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A) A 131kg astronaut (including space suit) acquires a speed of 2.32m/s by pushing off with her legs from an 1760kg space capsule. What is the change in speed of the space capsule?
B) If the push lasts 0.550s, what is the magnitude of the average force exerted by each on the other?
A thin, light wire is wrapped around the rim of a wheel. The wheel rotates without friction about a stationary horizontal axis that passes through the center of the wheel. The wheel is a uniform disk with radius 0.28. An object of mass 4.0 is suspend..
A point charge 4.20 mu C is held fixed at the origin. A second point charge 1.60 mu C with mass of 2.80×10-4 kg is placed on the x axis, 0.280 {rm m} from the origin. The second point charge is free from rest. What is its speed when its distance f..
A ball thrown straight upward returns to its original level in 2.80 s . A second ball is thrown at an angle of 44.0 degrees above the horizontal. What is the initial speed of the second ball
A 13.5?F capacitor is connected to a power supply that keeps a constant potential difference of 26.0V across the plates. How much energy is stored in the capacitor before the dielectric is inserted
A projectile is fired from the surface of the Earth with a speed of 200 meters per second at an angle of 30 degress above the horizantal. If the ground is level, illustrate what is the maximum height reached by the projectile?
The wire is located in a uniform magnetic field B directed perpendicular to the wire. Compute the magnitude of B when the force on the wire due to B is 0.200 N.
Assume someone drops an apple from a vertical distance of 6.0 meters, directly above the point where the arrow hits the tree.
Consider a thin rod of mass 3.7 kg, length 1.8m and uniform density. The rod is pivoted at one end on a frictionless horizontal pin
The temperature of a copper bar rises by 10.0°C when it absorbs 2.03 kJ of energy by heat. The mass of the bar is 525 g
A ball falls straight down onto a wedge that is sitting on frictionless ice. The ball has a mass of 3.27 kg, and the wedge has a mass of 5.31 kg. what is the velocity of the wedge after the collision
An engine goes through the following cycle with 2.20 sample of a diatomic gas. I. an isothermas expansion from point a to point b. II. a constant pressure compression from point b to point c. III.
An airplane is flying with the velocity of 82.0 at an angle of 22.0 above the horizontal. When the plane is a distance 111 straight above a dog that is standing on level ground, a suitcase drops out of the luggage compartment. How far from the dog..
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