physics**

Now assume that the pitcher throws a 0.145 kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The batter then hits the ball so it goes directly back to the pitcher along the same straight line. What is the ball's velocity just after leaving the bat ...
*March 11, 2010 by Anonymous*

**Science**

Describe the total momentum of billiard balls before and after the cue ball collides with another ball
*February 28, 2015 by John*

**Physics**

Equate the increase in potential energy at the higher elevation, M g H, to the decrease in kinetic energy. Make sure you include the kinetic energy of rotation, which is (1/2) I w^2. For a sphere of radius R, V = R w and I =(2/5) I R^2 Therefore KE(rotational) = (1/2)(2/5)M R^...
*March 21, 2007 by drwls*

**physics**

A bowling ball weighing 71.8 N is attached to the ceiling by a rope of length 3.83 m. The ball is pulled to one side and released; it then swings back and forth as a pendulum. As the rope swings through the vertical, the speed of the bowling ball is 4.50 m/s. What is the ...
*September 23, 2010 by ami*

**PHYSICS PLEASE HELP!!**

A tennis ball of mass= 0.058 kg and speed= 19 m/s strikes a wall at a 45 degree angle and rebounds with the same speed at 45 degrees. What is the magnitude of the impulse given to the ball?
*November 20, 2011 by Mel*

**Physics**

A batted baseball leaves the bat at an angle of 30.0 degrees about the horizontal and is caught by an outfilder 375 ft from home plate at the same height from which it left the bat. (a) what was the initial speed on the ball? (b) how high does the ball rise about the point ...
*June 4, 2009 by Sarah*

**physics**

A batted baseball leaves the bat at an angle of 26.0^\circ above the horizontal and is caught by an outfielder 355{\rm ft} from home plate at the same height from which it left the bat. What was the initial speed of the ball? How high does the ball rise above the point where ...
*January 26, 2013 by anonymous*

**physics**

A batted baseball leaves the bat at an angle of 33.0∘ above the horizontal and is caught by an outfielder 380ft from home plate at the same height from which it left the bat. 1. What was the initial speed of the ball? 2. How high does the ball rise above the point where ...
*February 14, 2015 by chibest *

**Physics/Math**

A 3.0 kg block, initially in motion, is pushed along a horizontal floor by a force F of magnitude 18 N at an angle = 45° with the horizontal. The coefficient of kinetic friction between the block and floor is 0.25. (Assume the positive direction is to the right.) Calculate the...
*February 10, 2007 by COFFEE*

**physics**

A golf ball is thrown at an angle of 37 degree with horizontal with initial speed of 50 m/s. what is the maximum horizontal distance???
*August 24, 2012 by Hanan*

**physics**

A golf ball is thrown at an angle of 37 degree with horizontal with initial speed of 50 m/s. what is the maximum horizontal distance???
*August 24, 2012 by help urgent Hanan*

**Physics**

A woman, driving a golf ball off a tee, gives the ball a velocity of 28.0 m/s. The mass of the ball is 0.045 kg, and the duration of the impact with the golf club is 6 x 10-3 s. 3a. What is the change in momentum of the ball
*April 13, 2010 by Arnold Manguy*

**physics**

You push against a steamer trunk at an angle of 33° with the horizontal . The trunk is on a flat floor and the coefficient of static friction between the trunk and floor is 0.55. The mass of the trunk is 43 kg. What is the minimum magnitude of force that will allow you to move...
*June 23, 2015 by alex*

**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 (pulling ...
*February 17, 2014 by may *

**Physics**

A 1000N crate is being pushed across a level floor at a constant speed by a force F of 300N at an angle of 20.0 degrees. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 300-N force is instead pulling the block at an angle of 20.0 ...
*November 14, 2013 by DROSP*

**Physics**

A 1000N crate is being pushed across a level floor at a constant speed by a force F of 300N at an angle of 20.0 degrees. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 300-N force is instead pulling the block at an angle of 20.0 ...
*November 15, 2013 by DROSP*

**physics**

A 1,440-N crate is being pushed across a level floor at a constant speed by a force vector F of 380 N at an angle of 20.0° below the horizontal, as shown in the figure (a) below. (a) What is the coefficient of kinetic friction between the crate and the floor? μk = Correct...
*October 12, 2012 by Uzy*

**Math**

A baseball player hits a baseball into the outfield. The equation h= -0.005x^2 +x+3 give the path of the ball, where (h) is the height and (x) is the horizontal distance the ball travels. An outfielder catches 3 ft above the ground. How far has the ball traveled horizontally ...
*October 20, 2011 by Vanessa*

