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A spaceship leaves Earth traveling 0.70c. A second spaceship leaves the first at a speed of 0.88c with respect to the first. Calculate the speed (including sign) of the second ship with respect to Earth if it is fired as follows.
(a) in the same direction the first spaceship is already moving
(b) directly backward toward Earth
Three equal positive point charges of magnitude Q = 6.00? C are located at three corners of a square of edge length d = 2.6 cm. A negative charge -18.00? C is placed on the fourth corner.
If, instead, the gold is drawn out into a cylindrical fiber of radius 1.5µm, what is the length of fiber.
What is the largest wavelength that will give constructive interference at an observation point 171 from one source and 295 from the other source.
Two planets are on a collision course, heading directly toward each other at 0.250c. A spaceship sent from one planet approaches the second at 0.750c as seen by the second planet. find the velocity of the ship relative to the first planet
Find the length of a side of a cube having a mass of 1.3 kg and the density of nuclear matter, taking this to be 2.3 ? 1017 kg/m3
a 1.5-kg mass attached to an ideal massless spring of spring constant of 20N/M oscillates on a horizontal, determine the total energy of the oscillating system
Needing help, secretary of the United States Department of Agriculture asked your teacher, "If a chicken and a half can lay an egg and a half in a day and a half, how many days will it takes three chickens to lay twenty eggs".
Carl and Lenny are trying to find Carl's keys that are beeping-he attached a device to beep when you whistle for this purpose, how far is Lenny from the key's
If you drop an aspirin and it takes 0.18 sec to hit the table, how high above the table was the aspirin when it released?
A heat engine, in each cycle, takes in 750 J of heat and exhausts 300 J of heat. what is the smallest possible high temperature for the engine cycle
Find the torque required to over come the viscous force in a journal bearing having Radius of journal R , angular velocity w length of the bearing L and thickness of oil film t
An individual is nearsighted; his near point is 16.0 cm and his far point is 47.0 cm. What lens power is needed to correct his nearsightedness
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