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A spacecraft flies away from the earth with a speed of 4.90×106 {\rm m/s} relative to the earth and then returns at the same speed. The spacecraft carries an atomic clock that has been carefully synchronized by an identical clock that remains at rest on earth. The spacecraft returns to its starting point 365 days (1 year) later, as gauged by the clock that remained on earth.
What is the dissimilarity in the elapsed time son the two clocks, measured in hours?
a 55 g particle is moving to the left at 11 ms. how much work must be done on the particle to cause it to move to the
A 1000 kg car is traveling at a speed of 20 m.s-1 east and a 1200 kg car is traveling at 22 m.s-1 west. What is the velocity of the second car measured from the center of mass reference frame of the system?
Two objects attract each other with a gravitational force of magnitude 9.8 x 10-9 Newton when separated by 19.3 centimeter. determine what is the mass of each
Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 58.0?. Dog A exerts a force of 260N , and dog B exerts a force of 320N
Water of mass 2.00 kg is heated when it is stirred with a paddle that exerts a constant force of 6.50 N on the water and moves during it at a speed of 1.80 m/s. How long will it take for the temperature of the water to increase by 1°C, if all the mec..
a 17.0-g piece of styrofoam carries a net charge of -0.75 microc and is suspended in equilibrium above the center of a
In Fig. 23-45, a small, nonconducting ball of mass m =1.4 mg and charge q = 2.9 x 10-8 C (distributeduniformly through its volume) hangs from an insulating thread thatmakes an angle θ = 44° with a vertical, uniformly chargednonconducting sheet (sh..
A car makes a trip due north for three-fourths of the time and duesouth one-fourth of the time. The average northward velocity has amagnitude of 24 m/s, and the averagesouthward velocity has a magnitude of 23 m/s. What is the average velocity (magnit..
a proton moving at a constant velocity of 106 ms enters a region of uniform magnetic field perpendicular to its
A 150 ohm resistor, a 30 mH inductor and a 2 uF capacitor are connected in series with a 120 V rms source at 1500 Hz. What is the impedance of this circuit
A person going for a morning jog on the deck of a cruise ship is running toward the bow of the ship at 2.2 m/s while the ship is moving ahead at 7.5 m/s. What is the jogger's velocity relative to the water now
Which kinetic energy equals to rotational motion
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