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A submarine of mass 2.1x 103 kg and initially at rest firesa torpedo of mass 260 kg. The torpedo has an initial speed of 100.1 m/s. What is theinitial recoil speed of the submarine in m/s? Neglect the dragforce of the water.
Your weight is due to the gravitational attraction of the Earth. The Moon, though, also exerts a gravitational force on you, and when it is overhead, Calculate the effect of the Moon on your weight
A space probe is traveling in outer space with a momentum that has a magnitude of 4.29 x 107 kg·m/s. A retrorocket is fired to slow down the probe. Determine the momentum of the probe
A 90 kg man lying on a surface of negligible friction shoves a67 g stone away from himself, giving it a speed of 4.0 m/s . Whats peed does the man acquire as a result
A great amount of water vapor changes phase to become water in the clouds that form a thunderstorm. Does this process release or absorb thermal energy
Although the evidence is weak, there has been concern in recent years over possible health effects from the magnetic fields generated by transmission lines. Estimate the magnetic field strength on the ground
Two balls , one of gold with a mass of 100 kg and one of wood with a mass if 1 kg, are suspended 1 meter apart. find attractive force the wooden ball acting on the gold ball
An electron in the n = 6 state of a hydrogen atom makes a transition to the n = 3, What is the wavelength of the photon emitted
If the car had been going 10m/s but had stopped in the same d = 167m distance, what would its acceleration have been.
a negative charge of -0.550uC exerts an upward 0.205n force on an unknown charge 0.305m directly below it. what is the direction of the force that the unknown charge exerts on the -0.550uC charge
Four identical charged particles (q = +10.9 µC) are located on the corners of a rectangle as shown in the figure below. The dimensions of the rectangle are L = 56.4 cm and W = 14.9 cm
You are holding a compass 3.50m from a long straight electrical supply wire that is carrying a direct current perpendicularly to the local direction of the Earth's magnetic field. What is the magnitude of the current carried by the wire
A movig particle encounters an external electric field that decreases its kinetic energy from 9740 eV to 5690 eV as the particle moves from position A to position B. Determine the charge of the particle
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