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A mass of 7 kg is placed at rest on an incline with friction with no other additional forces acting on it. The coefficient of attic friction is 1.37 and the coefficient of kinetic friction is 0.65. The angle of the incline is raised slowly from a smaller angle to a larger one. At what angle does it begin to slide in degrees?
A solenoid of 200 turns carrying a current of 2 Amp has a length of 25 centimeter. Find the magnitude of the magnetic field at the center of the solenoid
An astronaut on a distant planet wants to decide its acceleration due to gravity. The astronaut throws a rock straight up with a velocity of + 18.3 m/s and gauges a time of 23.9 s before the rock returns to his hand. What is the acceleration (directi..
An atomic nucleus initially moving at 420 m/s emits an alpha particle in the direction of its velocity and the remaining nucleus slows to 350 m/s. find what speed does the alpha particle have when it is emitted
An electron of kinetic energy 1.44 keV circles in a planeperpendicular to a uniform magnetic field. The orbit radius is 22.7cm. Find (a) the electron's speed,(b) the magnetic field magnitude,(c) the circling frequency (in Hz), and(d) the period of th..
Imagine holding an air-filled 2 L soda bottle (V = 2000 cm3) underwater. You have used a scale to determine that the mass of the soda bottle is mbottle = 50 g. what force is required to hold it underwater
for water nred1.331 and nblue1.340. what are the underwater angles of refraction for the red and blue components of a
a 327 kg satellite is in circular orbit around the earth and moving at a speed of 2.61 kms. how much work must be done
Explain The Bohr Model is a physical model that depicts the atom as a small positively charged nucleus with electrons in orbit at different levels, similar in structure to the solar system. Because of its simplicity, the Bohr model is still common..
A particle moves along a circular path of radius "R" in the clockwise direction, as indicated in the graph below. If we know that the speed of the particle is continuously increasing, draw the corresponding velocity and acceleration vectors when t..
An airplane is flying with a velocity of 95m/s at an angle of 19.0^circ above the horizontal. When the plane is a distance 124m straight above a dog that is standing on level ground, suitcase drops out of luggage compartment.
The drawing shows a block at rest on an incline. What is the static frictional force that acts on the block
A ship sets out to sail to a point 182-km due north. An unexpected storm blows the ship to a point 158-km due east of its starting point. How far must it now sail to reach its original destination.
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