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A bullet is shot straight up into the air. It takes 30.5 s for the bullet to go straight up and fall back straight down to its starting position. At what initial speed (in m/s) was the bullet shot into the air? (Ignore air resistance.) Show work please
What is the magnitude of the normal force exerted by the car.
A 20x telescope has a 12-cm diameter objective lens. What minimum diameter should the eyepiece lens have to collect all the light rays from an on axis distant source.
What is an acceleration of the particle at the instant
A 21kg solid door is 220 cm tall, 92cm wide, What is the door's moment of inertia for rotation about a vertical axis inside the door, 13cm from one edge
Define the velocity and the potential energy of an object briefly.
A .060-kg tennis ball, initially moving 5.50 m/s, has a head on collision with a .090-kg ball initially moving in the same direction, determine the Speed and direction of each ball after collision
A cubic box of volume = 0.34300m^3 is filled with air at atmospheric pressure at 20.000*C. What is the net force on one side of the box
A 1.02 kg mass is suspended from a wire changes the length of the wire by 1.20 mm. find the stress in the wire due to the suspended mass
A light spring-gun projectile launcher is mounted on an 0.593 kg air track glider. compute the speed of the air-track glider after the gun is fired
A person with mass m1 = 60 kg stands at the left end of a uniform beam with mass m2 = 91 kg and a length L = 3.2 m, What is the location of the center of mass of the system
A tank of water sits at the edge of a table of height 1.6 meter. The tank springs a very small leak at its base, and water sprays out a distance of 1.1 meters from edge of the table. What is the water level in the tank.
Estimate the acceleration of cyclist, and roller coaster.
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