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A block of wood of mass 0.938 kg is initially at rest. A bullet of mass 0.0492 kg traveling at 107 m/s strikes the block and becomes embedded in it. With what speed do the block of wood and the bullet move just after the collision?
A transmitter is operating at 4.00 kW of power. what is the average intensity of the signal 8.00 km from the transmitter
Suppose your waffle iron is rated at 0.85 kW when connected to a 2.10 102 V source. What current does the waffle iron carry
The model airplane in figure below is flying at a speed of 19 m/s on a horizontal circle of radius 17 m, What is the net work done on the plane
How many elections Paris would we have to remove before the electrostatic repulsion between the earth and moon would go over their gravitational attraction.
In a head-on collision, the car stops in 0.23 {rm s} from a speed of 17 {rm m}/{rm s}. The driver has a mass of 77 {rm kg}, and is, fortunately, tightly strapped into his seat. What force is applied to the driver by his seat belt during that fract..
A point source of light lies at the bottom of a large pool of water. How deep is the pool
A particular myelinated axon has nodes spaced 0.80mm apart. The resistance between nodes is 21M?; the capacitance of each insulated segment is 1.3pF .
A thin, metallic, spherical shell of radius a = 7.0 cm has a charge qa = 2.00×10-6 C. What is the charge on the outer surface of the outer shell
A person in a kayak starts paddling, and it accelerates from 0 to 0.8 miles/hour in a distance of 0.8 km. If the combined mass of the person and the kayak is 80 kg, what is the magnitude of the net force acting on the kayak
A mass of 1.2 kg is attached to a single spring and set into oscillation. The period of the spring oscillation is measured to be 4.80 seconds. What is the phase constant for the oscillation
A child on a sled starts from rest at the top of a 15.0 degree slope. If the trip to the bottom takes 15.2s, how long is the slope
A 45kg figure skater is spinning on the toes of her skates at 0.50rev/s . Her arms are outstretched as far as they will go. In this orientation, What is her new rotation frequency, in revolutions per second
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