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A 3.0-g bullet traveling at 350 m/s hits a tree and slows down uniformly to a stop while penetrating a distance of 12 cm into the tree's trunk. What was the force exerted on the bullet in bringing it to rest?
Driving along a crowded freeway, you noticethat it takes a time t to go from one mile marker to the next. What was your original speed
Chris jumps off a bridge with a bungee cord (a heavy stretchable cord) tied around his ankle as shown in the figure . He falls for 15 before the bungee cord begins to stretch. Chris's mass is 70 kg and we assume the cord obeys Hooke's law, , with k=5..
a two-slit pattern is viewed on a screen 1.10 m from the slits. if the two third-order maxima are 42.9 cm apart what is
the highest barrier that a projectile can clear is 13.5 m when the projectile is launched at an angle of 15.0 degrees
a flat surface with area 2.2 m2 is in a uniform electric field of 910 nc. what is the electric flux through the surface
You and your friend Peter are putting new shingles on a roof pitched at 25?. If the coefficient of kinetic friction between the box and the roof is 0.51, with what speed should you push the box to have it gently come to rest right at the edge of th..
The rms current in a copy machine is 3.00 A, and the resistance of the machine is14.6 Ω. What is the average power?
A vertical tube 1.9 cm in diameter and open at the top contains 7.6 g of oil (density 0.82 g/cm^3 floating on 7.6g of water. Find the gauge pressure at the oil-water interface
what is the coefficient of kinetic friction between the box and the tabletop.
a major-league pitcher can throw a ball in excess of 40.7 ms. if a ball is thrown horizontally at this speed how much
A cement block accidentally falls from rest from the ledge of a 74.8-m-high building. When the block is 18.4 m above the ground, a man, 2.10 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have ..
A 0.015 Kg record with a radius of 15 cm rotates with an angular speed of 33(1/3) rpm. what is the fly's angular momentum
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