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An observer sees two spaceships moving in opposite directions, each at a speed of 0.837c, relative to the observer.
Find the speed of one spaceship relative to the other. (Enter the answer to four significant figures.)
Find the wavelengths of these extremes at a temperature. find out the force exerted by the man on the rope, and the work done in dragging the box over a distance of 15m.
We know that the acceleration due to gravity at the surface of the Earth is 9.8m/s2, There's one other domain, what's the value of gravity below the surface of the Earth
Radius=10m Vt=12.3 If at point A the track exerts a force on the car that is 2.92 × 10^4 N greater than the car's weight, what is the mass of the car.
A block of mass m is suspended from the string a height h above the ground. The string is wrapped around a disk shaped pulley with mass m and radius R. Find out the tension T in the string. (The answer should be in terms of variables). Rotational ..
What is the least radius of the circular path? (b) At this radius, what is the force causing the centripetal acceleration of the pilot.
A baseball pitcher throws a fastball at a speed of 35m/s. The acceleration occurs as the pitcher holds the ball in his hand and moves it throughout an almost straight-line distance of 3.7 m. estimate the acceleration, assuming that it is constant ..
The coefficient of static friction between m1 and the horizontal surface is 0.60, and the coefficient of kinetic friction is 0.30. what will be the acceleration of the system
What was the take-off speed? If this speed were increased by just 5.0%, explain how much longer would the jump be?
The current in the electron beam of a computer monitor is 415 ?A. How many electrons per second hit the screen
Air at 25 oC blows over a heated steel plate with its surface maintained at 200 oC. Calculate the heat loss per hour from the top surface of the plate
An engine has an efficiency of 63% and produces 6461 J of work. Determine the rejected heat
At a certain instant, a ball is thrown downward with a velocity of 8.0 m/s from a height of 40 m. find the time when the balls collide
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