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A 140 kg astronaut (including space suit) acquires a speed of2.50 m/s by pushing off with his legs from an 1800 kg spacecapsule.
(a) What is the change in speed of the space capsule?
(b) If the push lasts 0.500 s, what is the average force exerted byeach on the other? As the reference fram, use the position of thecapsule before the push.
A force vector points at an angle of 64.9 ° above the +x axis. It has a y component of +276 Newton's (N). Find out (a) magnitude and (b) x component of the force vector.
Light enters a substance from air at 30 degrees to the normal. It continues through the substance at 23 degrees to the normal. What would be the critical angle for this substance
Two cars approaching each other collide and stick together after the collision. What was the initial velocity of the second car
A 3kg object moving along the positive x direction with a speed of 10m/s exploeds into a 2kg and a 1kg fragments. what is the speed of the 2kg fragment?
Monochromatic light falling on two slits 1.9×10?2mm apart produces the fifth-order fringe at an 8.9? angle
A string is wrapped around a pulley with a radius of 2.0cm. The pulley is initally at rest. Find the angular acceleration at which the string unwinds
A bicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting down hill. what is the rider's total mechanical energy when he coasts to a height of 25.0 m above sea level
The top of the pool table is 3.05 ft from the floor. The placement of the tape is such that 0 feet aligns to the edge of the table (as shown). The winner of the competition wants to know if he has broken the world record for the break shot of 32 mph...
A child goes down a playground slide with an acceleration of 1.30. Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 34.0 below the horizontal.
A 3.8-kg block of iron (c=0.11 kcal/kgoC) that has been brought to a temperature of 1,078oC is placed on top of a 2.4-kg block of ice (c=0.5 kcal/kgoC) that has been cooled to -50oC
question1in a ldquorotor-riderdquo at a carnival people rotate in a vertical cylindrically wallednbspldquoroom.rdquo if
Billy throws a ball straight up and it rises 22 meters into the sky. With what initial velocity must he have thrown the ball
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