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Two rocks collide in outer space. Before the collision, one rock had mass 15 kg and velocity ‹ 4300, ?2700, 2350 › m/s. The other rock had mass 8 kg and velocity ‹ ?600, 2100, 3750 › m/s. A 2 kg chunk of the first rock breaks off and sticks to the second rock. After the collision the 13 kg rock has velocity ‹ 1400, 250, 1900 › m/s. After the collision, what is the velocity of the other rock, whose mass is now 10 kg?
A 25 cm Diameter coil consists of 50 turns of circular copper wire 2.5 mm in diameter. Determine the rate at which tyhermal energy is produced
A man drops a baseball off of the top of the Empire State Building. If an action force is the pull of the Earth on the ball, then what is the reaction force.
A krypton laser produces a cylindrical red laser beam 2.0 in diam with 2.0 of power. What is the light intensity on a wall 2.5 away from laser.
proton is confined to a nucleus that has a diameter of 5.6 10-15 m. what is the minimum uncertainty in its momentum
A model rocket blasts off from the ground, rising straight upward with a constant acceleration for a time of 1.90s. What is the maximum altitude of the rocket
shallow glass dish whose width w is 4.40 cm. When an observer's eye is placed as shown, the observer sees the edge of the bottom of the empty dish, Find the height h of the dish
As a 13,800 kg jet plane lands on an aircraft carrier, its tail hook snags a cable to slow it down. what was the plane's landing speed
We have some air in a cylinder like that in the figure. Assume that air is an ideal diatomic gas. The diameter of the cylinder is 5.4 cm. Find the amount of hear that was put into air
Monochromatic light (Wavelength = 500 nm) passes through two slits and onto a screen 2.5 m away. what is the new distance between bright fringes
The front 1.20 m of a 1600 kg car is designed as a "crumple zone " that collapses to absorb the shock of a collision. what is the magnitude of the average force on the car
What tension is necessary to tune string properly
The ball rebounds straight upward to a height of 3.20 m. Taking the negative direction to be downward, illustrate what is the impulse of the net force applied to the ball during the collision with the floor?
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