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A 6350 kg space probe moving nose-first toward Jupiter at 105 m/s relative to the Sun fires its rocket engine, ejecting 80.0 kg of exhaust at a speed of 243 m/s relative to the space probe. What is the final velocity of the probe?
A physics lab demonstrates the principles of simple harmonic motion (SHM) by using a spring affixed to a horizontal support, calculate the spring constant
A 1.2-kilogram mass is projected from groundlevel with a velocity of 30 m/s at some unknown angle above thehorizontal. A short time later, after being projected, the massbarely clears a 16-meter tall fence. Disregard air resistance andassume the g..
The dimensions of a parallel-plate capacitor are all increased by a factor of six. By what factor does the capacitance change? (The dimensions refer to the length and width of a plate and the spacing between the plates.)
Liquid helium is stored at its boiling point temperature of 4.2K in a spherical container (r=0.30 meter). The container is a perfect blackbody radiator. Calculate what mass of liquid helium boils away through a venting valve in 1 hour
A pair of eyeglass frames are made of an epoxy plastic (coefficient of linear expansion = 1.30 10-4°C-1). To what temperature must the frames be heated
a 0.10 g plastic bead is charged by the addition of 1.0 x 1010 excess electrons. what electric field strength and
question1a concave mirror is made by coating the inner surface of a segment of a spherical shell with a reflecting
Laura is walking straight toward a plane mirror at a speed of 0.5 m/s relative to the mirror. Find at what speed is her image approaching the mirror
A rock is thrown vertically up at 6.7 m/s. (a) What is it's height when its velocity is 1.35 m/s? (b) Has the rock made it to the highest point in the path?
Two heat reservoirs at temperatures 190°C and 60°C, respectively, are brought into thermal contact, What is the change in the entropy of the two-reservoir system
A dolphin located in sea water at a temperature of 25°C emits a sound directed toward the bottom of the ocean 105 m below
Two bars of identical mass are at 30 °C. One is made from glass and the other from another substance. The specific heat capacity of glass is 840 J / (kg • C°).
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