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When a battery is connected to a 1.75 ? resistor the current flow through the circuit is 0.810 A; when the same battery is connected to a 1.50 ? resistor the current flow is 0,926 A. Determine the internal resistance of the battery and the voltage supplied by the battery.
What mass (in grams) of steam at 100°C must be mixed with 251 g of ice at its melting point, in a thermally insulated container, to create liquid water at 66.0°C? The specific heat of water is 4186 J/kg·K. The latent heat of fusion is 333 kJ/kg, an..
When a high speed passenger train traveling at 113 km/h rounds a bend, the engineer is shocked to see that a locomotive has improperly entered onto the track from a siding and is a distance D = 642m ahead.
A 61.0 kg skier encounters a dip in the snow's surface that has a circular cross section with a radius of curvature of 12.0 m .If the skier's speed at point A is 7.50 m/s (before entering dip), what is the normal force exerted by the snow on the skie..
A 3.70g bullet moving at 250m/s enters and stops in an initially stationary 3.50kg wooden block on a horizontal frictionless surface, How much work was done in stopping the bullet
Two long, parallel wires are separated by a distance of 3.40. The force per unit length that each wire exerts on the other is 3.20×10-5, and the wires repel each other. The current in one wire is 0.6690.
If a person radiates about 65.00 W of power at room temperature, how long does it take for a person to radiate away the energy acquired by consuming a 230 Calorie donut.
A 2.20 kg frictionless block is attached to an ideal spring with forces constant 314N/m. At first the block has velocity -3.60 m/s and displacement 0.300-m.
How much work should be done to bring 3 electrons from a great distance apart to within 2.55E-10 m from one another (at the corners of an equilateral triangle).
What must your average speed over the next 10 miles be to have your average speed for the total 20 miles be 13m/h? c)Given this average speed for the first 10 miles, can you possibly attain an average speed of 14for the total 20-mile ride?
Four 1.8 kg masses are located at the corners of a square 0.20 m on each side. Find out the magnitude and direction of the gravitational force on a fifth 1.8 kg mass placed at the midpoint of the bottom side of the square.
How far above the aim is the point
What is the speed of crate hit ground
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