**physics **

A person at the roof of a high building has projected a ball at velocity 50m/s given that the acceleration due to gravity = 10 the displacement and velocity when : The ball has been protected upwards with angle 30 to the horizontal. And when the ball been projected ...
*January 8, 2015 by Youssef ismail*

**physics**

To keep homerun records and distances consistent from year to year, organized baseball randomly checks the coefficient of restitution between new baseball and wooden surface similar to that of of an average bat. Suppose you are in charge of making sure that no "juiced" ...
*October 29, 2009 by Ryan*

**physics**

a ball is thrown upward. its initial verticle component of velocity is 10 m/s and its initial horizontal component of velocity is 2 m/s. what is the ball's speed 10 s later?
*November 3, 2009 by Stephanie*

**physicsss**

A cable attached to a block of mass 11 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 5.3 N, what is the coefficient of kinetic friction between the block and the floor?
*February 14, 2009 by kj*

**Physics**

A cable attached to a block of mass 14 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 5.4 N, what is the coefficient of kinetic friction between the block and the floor?
*September 11, 2011 by Heather *

**Physics**

A 3.4 kg block is pushed along a horizontal floor by a force of magnitude 21 N at a downward angle θ = 40°. The coefficient of kinetic friction between the block and the floor is 0.26. What the magnitude of the block's acceleration?
*October 23, 2011 by Tom*

**Physics**

A cable attached to a block of mass 8 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 5.3 N, what is the coefficient of kinetic friction between the block and the floor?
*June 20, 2012 by Sierra*

**Physics**

A dart gun is located 1 meter above the floor and is fired horizontally. the dart travels a horizontal distance of 4 meters when it hits the floor. what is the initial velocity if the dart when fired?
*March 5, 2013 by ryan*

**Physics- Mechaincs**

A home run is hit such a way that the baseball just clears a wall 27 m high located 147 m from home plate. The ball is hit at an angle of 37◦ to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 1 m above the ground. The acceleration...
*September 17, 2010 by Genevieve*

**physics**

A 0.025 kg golf ball moving at 27 m/s crashes through the window of a house in 5.0 10-4 s. After the crash, the ball continues in the same direction with a speed of 10 m/s. Assuming the force exerted on the ball by the window was constant, what was the magnitude of this force?
*January 25, 2011 by jesse*

**Physics**

A 0.026 kg golf ball moving at 19.6 m/s crashes through the window of a house in 5.6 10-4 s. After the crash, the ball continues in the same direction with a speed of 8.2 m/s. Assuming the force exerted on the ball by the window was constant, what was the magnitude of this ...
*March 17, 2013 by Anonymous*

**Physics**

A ball moving with a speed of 9 m/s strikes an identical stationary ball such that after the collision the dierection of each ball makes an angle of 30° with the original line of motion. Find the speeds of the two balls after the collision.
*September 20, 2014 by Saiffah*

**physics**

In being served, a tennis ball is accelerated from rest to a speed of 25.5 m/s. The average power generated during the serve is 2920 W. Assuming that the acceleration of the ball is constant during the serve, find the force acting on the ball.
*February 23, 2015 by Anonymous*

**Science **

in a cricket match a spin bowler bowls a ball from one end of the pitch to rough spot on the pitch which is 18.6 metres from where he lets go of the ball if the ball takes 1.4 seconds to hit the spot calculate its average speed
*August 25, 2015 by Jaye*

**Physics**

You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 8.0 m/s. (a) How much time does it take for the tennis ball to reach its maximum height? (b) What is the maximum height above ...
*September 6, 2014 by John*

**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?
*November 4, 2012 by emily*

**physics**

a spring loaded "cannon" on a wheeled car fires a metal ball vertically. the car is given a push and set in motion horizontally with a constant velocity. A pin is pulled with a string to launch the ball, which travels upward and then falls back into the moving cannon everytime...
*January 1, 2008 by melissa*

**Probability**

An urn contains a red ball, a blue ball, an orange ball, and a yellow ball. A ball is chosen one at a time then replaced. This is done 4 times. What is the probability one of each color is chosen?
*September 11, 2012 by Alex*

**physics**

A boy throws a ball straight up into the air so that it leaves his hand at 11 m/s. If the ball has mass 0.15 kg and the boy's arm moved through 1.5 m as he threw the ball, then what average force did he exert on the ball?
*March 8, 2015 by Anonymous*

**physics**

a ball is thrown vertically into the air because of air resistance its speed when it returns to its staring level compared to it initial speed is what?
*February 6, 2011 by Anonymous*

