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A spy in a speed boat is being chased down a river by government officials in a faster craft. Just as the officials' boat pulls up next to the spy's boat, both reach the edge of a 7.9 meter waterfall. If the spy's speed is 17 m/s and the officials' speed is 29 m/s, determine how far apart will the two vessels be when they land below the waterfall?
An ideal step-downtransformer has a primary coil of 380 turns and a secondary coil of20 turns. Its primary coil is plugged into an outlet with 115V(AC), from which it draws an rms current of 0.71 A.
A 30 ohm resistor has a voltage difference of 3 volts across its leads. What is the power being dissapated in the resistor
An elevator cab and its load have a combined mass of 1600kg. Find the tension in the supporting cable when the cab, originallymoving downward at 12m/s
The volume control on a surround-sound amplifier is adjusted so the sound intensity level at the listening position increases from 23 to 61 dB
a swimmer is capable of swimming 0.60 ms in still water.a if she aims she aims her body directly across a 55 meter wide
A drop of water on a countertop reflects light from a flower held2.6 cm directly above it. The flower's diameter is 2.0 cm, and the diameter of the flower's image is 0.19 cm. What is the focal length of the water drop, assuming that it might be treat..
The patellar tendon attaches to the tibia at the tibial tuberosity. The tibial tuberosity is 8 cm from the center of the knee joint. how large is the force in the patellar tendon
An inductor and a resistor are connected in series. When connected to a 60 Hz, 90 V (rms) source, the voltage drop across the resistor is found to be 55 V (rms) and the power delivered to the circuit is 13 W.
A 2.50 g bullet, traveling at a speed of 465 m/s, strikes the wooden block of a ballistic pendulum. The block has a mass of 275 g. What is the speed of the bullet/block combination immediately after collision.
A wheel experiences a time dependant angular acceleration given by ?(t) = 3 + 0.333t^3. Derive an expression for the angular velocity as a function of time
A syringe with a barrell with a diameter of 0.20 m is filled with water. What is the speed of the jet of water out of the syringe
a train travels due south at 30 ms relative to the ground in a rain that is blown toward the south by the wind. the
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