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A thin pole extends straight up from the bottom of a clear pond 2 m deep. The pole extends 1.2 m above the surface of the water. The sun's light creates a shadow of the pole on the surface of the water. This shadow is 0.08 m long. What is the length of the pole's shadow on the bottom of the pond?
a man with mass m1 61 kg stands at the left end of a uniform boat with mass m2 168 kg and a length l 2.6 m. let the
You land on a new planet with radius 5000km. You measure the freefall acceleration due to gravity to be 8.5m/s^2 at the surface
Angry Bird is launched horizontally with a slingshot with a speed of 1.87 m/s. If the initial height of the Angry Bird is 20.41 cm, how far away will the target need to be, in meters
Your eye (diameter 2.5 cm) is able to focus the image of a tree on your retina. What is the size of the image of the tree on your retina
A uniform can with mass M and height H is filled to the top with water. The initial mass of the water is 2M, What is the minimum height of the center of mass as the water drains out
water flowing through a hose at 4.0m/s fills a 600l child's wading pool in 8.0min. What is the diameter in cm of the hose
At t = 0, a particle leaves the origin with a velocity of 12 m/s in the positive x direction and moves in the xy plane with a constant acceleration of (-2.0i+4j) . At the instant the y coordinate of the particle is 18 m, illustrate what is the x ..
In a cyclotron (one type of particle accelerator), a deuteron (of atomic mass 2.00 u) reaches a final speed of 11.0% of the speed of light while moving in a circular path of radius 0.475 m. What magnitude of force is required
A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of 1.630 for red light of wavelength 690 nm. what is the angle between the two beams inside the glass
In a series circuit, r=21ohms L=25mH C=17uF V=150v and w=637rad/s, Calculate the peak current in the circuit
A ball is placed on an edge of a cliff and it is kicked by a soccer player at 20.0 m/s at an angle of ? = 30? above the horizontal, Find the height of the cliff
A skier of mass 68.4 kg glides down a hill of slope 26.5 degree at constant speed. find the coefficient of friction between her skis and the slope
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