**Physic**

A 135 g baseball traveling at a speed of 36 m/s hits a bat and moves back along its incoming trajectory with a speed of 47 m/s. a) What is the impulse delivered to the ball by the bat? (Answer: 11.2kg * m/s) b) If the duration of the bat-ball collision is 7 x 10^-4s, what is ...
*April 22, 2014 by Anonymous*

**PHYSICS HELP!!**

#2.) Draw a free body diagram for the following situation: a.) A 0.15 kg running shoe is pushed to the right, with a constant velocity, across a wet concrete floor with an applied force of 3.5 N. b.) Calculate the normal force exerted by the concrete onto the running shoe.
*February 5, 2013 by AMANDA*

**Physical Science**

Four balls are dropped from a platform, 20 meters high. One ball is 5k, the other is 10kg, then 20kg, and 40kg. Which ball will experience the GREATEST change in kinetic energy, from platform to ground?
*May 3, 2011 by MadiShiley*

**physics**

A golf ball threw by a friend from a window of her apartment collides with a rock that you throw at the same moment at x=44.07m and y=13.63 m, and t=2.56 s. If the ball was dropped from a height of h=45.78 m, determine the initial velocity of the rock(write de x- and y- ...
*February 28, 2012 by abad*

**Alegbra**

As you are leaving the community, you notice another new community just down the street. Because you are in the area, you decide to inquire about it. a)The sales representative here tells you they also have two floor plans available, but they only have 38 homes available. ...
*July 18, 2009 by Dolores*

**Physics **

Suppose that the gravitational acceleration on a certain planet is only 3.1 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 25 m/s. (a) What is the velocity of the ball 4 seconds after it is thrown? m/s (b) How much time...
*February 13, 2013 by Jordan *

**Physics**

Suppose that the gravitational acceleration on a certain planet is only 3.1 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 35 m/s a) What is the velocity of the ball 4 seconds after it is thrown? m/s (b) How much time ...
*September 7, 2013 by Heather*

**physics**

A golf bounces down a flight of steel stairs, striking several steps on the way down, but never hitting the edge of a step. The ball starts at the top step with a vertical velocity component of zero. If all the collisions with the stairs are elastic, and if the vertical height...
*October 5, 2009 by Treb*

**Physics(IMPORTANT)**

A small ball of mass m=0.60 kg hangs from a massless string of length l=0.9 m. The ball travels in a vertical circle and its speed at the bottom is v0=6.0 m/s (see figure). Neglect all friction and air drag, and use g=10m/s^2 for the gravitational acceleration. The ball is so ...
*November 1, 2013 by keitanako*

**Physics**

I fire a tennis ball from an air cannon, straight up from ground level, at initial speed v0. At the instant it reaches the top of its trajectory, I fire a second tennis ball at the same initial speed. Air resistance is negligible. At what fraction of the maximum height reached...
*February 10, 2011 by Cecille*

**Physics**

I fire a tennis ball from an air cannon, straight up from ground level, at initial speed v0. At the instant it reaches the top of its trajectory, I fire a second tennis ball at the same initial speed. Air resistance is negligible. At what fraction of the maximum height reached...
*February 12, 2011 by Cecille*

**math**

The cup on the9th hole of a golf course is located dead center in the middle of a circular green that is70 feet in diameter. Your ball is located as in the picture below: The ball follows a straight line path and exits the green at the right-most edge. Assume the ball travels ...
*October 1, 2011 by Basit*

**Physics**

My problem question: "A ball is thrown up onto a roof, landing 4.0 seconds later at a height of 20.0 m above where it was thrown. The ball's velocity vector upon landing on the roof top was angled 60 degrees to the horizontal flat roof top. Find the horizontal distance that ...
*October 7, 2010 by Thuy*

**Physics**

A 15.0 g rubber bullet hits a wall with a speed of 140 m/s. If the bullet bounces straight back with a speed of 125 m/s, what is the change in momentum of the bullet?
*November 24, 2010 by Kelsey*

**physics**

a spring with a k=225 N/m is attached to a ball (m=1.00kg) on a horizontal frictionless table. The ball is pulled 15.0 cm to the right and then released: Find f
*January 25, 2015 by michael *

**physics**

A 650g ball on the end of a light rod is rotated in a horizontal circle of 1.2m radius.Calculate the torque needed to keep the ball rotating if the air resistance exerts a force of .02N on the ball. Ignore the moment of inertia and the air resistance of the rod.
*March 27, 2011 by Mark*

**physics**

A 80kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the .43kg ball at the peak of his jump, when he is 17.2 inches off the ground. He hits the ground 1.61 inches away from where he leapt. If the ball was moving ...
*November 17, 2012 by Ashley*

