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An obnoxious brat assigns his 18.7-gram pet mouse Mickey the role of stunt mouse by stuffing him into a spring gun and shooting him up into the air at some angle. The gun\'s spring has a force constant of 90.1 N/m and is initially compressed 12.7 cm. When Mickey reaches maximum height, he has a horizontal velocity with a speed of 2.43 m/s. How high above his initial location in the gun does Mickey soar? (In case you are worried, a miniature parachute opens at this point and Mickey lands safely. The brat is slightly less obnoxious than we thought.) Take g = 9.81 m/s2.
The vertical displacement y(x,t) of a string stretched along the horizontal x-axis is given by y(x,t) = (6.00 mm) cos[(3.25 m-1)x - (7.22 rad/s)t]. What is the distance between adjacent crests of the wave
Consider a sunspot with measured field strength 1000 Gauss. Assume the ratio of the total brightness of the gas at the center of the sunspot, Determine the temperature of the gas inside and outside the sunspot
A pair of slits, separated by 0.180 mm, is illuminated by light having a wavelength of ? = 612 nm. Express this path difference in terms of the wavelength
An electric motor is rated to have a maximum power output of 0.68 hp. how fast (i.e., at what speed) can it lift the crate
A 743 pF capacitor is charged to 130 V and then quickly connected across a 172 mH inductor.What is the resulting frequency of oscillation
An ambulance is generating a siren sound at a frequency of 2,400 Hz. The velocity of sound is 345.0 m/s. find the frequency of the siren perceived by the observer
A 1.02mF capacitor is connected in series with an AC source with amplitude 50V and angular frequecy 40 rad/s. determine the amplitude of the current through this circuit
A man is lifting a 50kg rock. This weelbarrow is the first kind of lever, and the middle of the wheel is the fulcrum. How big is the man's force on the wheelbarrow to lift the rock
When placed in a given uniform electric field, a proton develops an acceleration of 5.00 * 10^10 m/s^2 in the eastward direction. What acceleration will be developed by an electron when placed in the same electric field
Two negative point charges are separated by 11.0cm and feel a mutual repulsive force of 3.45nC . The charge of one is three times that of the other. How much charge does each have
What is the speed of an electron that has a total energy of zero in a hydrogen atom
An engraver uses a magnifying glass (f = 8.80 cm) to examine some work, as in the drawing. What is the distance between the work and the magnifying glass
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