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Q1. A race car has the mass of 702 kg. It starts from rest and travels 45.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?
Q2. When G was first measured by Henry Cavendish, newspapers of the time hailed his experiment as "weighing Earth experiment." And Why?
Q3. Sam, whose mass is 75.0 kg, takes off down a 57.0 m high, 13.0^circ slope on his jet-powered skis. The skis have a thrust of 230 N. Sam's speed at the bottom is 38.0 {rm m/s}. What is the coefficient of friction of snow?
A uniform disk of mass M = 5.6 kg has a radius of 0.14 m and is pivoted so that it rotates freely about its axis. What is the torque being exerted by this force about the rotation axis
In a darkened room we place a lighted tungsten bulb in a box that has one end covered with tinfoil. If we make a pinhole in the tinfoil, an image of filament appears on a screen facing the tinfoil.
A rocket is accelerating upward at 4.90m/s2 from the launchpad on the earth. If the ball is displaced 8.50 ? from the vertical and released, find the amplitude of the resulting swings of this pendulum
q1. in a head-on collision a car stops in 0.27 from a speed of 12. the driver has a mass of 76 and is fortunately
You are driving to the grocery store at 20 . You are 110 from an intersection when the traffic light turns red. Assume that your reaction time is 0.50 and that your car brakes with constant acceleration.
A 2.30-kg object attached to a spring moves without friction (b = 0) and is driven by an external force given by the expression F = 3.50sin(2(3.14)t), Find the angular frequency of the driven system
While on a camping trip, you would like to carry water from the lake to your campsite. find Which bucket holds more water
Find the maximum displacement of the 100,000 kg sace station if the astronaut's motion has an amplitude of 0.100 m.
Illustrate what current through the wire, and in which direction(LtoR OR R to L)will allow the wire to float in the magnetic field.
A block of mass 5 kg slides without friction at a speed of 8 m/s on a table, How far is the spring compressed before the masses come to a rest
A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? m (b) How long does it take to reach its highest point? s (c) How long does the ball take to hit the ground after it reaches its highest point? s (d) What is i..
A copper rod is fastened securely at both ends to immovable supports. What is the magnitude |?T| of the change in temperature of the rod when it ruptures
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