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Typical household currents are on the order of a few amperes.
A. If a 1.64 A current flows through the leads of an electrical appliance, how many electrons per second pass through it?
B. If a 1.64 A current flows through the leads of an electrical appliance, how many coulombs pass through it in 5.00min ?
C. If a 1.64A current flows through the leads of an electrical appliance, how long does it take for 7.50 C of charge to pass through?
Two metal balls are hung from strings. The first ball, 0.1 kg, is pulled to the side and released so that it strikes the second ball with a speed of 1.56 m/s. What is the mass of the second ball
a person exerts force of 35n on the end of an door 88 cm wide, what is the magnitude of torque if the force is exerted perpendicular to the door
A uniform plank of length 2m and mass 29kg is supported by three ropes, as indicated by the blue vectors. Find the tension in each rope when a 690N person is 0.500m from the left end.
Discuss in detail why it might be dangerous to microwave raw eggs with their shell intact using the concepts learnt today (Hint: pV = nRT).
A bicycle break pad is pushed against the moving rim of the wheel with a force of 80 N and the dynamic coefficient of friction is 2.2, What is the shear modulus of the rubber that the pad is made from
The company's tax rate is 30% and its discount rate is 15%. Illustrate what is the net present value of the asset?
A laser beam is traveling through an unknown substance. When it encounters a boundary with air, the angle of reflection is 23.0° and the angle of refraction is 40.0°. What is the speed of light in the substance
Two 5.0-cm-diameter metal disks separated by a0.61-mm-thick piece of Pyrex glass are charged to a potential difference of 1300V. What is the surface charge density on the glass
An 81-kg person puts on a life jacket, jumps into the water, and floats. The jacket has a volume of 3.1 *10^-2 m^3 and is completely submerged under the water. What is the density of the life jacket
Three charges are positioned on a line. Q1= -2uC, Q2= +5uC, Q3= +3uC. The distance between Q1 and Q2 is a=0.25m. Find the direction of the electric force acting on the charge
A 1420-kg car is being driven up a 7.52 ° hill. The frictional force is directed opposite to the motion of the car and has amagnitude of 514 N. A force F is appliedto the car by the road and propels the car forward. In addition to these two forces..
The heaviest and lightest strings on a certain violin have linear densities of 3.0 and 0.29 g/m. What is the ratio of the diameter of the heaviest string to that of the lightest string, assuming that the strings are of the same material?
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