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Question: A rocket engine is designed to push with a force of 1000 N on a 100 kg mass. Assuming this force and the velocity of this mass are always in the same direction,
Part A: How far must the mass be pushed to reach v/c= 0.25?
I want help to find how far the mass must be pushed to reach v/c= 0.25 and hint- use the work-kinetic energy theorem with work just force times distance.
In moving a 45.0kg desk from one side of a classroom to the other, a professor finds that a horizontal force of 295N is necessary to set the desk in motion, What is the coefficient of static friction between the desk and the floor
A slit of width 2.0 ?m is used in a single slit experiment with light of wavelength 650 nm. If the intensity at the central maximum is Io, what is the intensity 10° from the center?
A gnat takes off from one end of a pencil and flies around erratically for 39.6 seconds before landing on the other end of the same pencil. If the gnat flew a total distance of 6.15 meters, and the pencil is 0.0813 m long, discover the gnat\'s averag..
while walking between gates at an airport you notice a child running along a moving walkway. estimating that the child
fred wants to figure out how much extra it cost him to heat his house at 75.00 f so he does an experiment. he picks a
A solid, uniform sphere of mass 2.0 kg and radius 1.7 m starts from rest and rolls without slipping down an inclined plane of height 5 m. What is the angular velocity of the sphere
Experimenters at the National Institute of Standards and Technology have made precise measurements of the speed of light using the fact that, in vacuum, the speed of electromagnetic waves is c = 1/?(µ0?0), where the constants µ0 = 4? multiplied by..
A starship moving toward Earth with a speedof 0.77 claunches a shuttle craft in the forward direction. What is the speed of the shuttle relative to the starship
q1. a box is sliding up an incline that makes an angle of 27.7 deg regarding the horizontal. the coefficient of kinetic
You run a microwave for 6 minutes together with a 1500 W boom-box and a 2800 W space heater. What is the power of your microwave
A tennis player hits a 58.0g tennis ball so that it goes straight up and reaches a maximum height of 7.05m . A) How much work does gravity do on the ball on the way up? B) How much work does gravity do on the ball on the way down?
An air-filled parallel plate capacitor with a plate spacing of 1.70 cm has a capacitance of 4.70 ?F. Calculate the dielectric constant of the inserted material
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