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An antelope moving with constant acceleration covers thedistance 75.0 m between two points in time 6.00 s. Its speed as it passes the second point is 15.8 m/s.
a) What is its speed at the first point?
b) What is the acceleration?
A box at rest has the shape of a cube 3.5m on a side. This box is loaded onto the flat floor of a spaceship, What is the volume of the box as we observe it
A mass of 1.0 kg is pushed against a spring with a spring constant of 25 N/m. What is the kinetic energy of the mass after the mass is released and it is no longer in contact with the spring
The initial velocity of a car is vi=45km/hr in the positive x-direction. The final velocity of the car, vf is 66km/hr in a direction that points 75 (degrees) above the x-axis. Find the magnitude and direction of the change in velocity
A 100kg mass is on an inclined plane of 30 degrees. It's connected to a second unknown mass that hangs over a frictionless pulley. What is the unknown mass required to maintain an acceleration down the place of 1m per sec
A pendulum is constructed by attaching a small metal ball to one end of a 1.25 m long string that hangs from the ceiling. the ball is released when it is raised high enough for the string to make an angle of 30.0 degrees with the vertical. how fast i..
Landing on the Moon, a spacecraft fires its retrorockets and comes to a complete stop just 19m above the lunar surface. It then drops freely to surface.How long does it take to fall in seconds? What is its impact speed in meter per seconds.
A student decides to spend spring break by driving 50miles dues east, then 50miles 30degrees south of east, How far will he drive, and how many vectors must he sum to calculate his displacement
A mass-spring system oscillates with period of 0.23 sec. The spring's spring constant k = 450 N/m. What mass is attached to the spring
A capacitor has circular plates of radius 10 cm separated by 1 mm. If the capacitor is connected to a 12 volt battery, What will be the charge on the capacitor
To stretch a certain spring by 2.50cm from its equilibrium position requires 9.00J of work, What was the maximum force required to stretch it by that distance
A solid block is suspended from a spring scale. When the block is in air, the scale reads 37.1 N, when immersed in water the scale reads 32.2N, What is the density of the oil
Express the power in terms of some or all of the variables given in the problem introduction.
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