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An airplane is flying at 600 km/h at an altitude of 2.0km. When the sound of the airplane's engines seem to somebodyon the ground to be coming from directly overhead, how far away is she from being directly below the airplane?
A woman throws a ball at a vertical wall d = 3.6 m away. The ball is h = 1.8 m above ground when it leaves the woman's hand with an initial velocity of 10 m/s at 45°. How long was the ball in the air after it left the wall
A 12.00kg runaway grocery cart runs into a spring with spring constant 260-N/m and compresses it by 65 cm. What was the speed of the cart just before it hit spring.
What is the energy of a single photon of red light with a wavelength of 633 nm?
A small girl and boy take a sled up to the top of a snow covered slope which is inclined 30 degrees above the horizontal, How fast are they going at the bottom
a rocket with inital mass 1000 kg adjusts its thrust byvarying the rate at which mass is ejected. the ejection speedrelative to the rocket is 30 km/s. find at what rateis mass being ejected at that instant
A series circuit is made up of a 400 ohm resistor, a 3 henry inductor and a 8 microfarad capacitor all placed in series. Determine the steady state current flowing in this circuit
A crate with mass 36.0 initially at rest on a warehouse floor is acted on by a net horizontal force of 142. Explain how far does it travel in 12s and what is its speed at that time?
Oxygen, modeled as an ideal gas, is in a container and has a temperature of 63.9°C. What is the rms-average magnitude of the momentum
A spaceship is launched from the Earth's surface with a speed v. The radius of the Earth is R. What will its speed be when it is very far from the Earth
A solid wheel (solid cylinder) with mass 2.5 kg and a radius of 0.50 meter starts rotating from rest and has a constant angular acceleration of 2.5 radians/second^2 Determine the torque required to produce this motion
A ball with a vertically downwards initial velocity v(0) = 3 m/s collides with a fixed inclined surface. find the velocity of the ball after it rebounds
How fast would it be moving after it had fallen a distance of 0.010-m? (Assume that the gravitational force is constant over the distance of the fall, and that the star is not rotating.)
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