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A train is traveling with a speed of 16.0 m/s relative to Earth. A passenger standing at the rear of the train pitches a baseball with a speed of 10.5 m/s relative to the train off the back end, in the direction opposite the motion of the train.
What is the velocity of the baseball relative to Earth?
m/s
What is the velocity of the baseball relative to the Earth if thrown in the opposite direction at the same speed?
A 0.157kg ball is thrown straight up from 1.94m above the ground. Its initial vertical speed is 9.60 m/s. A short time later, it hits the ground. What is the total work done by the force of gravity during that time.
What is a stopping distance
A mass and spring are arranged on a horizontal, The spring constant is k = 570 N/m, and the mass is 5 kg. Find the velocity of the mass when it leaves the spring
a thin converging lens is found to form an image of a distant building 24 cm from the lens. if an object is placed 16 cm from the lens, how far from the object will the image be
At a reception, a 0.5 kg chunk of ice at -10 degres Celsius is placed in 3.0 kg of "iced" tea at 20 degrees Celsius. At what temperature and in what phase will the final mixture be
A 1128 kg car and a 2210 kg pickup truck approach a curve on the expressway that has a radius of 272 m. A) At what angle should the highway engineer bank this curve so that vehicles traveling at 72.9 can safely round it regardless of the condition..
Two people, A and B, with masses of 50-kg and 60-kg, correspondingly, stand on a frictionless surface 10m apart. B pulls on a connecting rope, giving A an acceleration of 0.92m/s2 towards B. a) what is B's acceleration toward A.
What is the distance between the centers of the two slits? Describe answer in m.
Two 4.0 cm -diameter disks face each other, 1.5 mm apart. They are charged to +/- 13 nC. 1) What is the electric field strength between the disks?
An electron is accelerated by a constant electric field of magnitude 280 N/C. Find the acceleration of the electron
A 2.6kg block slides along a frictionless surface at 2.0m/s . A second block, sliding at a faster 5.0m/s, collides with the first from behind and sticks to it. What was the mass of the second block
A converging lens with a focal length of 20 cm and a diverging lens with a focal length of -70 cm are 110 cm apart. Calculate the distance between image and diverging lens
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