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A 715 N man stands in the middle of afrozen pond of radius 5O m He is unableto get to the other side because of a lack of friction between hisshoes and the ice To overcome this difficulty, he throws his 1.2kg physics textbook horizontally toward the north shore at a speedof 5.0 m/s. How long does it take him toreach the south shore.
A 1000kg car moving at 40mph hits a 750 kg parked car. If they move off locked together after the collision how fast are they moving
A television is tuned to a station broadcasting at a frequency of 7.00×10^7Hz . For best reception, the rabbit-ear antenna used by the TV should be adjusted to have a tip-to-tip length equal to half a wavelength of the broadcast signal.Find the op..
A bullet of mass 0.012 kg traveling horizontally at a high speed of 280 m/s embeds itself in a block of mass 3 kg that is sitting at rest on a nearly frictionless surface. Calculate the total translational kinetic energy
An ideal Carnot engine operates among 455C and 130C with a heat input of 240J per cycle. How much heat is delivered to the cold reservoir in each cycle? What minimum number of cycles are necessary for the engine to lift a rock of mass 430 kg during a..
Assume that while moving into an apartment you move a refrigerator into place by sliding it across the floor. The refrigerator weighs 1452 N and the coefficient of static friction among the floor and the refrigerator is 0.46. What is the least force ..
A crate is sliding down a ramp that is inclined at an angle of38.0o above the horizontal. Find the acceleration of the moving crate
Mars has two small moons orbiting around it (Deimos and Phobos). Determine the approximate orbital period of Deimos
Points A, B, and C are at the vertices of an equilateral triangle.A certain positive charge q placed at A produces anelectric field of magnitude 235 N/C at C.Suppose a second, identical charge is placed at B. What is themagnitude of the new electric ..
an 11.0 m 230 n uniform ladder rests against a smooth wall. the coefficient of static friction between the ladder and
During an etiquette class, you walk slowly and steadily at 0.20 {\rm{ m/s}} for 2.5 {\rm m} with a 0.75 {\rm kg} book balanced on top of your head
how many joules of potential energy does 1.5-kg book gain when it is elevated 2 m? when it is elevated 4 mlet g 10
A 1.00 -diameter vat of liquid is 2.90 m deep. The pressure at the bottom of the vat is 1.50atm. What is the mass of the liquid in the vat
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