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Question: You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 14.6 m above the ground, it is traveling at a speed of 25.2 m/s upward.
- Use the work-energy theorem to find its speed just as it left the ground.
- Use the work-energy theorem to find its maximum height.
Leon's bicycle wheels have a circumference of 2 m. What is his linear speed when the wheels rotate at 1 revolution per second? Show all work leading to your answer.
a 100 kg car travelling at 20 ms collides with a 100 kg car traveling at 8 ms in opposite direction a if the two cars
The mean distance between earth and the sun is 1.50 multiplied by 1011 m. what is the total power radiated by the sun
Consider a two lens system by focal length +10 and +5 separated by 12 cm. locate the image of an object 50 cm from the +10 cm lens. What is its magnification? Is the image real or virtual?
a metal sign for a car dealership is a thin uniform right triangle with base length b and height h. the sign has mass
q1. before throwing a 1.49 kg discus an athlete rotates it along a circular path of radius 1.18 m. the maximum speed of
In the low-temperature limit (kT « E), each term in the rotational partition function (equation) is much smaller than the one before. Since the first term is independent of T, cut off the sum after the second term and compute the average energy an..
question1a hollow sphere of radius 0.15 m with rotational inertia 1 0.040 kgm2 about a line through its center of mass
compute the distance from the central maximum to the first bright region on either side of the central maximum.
Two point charges, +3.09 µC and -6.05 µC, are separated by 1.33 m. What is the electric potential midway between them?
The width of the slit is slowly decreased. Once diffraction effects become evident, what happens as the slit gets narrower? Why is there no change in the pattern in the vertical direction? What do you suppose the pattern for a round hole would look..
A car of mass 1,250 kg is lowered onto a junk pile at the end of the cable of a large crane. If the car is accelerating downward at 0.19 m/s2
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