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The three resistors are identical with R1 = R2 = R3= 160 ?, and the battery voltage is 50 V. What is the current through resistor R2? R2 and R3 are parallel so these need to be treated with R1 as Requiv = R1+ (R2*R3)/R2+R3 but don't know where to go from here.
what force would be needed to pull the same wooden.
Air is streaming horizontally past a small airplanes wings such that the speed is 50m/s over the top surface and 30 m/s past the bottom surface. the plane has a mass of 300 kg and a total wing area of 5 m^2(both wings).
An airoplane takeoff speed is 320km/h. if its average acceleration is 2.9m/s^2, how long is it on runway after starting its takeoff roll.
A tire of an automobile has a gauge pressure of 30 psi at the top of a mountain, and the air temperature inside the tire is 300K. The atmospheric pressure at the top of the mountain is 1.7 atm.
Assume that a binary star system consists of two stars of equal mass. They are observed to be separated by 310 million kilometres and take 4.0 Earth years to orbit about the point midway between them.
find out the magnitude of an acceleration
A space traveler weighs 565 N on earth. What will the traveler weigh on another planet whose radius is 3 times that of earth and whose mass is twice that of earth.
A 10.60 weather rocket generates a thrust of 220. The rocket, pointing upward, is clamped to the top of the vertical spring. The bottom of the spring, whose spring constant is 450, is anchored to the ground.
How much friction must be exerted between the skates and ice.
Two metal spheres, each weighing 24-kg are placed 0.05 m apart. Compute the magnitude of the gravitational force the two spheres exert on each other.
27 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 21C in an insulated cup. What will the new water temperature be?
The small piston of a hydraulic lift has a cross-sectional area of 3 cm2, and its large piston has a cross-sectional area of 200 cm2. What force should be applied to the small piston for the lift to raise a load of 15kN
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