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A 1400 kg car enters a passing zone and accelerates from 70km/h to 95 km/h to pass a slower car. How much work must be done on the car? If the car then brakes to a stop, how much work is done on it?
The nucleus of an atom has a radius of about 5.1×10-15 m. The electron is normally at a distance of about 6.2×10-11 m from the nucleus, Find the volume of the nucleus
A car can decelerate at -5.00 m/s2 with outskidding when coming to rest on a level road. What would be the magnitude of its deceleration if the road were inclined at12° uphill? Assume the same staticfriction coefficient.
Find the rms voltage across each element in an RLC circuit with R= 9.8kilo ohms , C= 0.17microF , and L= 25mH . The generator supplies an rms voltage of 150V at a frequency of 65.0Hz .
A 18 liter tank of helium is at a pressure of 192 kPa at a temperature of 0 C. A.) How many moles of helium are there in the tank? B.) If the volume of the tank expands to twice its initial volume at constant pressure, what is the new temperature?..
Energy is required to move a 1530 kg mass from the Earth’ssurface to an altitude 2.43 times the Earth’s radius RE. The acceleration of gravity is 9.8 m/s2. What amount of energy is required to accomplish this move?
a stone is dropped into a well and a splash is heard 2 seconds later. if the speed of sound in air is given as 343ms
A capacitor is discharged when a wire is connected across its terminals, How much energy is released for a 1.00 uF capacitor with 10.0 V across its plates
In the circuit shown in the figure (Figure 1) the current through the 12.0-V battery is measured to be 70.6 mA in the direction shown
A slinky with N even loops of area A is L long. You hook it up to a circuit and increase the current at a rate of 2.0 A/s, Now calculate the new induced EMF
A rigid tank contains 1.40 moles of an ideal gas. Determine the number of moles of gas that must be withdrawn from the tank to lower the pressure of the gas from 27.2 atm to 5.90 atm
On vacation, your 1350 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 2.15 m/s2. (a) What is the net force exerted on the trailer? (b) What force does the trailer exert on the car? (c) What is the net force acting on ..
You and a friend each drive 67 km. You travel at 88.1 km/h, your friend at 952.6 km/h. How long would your friend wait for you at the end of the trip.
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