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A 18 g rifle bullet traveling 230 m/s buries itself in a 3.6 kg pendulum hanging on a 2.8 m long string, which makes the pendulum swing upward in an arc. Determine the horizontal component of the pendulum's displacement.
At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting stretch. find the speed of the sled right before the team jumps on the sled
Two charges, q1 and q2, are separated by a distance, r, and exert a force, F, on each other. What will the new force be if:
A heat engine operates between a cold reservoir at 10 C and a hot reservoir at 200 C. how much heat must be exhausted as waste
A traveler first drives 19.4 km east, then 29.7 km southeast, and finally 9.9 km south. Find the traveler's total displacement
A student in a parked car honks the horn, which has a `proper' frequency of 310 Hz. Calculate the speed of the approaching vehicle
If a person of mass M simply moved forward with speed V, his kinetic energy would be1/2 MV^2. However, in addition to possessing a forward motion, What is the average angular velocity of his arms and legs
How much time is the stone in the air
An ultraviolet lamp emits light of wavelength 400nm at the rate of400W. An infrared lamp emits light of wavelength 700nm, also at therate of 400W. Which lamp emits photons at the greater rate
In exercise physiology studies, it is sometimes important to determine the location of a person's center of gravity. How far from the woman's feet is her center of gravity
A nail gun fires a nail into a piece of wood. The nail is going a velocity of 6.8 m/s right before entering the wood. The mass of the nail is .06kg. what is the average force on the nail by the wood
A box of mass m, is released from rest and slides down a 3 m high frictionless chute. What is there common speed after the collision
what is the combined mass of the dog and basket.
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