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The negative terminals of three batteries (3V, 6V, 9V) are each connected to a 150 ohm resistor. The other sides of each resistor are connected together. The positive terminals are each connected together. If the wire to the negative terminal of the 6 volt battery breaks so that no current can flow, what is the voltage across the gap in the broken wire? Which end is at the higher potential?
When a 0.213-kg mass is attached to a vertical spring it causes the spring to stretch a distance d. Find the stretch distance, d
he lower block in the figure is pulled on by a rope with a tension force of 20 N. The coefficient of kinetic friction between the lower block & the surface is 0.30. The coefficient of kinetic friction between the lower block & the upper block is a..
The small piston of a hydraulic lift has a cross-sectional area of 3 cm2, and its large piston has a cross-sectional area of 200 cm2. What force should be applied to the small piston for the lift to raise a load of 15kN
Neglect air resitance. Find rocket's kinetic energy when the rocket is 1000 km above Earth's surface. Illustrate what is the max heigh that the rocket reaches.
There is evidence that elephants communicate via infrasound, Determine the intensity level of the infrasound 10 km from the source, assuming the sound energy radiates uniformly in all directions
Assuming a constant pressure gradient, if blood flow is reduced by 52%, by what factor is a blood vessel decreased in radius
Every day our Earth receives 1.55×1022 J energy from the Sun. If we were able to use 0.85 percent of this energy to accelerate spaceships, then how various missions will be possible in one year.
A 196.3 kg satellite is in a circular orbit of 26,273 miles (42,300,000 m) in radius. The force keeping the satellite in orbit is 40.1 N
Two point charges lie on the x-axis: 1.80uC at x=1.15m, Find the place(s) where the electric field is zero
The magnetic field component of the electromagnetic wave is 15.0 microT. What is the magnetic energy density of the wave
A diverging lens with f = -25.5cm is placed 16.5cm behind a converging lens with f = 22.0cm. Where will an object at infinity be focused
The critical angle for total internal reflection for glycerine surrounded by air is 42.9°. Calculate the index of refraction of the substance
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