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A spaceship of mass 2.30×106kg is cruising at a speed of 5.30×106m/s when the antimatter reactor fails, blowing the ship into three pieces. One section, having a mass of 4.60×105kg , is blown straight backward with a speed of 1.80×106m/s . A second piece, with mass 8.10×105kg , continues forward at 1.30×106m/s .
What is the speed of the third piece?
Suppose that the separation between two speakers A and B is 4.40 m and the speakers are vibrating in-phase, What is the largest possible distance between speaker B and the observer,
An instructor wants to use a lens to project the real image of a light bulb onto a screen 1.23 m from the bulb. In order to get the image to be two times as large as bulb, what focal length lens will be required.
An athlete swims the length L of a pool in a time t1 and makes the return trip to the starting poisition in a time t2. (a) If she is swimming initially in the positive x-direction, determine her average velocities symbolically in (a) the first hal..
A 45.50 cm diameter disk rotates with a steady angular acceleration of 2.00 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.30° with the positive x-axis at..
An 77 kg quarterback jumps straight up in the air right before throwing a 0.43 kg football horizontally at 15 m/s. Illustrate how fast will he be moving backward just after releasing the ball?
A car travelling at 23 m/s runs out of gas while travelling up a 20 degree slope. How far up the hill will it coast before starting to roll back down.
Blood pressure is normally taken on the upper arm at the level of the heart, what would be the magnitude of the difference between this measurement of blood pressure and a normal blood pressure measurement
A pendulum has a period of 0.80s on Earth. What is its period on Mars, where an acceleration of gravity is about 0.37 that on Earth.
An electron enters a region of space containing a uniform 0.0000227-T magnetic field. Its speed is 115 m/s, Find the radius r of the electron\'s path, and the frequency f of the motion
Physics: Simple Harmonic Oscillator, Traveling waves are set up in a pair of long strings by a simple harmonic oscillator. The strings have identical mass densities of 5.1 grams/meter.
A 0.15g honeybee acquires a charge of 21pCwhile flying, What is the ratio of the electric force on the bee tot he bee's weight and What electric field strength and direction would allow the bee to hang suspended in the air
Three men are riding on a train of proper length L that is moving at speed v = 3/5 c with respect to the ground, Calculate the time difference between the two emissions, in both frames
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