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A 3.0 kilogram block slides with a speed of 1.1 m/s on a frictionless, horizontal surface until it encounters a spring.
(a) If the block compresses the spring 7.0 centimeter before coming to rest, find what is the force constant of the spring?
(b) Compute what initial speed should the block have if it is to compress the spring by 1.3 centimeter?
An object of mass b has a speed that changes with distance d according to v = bx^-n. What is the force as a function of time
Object O1 is 15.2 cm to the left of a converging lens with a 11.8-cm focal length. A second lens is positioned 10.0 cm to the right of the first lens and is observed to form a virtual image at the position of the original object O1.
A cyclist pedals a bicycle. The driving wheel accelerates from the rest to an angular speed of 6.4 rev/s in 3.8 revolutions. What is the angular acceleration of the wheel
A harmonic on a string1.3 m long has a frequency of 15.6 Hz. The next higher frequency is 23.4 Hz. Both ends ofthe string are fixed. What is the fundamental frequency
You are driving a car with a speed of 25 m/s. You slam on your brakes for 1.50 seconds causing your car to decelerate at a constant rate of 4.50 m/s^2. What is your speed at the end of this time?
The physical therapist Is examining a rehab patient right knee in preparation for fitting them a knee brace. What is the name of the anatomical plane in which this flexion/extension motion occurs
A high-voltage transmission line with a resistance of 0.34 omegacap.gif/km carries a current of 960 A. What is the power loss due to resistance in the line
A crate is dragged 3.0 meter along a rough floor with a constant velocity by a worker applying a force of 500 Newton to a rope at an angle of 30o to the horizontal. Calculate how much work does each of these forces do
A cubic box of volume = 0.34300m^3 is filled with air at atmospheric pressure at 20.000*C. What is the net force on one side of the box
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 440-g sample of silver at an initial temperature of 85°C is placed in the water. Calculate the mass of the aluminum cup
In a series LRC circuit the rms voltage across the resistor is 80.0 V, across the capacitor is 120 V, and across the inductor is 60.0 V. If 1.50 an rms is flowing in this circuit, what is the average power dissipated?
suppose your body is rotated about an axis that 1 runs vertically through your spine or an axis that 2 runs
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