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a) What is the net force acting on an object with a mass of 10 kilograms, falling at a constant downward velocity of 15 meters per second (15 m/s)?
b) What is the net force acting on an object with a mass of 10 kilograms, falling with a downward acceleration of 15 meters per second squared (15 m/s2)?
a metal sphere of radius 20 cm has a net charge of 6.0 x 10-8 c.a what is the electric field at the spheres surface?b
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 56.03 diopters, and the lens-to-retina distance is 1.827 cm. How far is the blackboard from her eyes
An astronaut travels to Mars with a speed of 8400 m/s. After 1 month (30.0 days) of travel, as measured by clocks on Earth, how much difference is there between the Earth clock and the spaceship clock? Give your answer in seconds.
An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. determine the electrons velocity after it moves
A nail projects 25.0 mm horizontally outward from a wall. A 400 N picture is hung from the end of the nail, what is the diameter of the nail
A 1245-N uniform beam is attached to a vertical wall at one end and is supported by a cable at the other end. A W = 1955-N crate hangs from the far end of the beam.
An object of mass 6.8 Kg is attached to a spring of force constant 1830 N/m. find the maximum velocity the object has during its motion
Determine maximum and minimum speeds of particles of the cord - What are these temperatures in Celsius?
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. He is closer to one cliff than to the other. compute the distance between the cliffs
A wedge of mass M and angle ? is placed on a flat frictionless surface. A crate of mass m is placed on the wedge at height h and starts sliding down the wedge without friction. Find the acceleration of the crate and the wedge relative to the gr..
q1. an airplane is flying with a velocity of 83.0 at an angle of 25.0 above the horizontal. when the plane is a
1 three capacitors 4.0 6.0 and 8.0 microf are connected in series across a 50.0-v battery. find the voltage across the
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