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The spring sends the bearing to a height of 1.27 m. Calculate the horizontal distance the ball would travel if the same spring were aimed 36.0 deg from the horizontal.
A juggler performs in a room whose ceiling is a height 3.0 m above the level of his hands. He throws a ball upward so that it just reaches the ceiling.At the instant when the first ball is at the c
If a super-ball of mass 200-g is dropped from 3 m in the air, but only bounces back 2.8 m, how much energy was lost in the collision with the ground?
Two balls are moving in the same direction. Ball A has half the mass of ball B, and is moving at twice its speed. (a) Which ball has the greater momentum?
What is the spring constant (k) of a spring if a force of 50N stretches the spring by 15 cm?
Babe Didrikson holds the world record for the longest baseball throw (296 ft) by a woman. What is the ball's initial speed?
A person driving her car at 45 approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 before turning to red, and she is 28 away from the n
A 50-kg student on a sled starts from rest at a vertical height of 20 m above the horizontal base of a hill and slides down.
A Cessna aircraft has a lift-off speed of 132 km/h. What minimum constant acceleration does this require if the air craft is to be airborne after a take-off run of 215m?
A 0.500-kg ball is thrown vertically upward with an initial speed of 10.0 m/s. If the initial potential energy is taken as zero, find the ball's
A 1200-kg automobile travels at a speed of 12 m/s.
A fun-loving 11.4 {rm kg} otter slides up a hill and then back down to the same place. If she starts up at 5.75 {rm m/s} and returns at 3.75 {rm m/s}, how much mechanical energy did she lose on the
The thermos under the professor's lectern, sneak out of the room, and await the inevitable explosion. After a few seconds have passed, what is the pressure inside the thermos?
A 2 kg ball of clay traveling west at 10 m/s collides with a 1 kg ball of clay traveling north at 5 m/s. What is the speed of the resulting ball of clay? Assume that the collision is perfectly inel
wire carries a steady current of 2.60 A. A straight section of the wire is 0.750 m long and lies along the x axis within a uniform magnetic field, = 2.00 T. If the current is in the positive x dire
A superhero flies 171 m from the top of a tall building at an angle of 31 degrees below the horizontal. What is the horizontal component of the superhero's displacement?
A 30 kg block runs into a spring with spring constant of 400 N/m and compresses it. When the compression of the spring is 50 cm the speed of the block is 2 m/s. What was the speed of the block just
Demonstrate the tremendous acceleration of a top fuel drag racer, you attempt to run your car into the back of a dragster that is "burning out" at the red light.
A simple pendulum is made from a 0.632-m-long string and a small ball attached to its free end. The ball is pulled to one side through a small angle and then released from rest. After the ball is r
A horse races once around a circular track in a time of 118s, with a speed of 17 m/s. What is the radius of the track? How do you go about solving this?
A cross of black chicken (BB) with a white chicken (WW) produces all speckled offspring (BBWW). This type of inheritance is known as what?
f1=20.0n 30 degrees , f2 =40.0n 191 degrees using the component method of vectors addition, calculate the resultant force on the car. give your answer in polar form.
George of the Jungle, with mass m, swings on a light vine hanging from a stationary tree branch. A second vine of equal length hangs from the same point, and a gorilla of larger mass M swings in the
Which of the following organisms is ost likely to be located at the apex of the pyramid biomass?
A 500 g ball moves in a vertical circle on a 50 cm-long string. When the string is horizontal the speed of the ball is 8 m/s. What is the speed of the ball at the highest point?