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A bullet of massm1 is fired horizontally with a speedv into the bob of a ballistic pendulum of massm2. Find the maximum height h attained by the bob if the bullet passes through the bob and emerges with aspeed v/3.
A rubber balloon is filled with 1 L of air at 1 atm and room temperature. what is the new volume of the balloon
An archeologist has discovered an old artifact. Its carbon-14 content is found to be 41.7 % of that in a fresh sample of wood. Find the age of the sample
a glaucous winged gull ascending straight upward at 5.20ms drops a shell when it is 12.5 m above the ground.a what are
Fish are hung on a spring scale to determine their mass (most fishermen feel no obligation to report the mass truthfully). How far apart are the half-kilogram marks on the scale
the pontential difference across the terminals of a battery is 8.4V when there is a current of 1.50A in the battery from the negative to the positive terminal. what is the emf of the battery
An Olympic high jumper wants to cross a bar 1.9 m off the ground while mantaining a velcity of 1.48 m/s. How fast does she have to run to accomplish this
Assume a typical hummingbird has a lifespan of 4.0 years and an average heart rate of 1300 beats per minute. (a) Calculate the number of times a hummingbird's heart beats in its life, and express it in scientific notation.
the overall volume compression ratio of a reversed carnot cycle working with air as a refrigerant is 10. the
Suppose you throw a stone vertically upward with aninitial speed of 6.0 m/s from an office window. if the window is 12m above the ground, find (a) the time the stone is in flight and(b) the speed of the stone just before it hits theground.
A 57.0 kg cheerleader uses an oil-filled hydraulic lift to hold four 130 kg football players at a height of 1.20 m. what is the diameter of the football players' piston
A wheel has a constant angular acceleration (deceleration) of 5.0 rad/s^2. the wheel was initially moving at 15.0 rad/s, How many revolution will the wheel make in 4.0 s
Earthquakes generate sound waves inside Earth. Unlike a gas, Earth can experience both transverse (S) and longitudinal (P) sound waves, how far away did the earthquake occur
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