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The mean diameters of X and Y, two planets in the same solar system, are 6.4 103 km and 1.2 104 km, respectively. The mass of X is 0.25 times the mass of Y. The value of g on Y is 8.8 m/s2. The mass of Y is 4.750 1024 kg. What is the escape speed on X?
A 0.950kg block is attached to a spring with spring constant 16N/m, What is the amplitude of the subsequent oscillations and What is the block's speed at the point where x= 0.20
A tennis ball of mass 57 g travels with velocity m/s toward a wall. After bouncing off the wall, What is the change in the momentum of the tennis ball
What is the electric potential at the center of a hollow metal sphere of outside diameter 14. cm which holds a net charge of 3.3 muC
A small object is placed to the left of a convex lens and on its optical axis. The object is 30 cm from the lens, which has a focal length of 20 cm. what will the image position be
A fisherman casts his bait toward the river at an angle of 25 degrees above the horizontal. What was the initial velocity he launched the bait
If a person standing inside an elevator is moving up at uniform speed of 4m/s what is the normal force on her feet? Weight of the person is 60kg
Suppose the particle has a charge q = 2.6 ?C and is moving with a velocity of magnitude v = 1.2 × 103 m s?1, Draw a diagram to indicate the direction of the force on the particle
A brass plate with a thickness of 1.00 cm is placed over a copper plate with a thickness of 2.00 cm. What is the effective coefficient of thermal conductivity for the brass - copper layer
Consider the glass prism in the figure below, for which ? = 22° and ? = 68°. What is the smallest angle ?1 for which a laser beam will undergo total internal reflection
What would be the equilibrium temperature when a 227 block of copper at 265 is placed in a 155 aluminium calorimeter cup containing 844 of water at 14.50.
A 24 cm long wire with a linear density of 16.5 g/m passes across the open end of a 87 cm long open-closed tube of air. If the wire, What is the fundamental frequency of the wire
A 14.5 gram, 78.6 centimeter long steel guitar string is vibrating in its fourth harmonic. What is the tension on the steel guitar 'string'
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