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A flash unit for a camera has a capacitance of 1300microF.
part a) What resistance is needed in this RC circuit if the flash is to charge to 90% of its full charge in 20s?
a 550-kg car traveling at 24.0 m/s collides head on on with a 680-kg pick up truck. what is the momentum of the car before collision
A ball traveling with an initial momentum of 3.5 kg•m/s bounces off a wall and comes back in the opposite direction with a momentum of -3.5 kg•m/s
At 12 volt battery is connected in parallel with a 100,200,and 500 resistors. How much current flows through each resistors
The work done by an external force to move a -8.90charge from point a to point b is 1.80×10?3 . If the charge was started from rest and had 4.87×10^4 of kinetic energy when it reached point b, what must be the potential difference between a and b?
You drop a 14g ball from a height of 1.5 m and it only bounces back a height of 0.85m. What is the total impulse on the ball when it hit the floor
A broken piano emits frequencies from a low of 32.0 Hz to a high of about 4100 Hz. What is the shortest wavelength if the speed of sound in air is 342.50 m/s? Record the answer to three decimal places and include units in the answer.
A hospital patient has been given 131-I (half-life = 8.04 days) which decays at 6.2 times the acceptable level for exposure to the general public
A fully loaded station wagon has a mass of 1690 kg. If each of its four tires is inflated to a gauge pressure of 211 kPa, what is the total tire area in contact with road.
Suppose a tank contains 737 m3 of neon (Ne) at an absolute pressure of 1.01 105 Pa, What is the increase in the internal energy of the neon
Potential energy of a not obeing Hooke's law spring is given by the equation U(x)=5.00(J/m)x - 2.00(J/m3)x3, What is the expression for the restoring force of the spring
The drag coefficient, D, for a spherical raindrop with a radius of 0.445cm falling at its terminal velocity is 1.74×10?5kg/m. Calculate the raindrop's terminal velocity in \rm m/s
There has long been an interest in using the vast quantities of thermal energy in the oceans to run heat engines. What is the maximum possible efficiency of such a power plant
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