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You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.5m above the ground, it is traveling at a speed of 24.3m/s upward.
1) Use the work-energy theorem to find its speed just as it left the ground
2) Use the work-energy theorem to find its maximum height.
A long uniform rod of length 1.00 m and mass 6.00 kg is pivoted about a horizontal, frictionless pin through one end. Find the components of the reaction force at the pivot
How much work is completed in charging the capacitor
two automobiles are equipped with the same single-frequency horn. when one is at rest, What is the frequency the horns emit
Coherent light with wavelength 609 passes through two very narrow slits, and interference pattern is observed on a screen a distance of 3 from the slits.
A wheel free to rotate about its axis that is not frictionless is initially at rest. A wheel free to rotate about its axis that is not frictionless is initially at rest
The value of acceleration found in (b)iii, along with numerical values for the given quantities and your answer to (c), can be used to determine the rotational inertia of the pulley. The pulley is removed from its support and its rotational inerti..
An airplane with a speed of 87.7 m/s is climbing upward at an angle of 35.1 ° with respect to the horizontal. When the plane's altitude is 533 m, the pilot releases a package.
A woman on a bridge 86.8 m above a stream sees a bottle floating along at a constant speed. Calculate the speed of the bottle
A single slit is illuminated with monochromatic light, and a screen is placed behind the slit to observe the diffraction pattern. what would be the width of the central maximum
A 150 g Copper bowl contains 220 g of water, at an initial temperature T1. A 300 g Copper cylinder at 7000 C is dropped into the water, How much energy is transferred to the bowl
The first active volcano observed outside the Earth was discovered in 1979 on Io, one of the moons of Jupiter. Assume a volcano on another moon is observed to be ejecting material to a height of about 2.19 x10^5 m.
Two capacitors are connected in parallel across the terminals of a battery. What is the voltage of the battery
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