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two parallel wires have a current of 22A flowing through each oneof them. when the wires are placed 25cm apart, the exert a force of 2.7x10-4N on each other. find the length of the wires.
A wire is 3.500 m long. After applying a force to one end of the wire, it is now 3.504 m long. Calculate the tensile strain in the wire
A luminous object is 3.40m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
After flying for 15 min in a wind blowing 42 km/h at an angle of22°south of east, What is the speed of the airplane relative to the air
A shower head has 20 circular openings, each with radius 0.80mm. The shower head is connected to a pipe with radius 1.0cm. what is its speed as it exits the shower-head openings
A 2500lb car collides with a 25,000 lb truck. What force is exerted on the car by the truck
You decide to drop a bar made of a steel cylinder (Y = 6.0 × 1010 Pa) from a height of 1.20 m, what is the maximum compression of the bar
Copper at 20C has a resistivity of 1.72x10^-8 ohm-m. A potential difference of 2.0V is applied to a 1.00m long copper wire of radius 0.200mm. Find the resistance of the wire
A wrecking ball is hanging at rest from a crane when suddenly the cable breaks. Find the time it takes for the ball to fall from rest all the way to the ground
If a hot air balloon floats at a constant elevation (it has reached equilibrium) where the local atmospheric pressure is 98 kPa (abs) and outside air temperature is 285 K, and the hot air inside the balloon is at 400 K
A heat engine takes 0.200 moles of an ideal gas around the cycle shown Step 1 to 2 is a constant volume process. Step 2 to 3 is adiabatic. Find the net work done by the gas in one cycle
What was the temperature of the water before the insertion of the thermometer.
A 0.600 kg hammer is moving horizontally at 8.00 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. What was the average force exerted on the nail
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