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A bullet with mass 4.59 g is fired horizontally into a 1.958-kg block attached to a horizontal spring. The spring has a constant 5.61 102 N/m and reaches a maximum compression of 5.82 cm.
(a) Find the initial speed of the bullet-block system.
m/s
(b) Find the speed of the bullet.
The temperature inside a house is 25 degree C while the temperature outside is 10 degree C. Approximately how much energy is radiated per second
A projectile is fired vertically from Earth's surface with an initial speed of 9.6 km/s. Neglecting air drag, how far above the surface of Earth will it go
A 0.200 kg hammer is moving horizontally at 8.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
what is the available energy content, in joules, of a battery that opperates a 2.00 w electric clock for 18 months
A tennis racket has nylon strings. If one of the strings with a diameter of 1 mm is under the tension of 15 N, how much is it lengthened from its original lenght of 40 cm.
When burned, 3.7 tons of coal releases the amount of energy that you use over the course of a year in the form of heat. How many tons of coal are required to provide you with your yearly energy use if you were to get that energy from a coal burnin..
A coil has 480 turns and self-inductance 3.40 mH. At t = 0.0150 s, what is the magnitude of the induced emf
An automobile starter motor has an equivalent resistance of 0.0480 and is supplied by a 12.0 V battery with a 0.0080 internal resistance. What power is supplied to the motor
Suppose you have a spherical balloon filled with air at room teperature and 1.0 atm pressure; its raidus is 12cm. what's the balloon's new radius
Sketch a vector diagram of the earth's magnetic field. The dip angle is 65 degrees, Determine Bearth by simple trigonometry
A 45.0 kg person, standing 1.3 m from the axis, begins to run on the disk in a circular path and has a tangential speed of 2.80 m/s relative to the ground. Find out the resulting angular speed of the disk (in rad/s)
A photographic image of a building is 0.0920 m high. The image was made with a lens with a focal length of 55.0 mm. determine the height of the building.
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