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The spring attached to the 10-kg mass is nonlinear, having the force-deflection relationship shown in the figure, and is unstretched when x = 0. If the mass is moved to the position x = 100 mm and released from rest, determine its velocity v when x = 0. Determine the corresponding velocity v' if the spring were linear according to F = 4x where x is in meters and the force F is in kilonewtons.
A point source of electromagnetic waves emits waves uniformly in all directions. What is the power output of the source
Find what mass of water at 21°C must be allowed to come to thermal equilibrium with a 1.80 kilogram cube of aluminum initially at 1.50 × 102°C to lower the temperature of the aluminum to 60.5°C
A tomato of mass 0.23 kg is dropped from a tall bridge. If the tomato has a speed of 15 m/s just before it hits the ground, What is the kinetic energy of the tomato
You have just landed on a planet. You take out a block of mass 245g , release it from rest from a height of 14.01m, What is the acceleration of gravity on this planet
A violin string vibrates at 294 Hz whenunfingered. At what frequency will it vibrate if it is fingeredone third of the way down from the end
If a 110-W light bulb emits 2.5% of the input energy as visible light (average wavelength 550 nm) uniformly in all directions. How many photons per second of visible light will strike the pupil
A centrifuge in a medical laboratory rotates at an angular speed of 3400 rev/min. Find the constant angular acceleration of the centrifuge
A certain microwave oven produces microwaves of frequency 2450 MHz by a power of 500 W. How long must it take to heat 556 g of water, initially at room temperature, to the boiling point? Suppose that all the microwave energy is engrossed by the water..
Two wheels A and B in the figure are connected by a belt that does not slip. The radius of B is 4.41 times the radius of A. What would be the ratio of the rotational inertias IA/IB if the two wheels had (a) the same angular momentum and (b) the sa..
A student attempts to "levitate" a piece of current-carrying wire using the Earth's magnetic field (55 T). Calculate the rate of heat production in the wire
two infinite nonconducting uniformly charged flat surfaces are mutually perpendicular. one of the surfaces has a charge
Calculate the critical angles for the following materials when surrounded by air. Assume that ? = 589 nm
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