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A 8.20-kg block of ice, released from rest at the top of a 1.56-m-long frictionless ramp, slides downhill, reaching a speed of 2.58m/s at the bottom.
1.) What is the angle between the ramp and the horizontal?
2.) What would be the speed of the ice at the bottom if the motion were opposed by a constant friction force of 10.9 Nparallel to the surface of the ramp?
When subject to a steady acceleration of 0.800 g, the object must be located 0.600cm from its equilibrium position. Find the force constant required for the spring.
A railroad car of mass 2.52 x10^4 kg, is moving with a speed of 3.94 m/s. It collides and couples with three other coupled railroad cars, each of the equal mass as the single car and moving in the equal direction with an initial speed of 1.97 m/s.
A person wears a hearing aid that uniformly increases the intensity level of all audible frequencies of sound by 34.0 dB. What is the intensity delivered to the eardrum
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In a chase scene, a movie stuntman is supposed to run right off flat roof of one city building and land on another roof 1.7m lower. If the gap between the buildings is 4.4m wide, how fast must he run.
three identical light bulbs, 24 ohm each, are connected in parallel with one another. find the equivalent resistance of the three light bulbs
A uranium-fuelled research reactor has a cubic shape with sides of length 1.0 m. estimate the power out of the reactor in units of watts
What is the energy released in this nuclear reaction 47Be + 01n ? 37Li + 11H
A 775-g object undergoes an acceleration given by = (2.00 ? + 5.00 ?) m/s , find the resultant force acting on the object
In a section of horizontal pipe with a diameter of 3.0 cm, the pressure is 100 kPa and water is flowing with a speed of 1.5 m/s. What is the pressure in the narrower region
The blackbody radiation emitted from a furnace peaks at a wavelength of 3.4 10-6 m(0.0000034 m). What is the temperature inside the furnace
Consider a generator with a 300 turn coil on its armature and a uniform magnetic field of 4.6 T. The diameter of the coil is8.0 cm, In order to generate 385 VRMS, how fast do we need to rotate the coil
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