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A 1.00 kg block Is resting against a light, compressed spring at the bottom of a rough plane inclined at an angle of 30 degrees. Kinetic friction between box and plane is 0.100. Suppose the spring is compressed 10 cm from its equilibrium length. The spring is then released and the block separates from the spring and slides up the incline a distance 2.00 cm beyond spring normal lenth. What is the mechanical energy of system and the spring constant k?
Two tiny conducting spheres are identical and carry charges of -29.4C and +70.0C. What is the magnitude of the force that each sphere experiences
An electron moves in a circular path perpendicular to a constant magnetic field with a magnitude of4.50mT. The angular momentum of the electron about the center of the circle is4.00multiplied by10-25J·s. Determine the radius of the circular path
A pair of eyeglasses has an index of refraction nglass = 1.52. It is covered with an antireflection layer that has a thickness of 120 nm, what is its index of refraction
A 731 kg car moving at 29 m/s brakes to a stop. The brakes contain about 13 kg of iron that absorb the energy. What is increase in temperature of the brakes
A car traveling east and a minivan traveling south collide in a completely inelastic collision at a perpendicular intersection. what is the speed of the vehicles immediately after collision
A 0.900m -diameter vat of liquid is 2.60m deep. The pressure at the bottom of the vat is 1.40atm
An FM radio station broadcasts an oscillating radio wave, What is the frequency of the oscillations in the radio transmitter
A perfectly reflecting flat mirror is uniformly illuminated by light striking it perpendicularly. Calculate the intensity of the light
q1. suppose we had a rubber ball like the ones used for racquetball and put it inside a container with liquid nitrogen.
A body of mass 5.0 kg is suspended by a spring, which stretches 10 cm when the mass is attached. What is its position as a function of time
A series RLC circuit has a peak current of 4A with a frequency of 32kHz, determine the average power of the circuit over one cycle
In the figure below, two particles are launched from the origin of the coordinate system at time t = 0. Particle 1 of mass m1 = 5.00 g is shot directly along an x axis (on a frictionless floor), where it moves with a constant speed of 13.0 m/s. Pa..
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