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Need help answering this question The ancient Egyptians used simple machines to build the pyramids. Discuss how you might use one or more of the simple machines to move the massive stone blocks up the growing pyramid, and into their proper places.
The escape velocity of a bullet from the surface of planet Y is 1791 m/s. Calculate the escape velocity from the surface of the planet X
question1there are two identical vessels a and b of volume v each one empty and other containing the block of wood of
Because the mass would not make it around the loop if released from the height of the top of the loop (do you know why?) it should be released above the top of the loop-the-loop height.
a solid sphere is released from rest on an incline. when it reaches the bottom what fraction of its total kinetic
A cart with mass 310 g moving on a frictionless linear air track at an initial speed of 1.0 m/s undergoes an elastic collision with an initially stationary cart of unknown mass. What is the speed of the two-cart center of mass
A ball is tossed from an upper-story window of a building. The ballis given an initial velocity of 8.70m/s at an angle of 21.0° below the horizontal. It strikes the ground6.00 s later.
Unpolarized light passes through five successive Polaroid sheets, What is the intensity of the transmitted beam
Calculate the size of the smallest object on Mars that this telescope can resolve. Assume Mars is at its closest distance 7.8 × 1010 m from the Earth
A spring (k = 200 N/m) is suspended by its upper end supported from a ceiling. With the spring hanging in its equilibrium configuration, an object (mass = 2.0 kg) is attached to the lower end and released from rest. What is the speed of the object af..
A 1kg block of ice at 0o C falls into alake whose water is also at 0o C, and 0.01 kg of the icemelts. What was the minimum altitude from which the ice fell
Consider the mass spectrometer shown schematically. The electric field between the plates of the velocity selector is 950 V/m, and the magnetic fields in both the velocity selector and the deflection chamber have magnitudes of 0.930T. Calculate th..
Both boats remain in their slips for 10 minutes before starting back. On the return trips they meet 400 yards from the other shore. How wide is the river?
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