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Question: A ball is shot from a compressed-air gun at twice its terminalspeed. (For the following, assume the drag force depends onv2)
1. What is the magnitude of the ball's initial acceleration, as amultiple of {\rm g} , if it is shotstraight up? Express your answer using one significantfigure.
2. What is the magnitude of the ball's initial acceleration, as amultiple of {\rm g} , if it is shotstraight down? Express your answer using one significantfigure.
The spring in a clothespin is compressed 0.40 cm, storing energy in the form of spring potential energy. If the spring is compressed twice as far, the spring potential energy increases with 0.0046 J. What is the force constant, k, for this spring?
A 0.520 kg block of wood hangs from the ceiling by a string, and a 0.0700 kg wad of putty is thrown straight upward, How high does the putty-block system rise above the original position of the block
A very thin sheet of plastic (n=1.60) covers one slit of adouble-slit apparatus illuminated by 640-nm light, What is the (minimum) thickness of the plastic
Eight uncharged capacitors with equal capacitances are combined in series. The combination is connected to a 6.53-V battery, Find the capacitance of each capacitor
A small block of mass 100g is kept on seat.The friction of coeffiecint is 0.58.find normal contact force and angle at which block will just slide
A person pushes a 10 kilogram box from rest and accelerates it to a speed of 4.0 m/s with a constant force. calculate what is the force exerted by the person
A large constant head water reservoir feeds two irrigation lines as shown below. If we neglect any kinetic energy change due to an area change of the piping.
A 26.0 kg satellite is in a circular orbit around the planet at a height of 1.20×105m above the planet's surface. Calculate the speed of the satellite.
A chest x ray uses 14 keV photons. A 65 kg person receives a 35 mrem dose from one x ray that exposes 25% of the patient's body
A long jumper (as shown in the figure) leaves the ground at an angle of 17.0° to the horizontal and at a speed of 10.6 m/s. How far does he jump
An asteroid is in a nearly circular orbit of radius 5.219 AU about the Sun. Determine the period of this asteroid
A mountain climber stands at the top of a 50m cliff hanging overa calm pool of water. What is the initial velocity of the second stone when it is thrown
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