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How much energy is required to accelerate a spaceship with a rest mass of 123 metric tons to a speed of 0.559 c?
Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 1.05 percent of this energy to accelerate spaceships, then how many missions would be possible in one year?
What is the least coefficient of friction between tires and road that will allow cars to negotiate the turn without sliding off the road.
A resistor (R = 900 ?), a capacitor (C = 0.25 µF), and an inductor (L = 3.5 H) are connected in series across a 240 Hz AC source for which ?Vmax = 145 V. Calculate the following. (a) the impedance of the circuit ? (b) the maximum current delivered by..
As a protest against the umpire's calls, a baseball pitcher throws a ball straight up into the air at a speed of 17.0 m/s. find the force he exerts on the ball to give it this upward speed
Two tugboats pull a disabledsupertanker. Each tug exerts a constant force of 1.55 x 106 N,one 20° west of north and theother 20° east of north, What is the total work they do on the supertanker
A person is pushing a wheelbarrow along a ramp that makes an angle of 34 degrees with the horizontal. What is the total force the person must apply
A particle executes linear harmonic motion in one dimension with a frequency of 0.25 Hz about the point x=0. Determine an equation of motion for this oscillator
consider an infinitely large homogeneous mixture of 235u and a moderating material. determine the ratio of
The drawing shows two situations in which charges are placed onthe x and y axes. They are all located at the same distance of 3.0 cm from the origin O.For each of the situations in the drawing, determine the magnitudeof the net electric field at the ..
a dog is initially running at 14 m/s. but is slowing down. How fast is it moving if Kinetic Energy has been reduced byhalf
A 5.17-g bullet is moving horizontally with a velocity of +340 m/s, where the sign + indicates that it is moving to the right, What is the velocity of the second block after the bullet imbeds itself
Find how large a magnetic field is needed to keep singly ionized helium atoms (4He) with kinetic energy 210 eV within the chamber
What will be the equilibrium temperature when a 268 g block of copper at 319°C is placed in a 167 g aluminum calorimeter cup containing 826 g of water at 12.3°C?
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