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Q. A thin stick of mass M = 4.3kg and length L = 1.40m is hinged at the top. A piece of clay, mass m = 0.5kg and velocity V = 0.8m/s hits the stick a distance x = 0.75m from the hinge and sticks to it. What is the angular velocity of the stick immediately after collision?
Q. The vertical component of this force is 128 newtons, as the horizontal component is 145 newtons. Calculate the magnitude of F.
You're carrying a 4.0-m-long, 25 poles to a construction site when you choose to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 from its tip. How much force should you exert to keep pole motionles..
A ladder 7.09 m long leans against the side of a building. If the ladder is inclined at an angle of 79.50° to the horizontal, what is the horizontal distance from the bottom of the ladder to the building.
What is the electric field at 9.4 cm from the central axis. What is the overall magnification of microscope.
Calculate the magnitude of the current density in the wire. Find out the work done by the hockey player on the puck. What is the change in kinetic energy of the puck.
What is average kinetic energy of each helium atom
A jogger jogs around a circular track with the diameter of 325 m in 16 minutes. What was the jogger's average speed in m/s.
In a head-on collision, the car stops in 0.23 {rm s} from a speed of 17 {rm m}/{rm s}. The driver has a mass of 77 {rm kg}, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fract..
Status Newton's First Law of motion.
A supertanker with the mass of 4.67 × 10^8 kg is moving with a constant velocity. Its engines generate a forward thrust of 8.71 × 10^6 N.
find the angle counterclockwise relative to the horizontal.
guess the force between a proton and an electron at the Bohr radius of 0.5Å (1 Å=10-10 m). The magnitude of the charge of an electron, as well as a proton, is 1.6·10-19 C.
A student has two ramps, both of which are at an angle 32°. Ramp 1 is frictionless and ramp 2 has friction. The student also has two blocks, one for each ramp.
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