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Solar Cell A solar cell generates a potential difference of 0.10 V when a 600 resistor isconnected across it, and a potential difference of 0.15 V when a1150 resistor is substituted.
a) What is the internal resistance?b) What is the emf of the solar cell?c) The area of the cell is 5.0cm2, and the rate per unit area at which it receivesenergy from light is 2.0 mW/cm2. What is the efficiencyof the cell for converting the light energy to thermal energy inthe 1150 externalresistor?
Ocean waves pass through two small openings, 21 m apart, in a breakwater. You're in a boat 76 m from the breakwater and initially midway between the openings, What is the wavelength of the ocean waves
A Porsche 944 Turbo has a rated engine power of 217 . 30% of the power is lost in the drive train, and 70% reaches the wheels. The total mass of the car and driver is 1500 , and two-thirds of the weight is over the drive wheels.
An infinitely long line of charge has a linear charge density of 4.50×10^?12 C/m. How close does the proton get to the line of charge
Temperatures are often measured with electrical resistancethermometers made of platinum wire. What is the temperature of the boiling chlorine
A 4.22 box sits at rest at the bottom of a ramp that is 7.74 long and that is inclined at 40.0 above the horizontal. The coefficient of kinetic friction is 0.40, and the coefficient of static friction is 0.50.
Find out the coefficient of kinetic friction between the child and the slide if the slide is inclined at an angle of 35.0 below the horizontal.
A very light rigid rod of length 0.600 m extends straight out from one end of a metre long rod of mass M. Determine the period of oscillation of the system
At which wavelengths (or energies) will you observe lines in infrared absorption (a phonon absorbs a photon) and raman scattering spectra? The temperature is 300 k. raman scattering is excited with a cw Argon laser at 514.5 nm.
An archer shoots an arrow horizontally at the target 14 m away. The arrow is aimed directly at the center of target, but it hits 59 cm lower.
Find out the wavelengths of the light.
A 65.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the maximum distance the spring is compressed
A 1391.3 kg car is traveling at 29.8 m/s when the driver takes his foot off the gas pedal. It takes 4.9 s for the car to slow down to 20 m/s. How large is the net force slowing the car? Answer in units of N
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