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An 859 kilogram car is traveling 56 mph while taking a cloverleaf exit that has a radius of 41.2 meter. Calculate the centripetal acceleration of the car and the centripetal force on the car. Memorize that 1 mph = 0.447 m/s.
Centripetal acceleration = m/s2
Centripetal force = N
A roller-coaster car moves 192 ft horizontally and then rises 144 ft at an angle of 30° above the horizontal. It then travels 144 ft at an angle of 40° downward. What is its displacement from its starting point? Use graphical techniques. (Do this on ..
A man in a restaurant asked a waiter for a juice glass, a dinner plate, water, a match, and a lemon wedge. How did the waiter get the water into the glass
If the spring constant k = 5.0\times 10^2 \rm \;{N/m}, the baby has a mass m = 11\;{\rm kg}, and the baby's legs reach a distance d = 0.15\; \rm m from the bouncer, what should be the height h of the "empty" bouncer above the floor?
Describe the energy of a car driving up a hill. a. entirely kinetic b. entirely potential c. both kinetic and potential d. gravitational e. elastic Explain why
According to the law of universal gravitation, what will happen to Earth if the Sun were somehow replaced by the black hole of same mass.
A cylindrical hoop and a spherical shell both roll without slipping and both have identical masses (6 kg) and identical radii (0.2 m). What is the velocity of each at the bottom of the hill
Calculate the semimajor of a moon on a synchronous orbit around Mars. Express your answer in martian radii (Rmars) from the center of the planet. compare this distance with the orbits of phobos (at 2.76 Rmars) and Deimos (at 6.9 Rmars).
An electron travelling east with velocity 7.0 x10^5 m/s enters the same electric field region as in the previous problem. How far does it go before being turned backward
An Argon ion laser has a gain bandwidth of 2 GHz. Find the number of standing wave cavity modes within the gain bandwidth of the argon ion laser
object o1 is 15.2 cm to the left of a converging lens with a 11.8-cm focal length. a second lens is positioned 10.0 cm
for a single isolated point charge carrying a charge of q 68.7 pc one equipotential surface consists of a sphere of
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 500-g sample of silver at an initial temperature of 85°C is placed in the water. Calculate the mass of the aluminum cup
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