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A small wooden block with mass 0.875kg is suspended from the lower end of a light cord that is 1.80m long. The block is initially at rest. A bullet with mass 0.0100kg is fired at the block with a horizontal velocity v0 . The bullet strikes the block and becomes embedded in it. After the collision the combined object swings on the end of the cord. When the block has risen a vertical height of 0.700m , the tension in the cord is 4.86N.
What was the initial speed v0 of the bullet?
A 1125 kg car and a 2250-kg pickup truck approach a curve on the express way that has a radius of 225 m. (a) At what angle should the highway engineer bank this curve so that vehicles traveling at 95 km/h can safely round it? (b) As car and truck ..
Consider an LR circuit like that displayed in Figure 6.6 in Activity 2-1 in your lab manual. You measure the current through the inductor as a function of time, What is the total resistance of the circuit
two singly charged ions moving perpendicular to a uniform magnetic field B=0.4T each has a speed of 500 km/s, calculate the difference in masses of the two ions
A projectile is shot from the ground at an angle of 55 degrees with respect to the horizontal,find the horizontal component and the vertical component of initial velocity
A 65.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the maximum distance the spring is compressed
Consider a constant net force of 15.0 N acting on 22 degrees below the x-axis, find the work done by the net force.
If the balloon can barely lift an additional 2900N of passengers, breakfast, and champagne when the outside air density is 1.23kg/m3, FIND the average density of the heated gases in the envelope
Electrostatic interactions with neighbors cause atoms in solids to be held in place as if bound together by tiny springs. How do you arrive at that conclusion
A spacecraft receding from he earth at 0.97c transmits data at the rate of 1*104pulses/s. At what rate are they received.
As a hiker in Glacier National Park, you are looking for a way to keep the bears from getting at your supply of food. What will be the acceleration of the bags when you let go of the anchor bag in m/s^2
The rear window of a van is coated with a layer of ice at 0°C. The density of ice is 917 kg/m3, What is the maximum thickness of ice above this area that the defroster can melt in 4.4 minutes
A mass of 1.0 kg is pushed against a spring with a spring constant of 25 N/m. What is the amount of potential energy acquired by the spring when it is compressed
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