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A catapult on a cliff launches a large round rock towards a ship on the ocean below. The rock leaves the catapult from a height H = 33.0 m above sea level, directed at an angle theta = 46.9° above the horizontal, and with a speed v = 35.9 m/s. Assuming that air friction can be neglected, calculate the horizontal distance D traveled by the projectile.
What is the radius r of the turn if theta = 20.0 degrees (assuming the car continues in uniform circular motion around the turn).
An asteroid is discovered heading straight toward Earth at 13km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 mins, after which the asteroid is moving at 28 degrees to its original path at a..
Suppose that you wish to fabricate a uniform wire out of 1.00 g of copper. Assume the wire has a resistance R = 0.700 , and all of the copper is used. Illustrate what will be the length of the wire?
What force is exerted by the water on the window of an underwater vehicle at this depth if the window is circular and has a diameter of 37.9 cm
In the diagram below, a student compresses the spring in a pop-up toy 0.020 meter. how much energy, in Joules, is being stored in the spring
What is the half-life in days of a radioactive sample with 5.2×1015 atoms and an activity of 5.1×108Bq ? What is the half life in days
Two equally charged insulating balls each weigh 0.26 g and hang from a common point by identical threads 25 cm long. find the magnitude of the charge on each ball
Two children with masses of 24 and 31 kg are sitting on a balanced seesaw. If the lighter child is sitting 3 m from the center, where is the heavier child sitting
the coefficient of static friction is 0.26. If you apply the minimum force needed to get the refrigerator to move, illustrate what will the acceleration then be?
A man claims that he can hold onto a 16.0-kg child in a head-on collision as long as he has his seat belt on. Find the magnitude of the average force needed to hold onto the child
A capacitor is connected across an ac generator whose frequency is 746 Hz, What is the magnitude of the maximum charge on one plate of the capacitor
Let's build a helium atom. Start with a nucleus with 2 protons and 2 neutrons, Calculate the energy gained by the system constructing this atom
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