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Suppose you are accelerating at 3 m/s2.
a. If you start from rest, how much time will it take to have a velocity of 96 m/s?
b. How far will you travel in this time?
A uniform rod of mass 3.05×10^-2?2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center, compute the angular speed of the rod after the rings leave it
Observer A, who is at rest in the laboratory, is studing a particle that is moving through the laboratory at a speed of 0.624c. how far apart are the two markers in the laboratory
Find the electric field at the center of a square of side d = 1.0 cm with charges of q = +9.0 µC at each corner
A 0.55 kg air cart is attached to a spring and allowed to oscillate. You are given the displacement of the air cart from equilibrium to be x = (19.7 cm) cos[(2.64 s-1)t + ?]. Find the maximum kinetic energy of the cart
An object falls off of a pier and into the ocean (sea water) where it displaces a total volume of 1.6 cubic meters of sea water. What is the buoyant force acting on the object
Two crates, of mass 75.0 kg and 109 kg, are in contact and at rest on a horizontal surface. A 732 N force is exerted on the 75.0 kg crate. What is the force the each crate exerts on the other.
Two steel wires of the same length, one with radius r and the other with radius 2r, are connected together, end to end, and tied to a wall. How far does the point where the two wires meet move
The cheetah can reach a top speed of 114 km/h (71 mi/h). While chasing its prey in a short sprint, Determine the cheetah's average acceleration during the short sprint
A balloon is filled with helium at a pressure of 2.3×105 Pa. The balloon is at a temperature of 14ºC and has a radius of 0.27 m. How many helium atoms are contained in the balloon
Three polarizing plates whose planes are parallel are centered on a common axis. The directions of the transmission axes relative to the common vertical direction, Calculate the transmitted intensity
If an average frequency emitted by a 200,-,rm W light bulb is 5.00 times 10^{14} , {rm Hz}, and 10.0 percent of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second .
You are trying to overhear a juicy conversation, but from your distance of 15m. It sounds like only an average whisper of 20 dB. So you decide to move closer to give the conversation a sound level of 60 dB instead. How close must you come.
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