Equilibrium: As shown in the figure, a uniform rectangular crate 0.40 m wide and 1.0 m tall sits on a horizontal surface. The crate weighs 460 N, and its center of gravity is at its geometric center. A horizontal force of magnitude F is applied at a distance h above the floor. Friction at the floor is great enough to prevent the crate from sliding. If h = 0.69 m, what minimum value of F is required to make the crate start to tip over?
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133 N
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In a diffraction experiment, light of 600. nm wavelength produces a first-order maximum 0.350 mm from the central maximum on a distant screen
A second monochromatic source produces a third-order maximum 0.870 mm from the central maximum when it passes through the same diffraction grating. What is the wavelength of the light from the second source?
Newton's law of gravitation applies to all ______________
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A capacitor C is connected in series with a resistor R across a battery and an open switch. If a second capacitor of capacitance 2C is connected in parallel to the first, the time constant of the new RC circuit will be
A) the same as before. B) twice as large as before. C) three times a large as before. D) one-half as large as before. E) one-fourth as large as before.
When something is restricted to having only certain numerical values, it is said to be ________________
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