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A bridge has a mass of 2.60 x 10 to the 4th kg, is 32.0 meter long, and has a 3500 kilogram bus 15.0 meter from one end. Find what force must each end of the bridge support?
an elastic collision between two bodies in which the collision is not head-on. Projectile particle m1 is an alpha particle and target m2 is an oxygen nucleus. Find the initial speed of the alpha particle
A spring with a spring constant of 500N/m is used to propel a .45kg mass up an inclined plane. find the speed of the mass as it reaches the top of the plane
An object of mass 2.5 kg on a table is connected to a hanging object of mass 11.2 kg by means of a string via a pulley. Caculate the acceleration of the system
A block of unknown mass is attached to a spring with a spring constant of 6.00N/m and undergoes simple harmonic motion with an amplitude of12.5cm. Calculate the maximum acceleration of the block
A string is wrapped around a disk of mass 2.1 kg (its density is not necessarily uniform). what is the speed of the center of mass of the disk
A -6.00 µC charge is moving with a speed of 7.80*104 m/s parallel to a very long, straightwire. The wire is 5.00 cm from the charge and carries a current of78.0 A in a direction opposite to thatof the moving charge. Find the magnitude and directio..
While sitting in your car by the side of a country road, you see your friend, who happens to have an identical car with an identical horn, approaching you. How fast is your friend approaching you
A yo-yo has a rotational inertia of 930 gcm2 and amass of 110 g. Its axle radius is2.9 mm, and its string is 130 cm long. What is the magnitude of its linear acceleration
a student holds a tuning fork oscillating at 256 hz. he walkstoward a wall at a constant speed of 1.33 m/s. what beat frequency does he observe between the tuning fork and its echo
A subway train has a sound intensity level of 90 dB, and a boiler shop has a sound intensity level of 100 dB. How many times greater is the new sound intensity of the shop than that of the train?
a uniform electric field of magnitude 390 nc pointing in the positive x-direction acts on an electron which is
question11. at one point in a skydive a falling 99 kg skydiver is encountering air resistance of 442 n. how much does
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