**Physics**

A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. He catches the 0.430 kg ball precisely at the peak of his jump, when he is 19.2 inches off the ground. He hits the ground 1.61 inches away from where he leapt. If the ball ...
*November 19, 2012 by Kyle*

**physic **

A ball is thrown toward a cliff of height h with a speed of 28m/s and an angle of 60∘ above horizontal. It lands on the edge of the cliff 3.3s later. a) How high is the cliff? i got -29.2 m but my answer is wrong b) What was the maximum height of the ball? im not sure ...
*October 21, 2014 by sara*

**math**

An object that is falling or vertically projected into the air has it height, in feet, above the ground given by the formula below, where s is the height in feet, Vo is the original velocity of the object, in feet per second, t is the time the object is in motion in seconds, ...
*March 22, 2013 by pam*

**physics**

A billiard ball of mass m = 0.250 kg hits the cushion of a billiard table at an angle of θ1 = 70.0° at a speed of v1 = 2.50 m/s. It bounces off at an angle of θ2 = 63.0° and a speed of v2 = 2.10 m/s.
*April 2, 2014 by Anonymous*

**10th grade**

A soccer player kicka a ball with an initial velocity of 10 meters per second at an angle of 30 degress above the horizontal. the magnitude of the horizontal component of the ball's initial velocity is
*October 3, 2010 by elana*

**physics**

I'm supposed to design a device that will protect a raw egg, GRADE A, (not that its really important to know what kind of egg it is... LOL) But, it will drop from a 12 FOOT height to a concrete floor. The only materials that I'm allowed is about 9 sheets of "8.5 X 11" paper or...
*October 13, 2006 by ♫αƒℓ ♥ ℓιηєя♫*

**physics**

Is it impossible to lose all of the kinetic energy in a collision? Or, does a ball which bounces several times before eventually coming to rest show how kinetic energy can completely disappear?
*November 13, 2009 by Student*

**physics**

A wooden box weighing 281 N is pushed across the floor by a workman who exerts a horizontal force of 166 N. If the force of friction between the box and the floor is 21 N, what is the acceleration (in meters/second^2) of the box?
*March 8, 2011 by nm*

**physics**

wooden box weighing 271 N is pushed across the floor by a workman who exerts a horizontal force of 144 N. If the force of friction between the box and the floor is 28 N, what is the acceleration (in meters/second^2) of the box?
*March 1, 2012 by Anonymous*

**physics**

A wooden box weighing 271 N is pushed across the floor by a workman who exerts a horizontal force of 144 N. If the force of friction between the box and the floor is 28 N, what is the acceleration (in meters/second^2) of the box?
*March 7, 2012 by phil*

**stat probability**

An apartment building has the following apartments: 2 bdrm 3 bdrm 4 bdrm 1st floor 7 3 4 2nd floor 9 0 11 3rd floor 8 4 7 If an apartment is selected at random, what is the probability that it is a 2 bedroom apartment on the 3rd floor?
*April 8, 2013 by Lynn*

**Physics**

A basketball player is trying to make a half-court jump shot and releases the ball at the height of the basket. Assuming that the ball is launched at 51 degrees, 14.0 m from the basket what speed must the player give the ball? So far I found the Vy to be 8.55 m/s...but I don't...
*November 16, 2009 by emm*

**Physics 103**

You're squeezing a springy rubber ball in your hand. If you push inward on it with a force of 1 N, it dents inward 2 mm. How far must you dent it before it pushes outward with a force of 3 N?
*September 24, 2014 by Molly*

**college physics**

a tennis ball is thrown straight up with an initial velocity of 22.5 m/s. it is caught at the same distance above the ground. a). how long does it take to reach its maximum height? b). how high does the ball rise? c). at what speed does it hit the ground? d). what total length...
*April 2, 2013 by confused*

**Precal**

Suppose that Tiger hit a golf ball with an initial velocity of 150 ft/sec at an angle of elevation of 30°. Write the parametric equations to represent the flight of the ball. How long is the golf ball in the air? Determine the distance the ball traveled. When is the ball at ...
*May 26, 2014 by jessica*

**Physics**

A 51.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are 0.710 and 0.440, respectively. (a) What horizontal pushing force is required to just start the crate moving? N (b) What horizontal pushing force is required to slide ...
*September 17, 2007 by NHS*

**Algebra**

A ball is thrown into the air. The height h, in feet, of the ball can be modeled by the equation h= -16t^2+20t+6, where t is the time, in seconds, the ball is in the air. When will the ball hit the ground? first should I use x= -b/2a?
*June 6, 2013 by Casey*