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A car of mass 1330 kg is traveling at 28.0m/s. The driver applies the brakes to bring the car to rest over adistance of 79.0 m. Calculate the retarding force acting on the car.
A battery having an emf of 11.10 V delivers 102 mA when connected to a 61.0 load. Find out the internal resistance of the battery.
1 calculate the per capita energy use for china and india. the populations of each country should be obtained from
Air at 25 oC blows over a heated steel plate with its surface maintained at 200 oC. Calculate the heat loss per hour from the top surface of the plate
a point charge causes an electric flux of -570 nmiddotm2c to pass through a spherical gaussian surface of 24.0 cm
A car of mass 840.0 kg accelerates away from an intersection on a horizontal road. Calculate the acceleration of the car at that time
what is ideal efficiency ? calculate the ideal efficiency of an engine wherein fuel is heated to 2700 K and the surrounding air is 300 K
Jumping up before the elevator hits. After the cable snaps and the safety system fails, an elevator cab free-falls from a height of 33.0 m. determine the magnitudes of the impulse
Light in a transparent material (index of refraction 1.333) strikes the boundary with another transparent material (n = 1.010). What is the critical angle for total internal reflection
At the end of the run, she is 175 m away from the starting point at an angle of 15.0° north of west. Illustrate what were the direction and length of her second displacement? Use graphical techniques.
A 2.30 kg object attached to a spring moves without friction and is driven by an external force given by F = (3.00 N) sin(2pt). If the force constant of the spring is 25.0 N/m, determine the period
The acceleration due to gravity on the Moon's surface is one-sixth that on Earth. What does it weigh on the moon
A coil of wire has a resistance of 38.0 ? at 25° C and 43.7 ? at 52° C. What is the temperature coefficient of resistivity
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