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Two spaceships are traveling in the same direction. With respect to an inertial frame of reference, spaceship A has a speed of 0.900c. By respect to the similar inertial frame, spaceship B has a speed of 0.500c. Discover the speed vAB of spaceship A relative to spaceship B.
A 5 litters cylinder contains oxygen at 20 C, and 101 kpa. if the temperature increases by 15 C, what is the final temperature of the gas?
The potential energy stored in the compressed spring of a dart gun, with a spring constant of 66.50 N/m, is 1.040 J.Find by how much is the spring is compressed.
A barber's chair with a person in it weighs 2100N. The output plunger of a hydraulic system begins to lift the chair when the barber's foot applies a force of 55N to the input piston.
Occasionally, huge icebergs are found floating on the ocean's currents. Suppose one such iceberg is 125 km long, 32.6 km wide, and 159 m thick. (a) How much heat in joules would be required to melt this iceberg (assumed to be at 0 °C) into liquid ..
the current flowing in a solenoid that is 23.9 cm long and has a radius of 2.20 cm and 530 turns decreases from 3.31 a
A force Farrowbold applied to an object of mass m1 produces an acceleration of 3.10 m/s2, What is the value of the ratio m1/m2
A beam of light is polarized in the horizontal direction and has an intensity I. It then passes through a polarizer oriented at an angle of 39 degrees from the horizontal direction. What fraction of the original intensity I pass through this polarize..
point a is at position 4j -3kcm. point b is at position -3cm k. point c is at position 3i -2j 5k cm. point d is at
An ice skater slides (without pushing) across a frozen pond for 25.0 m before coming to a stop. If the coefficient of kinetic friction is 0.050, how fast was the skater initially moving
a soccer ball is kicked from the ground with an initial speed of 19.1 ms at an upward angle of 45deg. a player 50.0 m
If the spring constant k = 5.0\times 10^2 \rm \;{N/m}, the baby has a mass m = 11\;{\rm kg}, and the baby's legs reach a distance d = 0.15\; \rm m from the bouncer, what should be the height h of the "empty" bouncer above the floor?
A worker is poling a ship across a shallow lake. He pushes parallel to the length of the light pole exerting on the bottom of the lake a force of 235 Newton. Calculate the magnitude of this force
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