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Question: A boy of a height 1.5 m runs with velocity 3 m/s along a straight line passing under a street light placed 3 m above the ground.
Part A: Show that the shadow of his head moves uniformly and find the velocity of this motion.
Please show me step by step or type in formulas used. I am so lost!!
Bicyclists in the Tour de France do enormous amounts of work during a race. How much work does he do during a 177-km race in which his average speed is 12.7 m/s
Container a holds an ideal gas at a pressure of 5.0 x10^5 Pa and temperature of 300 K. It is connected with a thin tube (and a closed valve) to container B, with 4 times the volume of A. Container B holds the same ideal gas at a pressure of 1.0 x 10^..
a curve with a 130m radius on a level road is banked at the correct angle for a speed of 20 ms?if an automobile rounds
What is the maximum energy that a free electron (initiallystationary) can acquire in a collision with a photon of energy 4keV?
A hot iron horseshoe (mass = 0.38 kg), just forged (Fig. 14-16), is dropped into 1.68 L of water in a 0.33 kg iron pot initially at 20 °C. estimate the initial temperature of the hot horseshoe
The drawing shows an edge-on view of two planar surfaces that intersect and are mutually perpendicular. Surface 1 has an area of2.0 m2, while surface 2 has an area of 3.9m2.
Mark and Clark are identical twins at the amusement park riding on the bumper cars. Both boys have the same mass, 85kg. The cars are identical with a mass of 120 kg.
a bicyclist is coasting straight down a hill at a constant speed. the mass of the rider and bicycle is 60.0 kg and the
Discover the minimum thickness of a soap film (n = 1.33) that will result in a constructive interference for a yellow light of vacuum wavelength 589 nm. What is the minimum non-zero thickness if the film appears dark?
a model rocket blasts off from the ground rising straight upward with a constant acceleration that has a magnitude of
small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 14 cm. what will the image position be
A partly-full paint can has 0.82 U.S. gallons of paint left in it. What is the volume of the paint
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