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A car is driven 225 km west and then 78 km southwest (45 degrees). What is the displacement of car from the point of origin (magnitude and direction).
A ball is thrown upward at a speed v0 at an angle of 50.0° above the horizontal. It reaches a maximum height of 7.5 m. How high would this ball go if it were thrown straight upward at speed v0.
How long did it take for officer to catch up to the car.
Water is in the big beaker in the figure on the left. Scale 1 reads 96 newtons, scale 2 reads 531 newtons, and scale 3 reads 0 newtons. The hanging block has a density of 10 × 10^3 kg/m3. To nearest tenth of a newton what does scale 1 read after t..
In one dimension, it is obvious that the force obeying Hook's law is conservative. Consider instead a spring that obeys Hook's law and has one end fixed at origin.
Neglect air resistance during the descent. She comes to rest 3.00 m under the surface of the water. Identify the average force that the water exerts on the diver. This force is nonconservative.
A 12.0 g bullet is fired horizontally into a 106 g wooden block that is at first at rest on a frictionless horizontal surface and connected to a spring having spring constant 143 N/m.
when 105 mL of water at 22 C is mixed with 68mL of water at 95 C, what is the final temperature? suppose no heat is lost to the surroundings and density of water is 1 g/mL.
What is the coefficient of static friction
A tow truck pulls a car 5.2 km along a horizontal roadway using a cable having a tension of 790.
What was the initial negative charge on one of the spheres, and what was the initial positive charge on the other?(Hint: Use charge conservation and solve for one of the initial charges. You will end up with a quadratic equation. The solutions giv..
Calculate the kinetic energy acquired by a 11 kg nail when it is struck by the 530 kg hammer moving with an initial speed of 4.4m/s.
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