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A 10.0- shell is traveling horizontally to the right at 25.0 relative to the ground when it explodes into two fragments, one of mass 3.00 and the other of mass 7.00 . The lighter fragment goes directly forward, and the explosion releases 1.50 × 103 of mechanical energy to the fragments. Find the magnitude of the velocity of the heavier fragment relative to the ground just after the explosion.
A 0.500 kg football is thrown toward the east with a speed of 10.0 m/s. A stationary receiver catches the ball and brings it to rest in 0.020 s. What is the average force exerted on the receiver
For a damped oscillator with a mass of 350 g, a spring constant 59.00 N/m and a damping coefficient of 89 g/s, what is the ratio of the amplitude of the damped oscillations to the initial amplitude at the end of 30 cycles.
The potential difference between the surface of a 2.5cm -diameter power line and a point 1.6m distant is 4.1kV. What is the line charge density on the power line
If a 25.00 gram bullet with a speed of 290 travels 14 into a tree before stopping, what's the average force exerted to stop bullet.
A hydrometer is used to measure the specific gravity of liquids. For a sure liquid a hydrometer reading indicates a specific gravity of 1.15. What is the liquid's density and specific weight? State the answer in SI units.
A 8.85- g bullet from a 9-mm pistol has a velocity of 376.0 m/s. what was the velocity of the bullet as it emerged from the block
In discharging a capacitor what percentage of the initial potential remains after one time constant has passed? After two times constants? Three times constants
A vertical scale on a spring balance reads from 0 to 245 rm{N}. The scale has the length of 11.0 rm{cm} from the 0 to 245 rm{N} reading. A fish hanging from bottom of the spring oscillates vertically at a frequency of 3.00 rm{Hz}.Ignoring the mass..
a basketball (m= 0.60 kg) is dropped from rest. just before striking the floor the ball has a momentum whose magnitude is 3.1 kg x m/s. at what height was the basketball dropped
A projectile is launched from ground level to the top of a cliff which is 195m away and 155 m high, find the initial velocity of the projectile
A highway curve has a radius of .58 km and is unbanked. A car weighing 36 kN goes around the curve at a speed of 36 m/s without slipping
The index of refraction of crown glass for violet light is 1.528, while for red light it is 1.514. What is the speed of violet light in crown glass
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