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An object attached to a horizontal spring is oscillating backand forth along a frictionless surface. The maximum speed is 1.25m/s, and its maximum acceleration is 6.89 m/s2 . How much time elapses between an instant when the object's speed is ata maximum and the next instant when its acceleration is at amaximum?
what are the magnitude and direction of its acceleration. find out the magnitude of the charge on the moving particle.
A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.9 g, which includes fuel mass of13.4 g. What is the average exhaust speed of the engine
two charges q1 3x10-6 and q2 -6x10-6 c are placed along the x axis at orgin and 1.2m respectivelya at what distance
question1astronomers detect a large asteroid that far away but still heading toward earth at 754 ms. a straight
A helicopter is ascending perpendicularly with a speed of 5.42 m/s. At a height of 146 m above the Earth, a package is dropped from a window. How much time does it take for package to reach the ground.
21.18 g of copper pellets are removed from a 286°C oven and immediately dropped into 198.5 mL of water at 13°C in an insulated cup
A body of mass 12kg is moving with a velocity of 1m/s.Calculate the force required to stop it in 10s. how far will it travel before coming to rest
A 2.40kg mass is pushed against a horizontal spring of force constant 26.0N/cm on a frictionless air table. The spring is attached to the tabletop, Find the greatest speed the mass reaches
In a slow-pitch softball game, a 0.200 kg softball crossed the plate at 18.00 m/s at an angle of 45.0° below the horizontal. Determine the impulse delivered to the ball
q1. two small charged metal spheres a and b are situated in a vacuum. the distance between the centres of the spheres
A 30-meter steel tape is correct at a temperature of 20.0(C). The distance between two points, as measured by this tape on a day when the temperature is 5 (C), is 25.970m. What is the true distance between the points?
what is the electric field amplitude associated with the light from a red laser pointer? assume power0.10mw with a
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