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A small asteroid that has a mass of 120 kg is moving at 225 m/s when it is 1000 km above the Moon.
(a) How fast will the meteorite be traveling when it impacts the lunar surface if it is heading straight toward the center of the Moon? The radius of the Moon is 1.737 x 106 m. (b) How much work does the Moon do in stopping the asteroid if neither the Moon nor the asteroid heat up in the process?
A speedboat starts from rest and accelerates at +2.42 m/s2 for 8.71 s. At the end of this time, the boat continues for an additional 4.33 s with an acceleration of +0.654 m/s2. Find the total displacement of the boat
A 3.00-g bullet traveling horizontally at 400 m/s hits a 3.00-kg wooden block, which is initially at rest on a smooth horizontal table. The bullet buries itself in the block without passing through. The speed of the block after the collision is:
A 2.0 kg mass is connected to a spring with a spring constant of 9.0 N/m. What is the period of this simple harmonic motion
The drawing shows three materials, a, b, and c. A ray of light strikes the a–b interface at an angle that now hardly exceeds its critical angle of 40.0°. The reflected ray then strikes the a–c interface at an angle of incidence that now barely exceed..
A jumbo jet has a mass of 2.3 × 105 kg and a total wing area of 950 m2, what is the difference in pressure between the upper and lower wing surface
The same object is located at the same distance from two spherical mirrors, A and B. Find the ratio fA/fB of the focal lengths of the mirrors
a flywheel of mass 182 kg has an effective radius of 0.64 m assume the mass is concentrated along a circumference
A train traveling at a constant speed rounds a curve of radius 220 meter. A lamp suspended from the ceiling swings out to an angle of 16 degree throughout the curve. Evaluate what is the speed of the train
Slopping air track: A glider moves frictionlessly along an air track that has been tilted by 1.5 inches over a span of 1.00 meters. What is the expected acceleration of the glider
Huck Finn walks at a speed of .6m/s across his raft (that is perpendicular to the raft's motion relative to the shore). what is Huck's velocity(speed and direction) relative to the river bank
An uncharged capacitor and a resistor are connected in series to a source of emf. If the emf is 5.4 V, the capacitance 14.5 µF, and the resistance 337 ohm, Find the charge on the capacitor after one time constant
A electromagnetic monophonic wave of frequency 600*10^12Hz (green light ), propagating in the positive x direction in a vacuum, has an electric feild amplitude of 42.42 V/m. The wave is linearly polarized such that the plane vibration of the electric..
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