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Q. A 13 g bullet traveling 217 m/s penetrates a 2.0 kg block of wood and emerges cleanly at 153 m/s. If the block is stationary on a frictionless surface when hit, how fast does it move after the bullet emerges?
Q. The mass of a sports car is 1300 kg. The shape of the car is such that the aerodynamic drag coefficient is 0.240 and the frontal area is 2.10 m^2. Neglecting all other sources of friction, calculate the initial acceleration of the car ,if it has been traveling at 110 km/h and is now shifted into neutral and is allowed to coast.
Two point charges 2.4 and 6.50 are 0.10 apart. Point is midway between them; point is 8.00×10-2 from and 6.00×10-2 from . Take the electric potential to be zero at infinity. Find out the work done by the electric field on a charge of 2.50 that tra..
Find the coefficient of friction between crate and floor
Water at a gauge pressure of 3.0 atm at street level flows into an office building at the speed of 0.40 m/s by a pipe 5.0 cm in diameter. The pipe tapers down to 2.20 cm in diameter by the top floor, 15 m above, where the faucet has been left open. E..
What is the magnitude of the vertical component of its velocity as it strikes the ground.
Assume the square wire loop is replaced with a smaller one, made of the same wire that is 0.02 m on a side, half as long as the original.
Find the change in momentum of a 1080 {rm kg} car that increases its speed from 5.0 {rm m/s} to 14.5 {rm m/s} in a time of 11 {rm s} while travelling in the same direction.
A 175 watt motor is used to lift a 129 kg container to a height of 7m. How much time does it take to lift container with the motor.
What is the distance between deer a and c
A 220 g block on a 50 cm long string swings in a circle on a horizontal, frictionless table at 95.0 rpm. what is the tension on the string.
What is the net entropy change
The coefficient of kinetic friction between block and ramp
A converging lens has a focal length of f = 29 cm. If an object is placed 40 cm from the lens, where will the image be formed.
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