A student uses a Force probe to stretch a spring, and finds that
it requires 10 N to stretch it 10 cm. The student then attaches a
1500 gram mass to the spring, and allows it to oscillate. What will
the period be?

A luge and its rider, with a total mass of 77 kg, emerge from a downhill track onto a horizontal straight track with an initial speed of 31 m/s. If a force slows them to a stop at a constant rate of 3.5 m/s2, (a)

A cord is used to vertically lower an initially stationary block of mass M = 14 kg at a constant downward acceleration of g/6. When the block has fallen a distance d = 4.9 m, find (a) the work done by the cord’s force on

When an RL circuit is connected to a battery, what percent of the final current appears at the end of the first time constant? 25% 50% 63% 100%

A 51 g Frisbee is thrown from a point 0.71 m above the ground with a speed of 11 m/s. When it has reached a height of 1.1 m, its speed is 9.4 m/s. What was the in the mechanical energy of the Frisbee-Earth

A proton moves in a circle with a speed of 580 m/s through a
uniform magnetic field of 2.0 T directed perpendicular to the
circular path. 1) What is the orbital radius of the proton in micrometers?

A homemade capacitor is made from a sandwich of a piece of paper (7.0 in. by 13 in., 0.0033 in. thick) between two equal area sheets of aluminum foil.

The flash unit in a camera uses a special circuit to “step up” the 3.0 V from the batteries to 360 V , which charges a capacitor. The capacitor is then discharged through a flashlamp. The discharge takes 12 μs , and the average power

Three equal negative point charges are placed at three of the corners of a square of side d. What is the magnitude of the net electric field at the center of the square? (k=1/4πϵ0=8.99×109N⋅m2/C2 )

a 1200-kg car moving on a horizontal surface has speed v=85 km/h when it strikes a horizontal coiled spring and is brought to rest in a distance of 2.2 m. What is the spring stiffness constant of the spring?