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A person on earth notices a rocket approaching from the right at a speed of 0.71 c and another rocket approaching from the left at 0.67 c. What is the relative speed among the two rockets, as gauged by a passenger on one of them?
A diverging lens (f=-10cm) is located 20.0cm to the left of a converging lens (f=30.0 cm). A 3.00cm tall object stands to the left of the diverging lens, precisely at its focal point. Decide the distance of the final image relative to the converging ..
A converging lens had a focal length f = 51cm for blue light (n=1.57). The index of refraction of this lens for red light is n = 1.49. What is the focal length for red light?
A pump draws water through a 150 mm diameter pipe from a reservoir whose surface level is at datum level and discharges it through a 100 mm diameter pipe to another reservoir whose surface level is 72 m above datum level.
An artillery shell is fired at an angle of 63.8 above the horizontal ground with an initial speed of 2000 m/s. Find the total time of flight of the shell
The drawing shows Robin Hood (mass = 76.9 kg) about to escape froma dangerous situation. With one hand, he is gripping the rope thatholds up a chandelier (mass = 224 kg). When he cuts the rope whereit is tied to the floor, the chandelier will fall..
A projectile of mass 0.868 kg is shot straight up with an initialspeed of 28.6 m/s. (a) How high would it go ifthere were no air resistance? (b) If theprojectile rises to a maximum height of only 7.53 m, determine themagnitude of the average force du..
q1. in a head-on collision a car stops in 0.24 from a speed of 25. the driver has a mass of 74 and is fortunately
When at rest a proton experiences a net electro magnetic force of magnitude 8.8 multiplied by 10-13 N pointing in the positivex direction. When the proton moves with a speed of1.4 multiplied by 106 m/s in the positivey direction the net electromagnet..
After hitting a long fly ball that goes over the right fielder's head and lands in the outfield, If the player comes to rest at third base, how much work was done on the player by friction
Water is supplied to an office building 41.5 m high through a pipe at ground level. Find the minimum pressure in the supplypipe so that water can reach the top floor of the building.
if you wanted to move an electron from the positive to the negative terminal of the battery how much work w would you
What current is in the primary circuit. A proton moves at a speed of 8.0 103 m/s as it passes through a magnetic field of 0.55 T. Find the radius of the circular path. Note down that the charge carried by the proton is equal to that of the electron..
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