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Water has a mass mole of 18.0g/mol, each water molecule(H20) has 10 elelctrons.
a) How many electrons are there in one liter (1.00 x10-3m-3) of water?b) What is net charge of all electrons?
The femur is a bone in the leg whose minimum cross-sectional area is about 3.60 multiply.gif 10-4 m2. Find the maximum stress that this bone can withstand
An immersion heater used to boil water for a single cup of tea plugs into a 120 V outlet and is rated at 300 W. What is the Resistance of the Heater
A new type of personal scale is designed where the person stands on top of a platform supported by a rubber cylinder which has a radius of 5 cm and a height of 10 cm. What is the mass of the person
A wrecking ball (weight = 5010 N) is supported by a boom, which may be assumed to be uniform and has a weight of 3670 N. As the drawing shows, a support cable runs from the top of the boom to the tractor.
A baseball is bunted down the third-base line leaving the bat from a height of 0.850m with an initial velocity of 4.00m/s at an angle of 37.87° above horizontal.
A 3 MH inductor and a 4 capacitor are in an LC circuit. The capacitor is charged to 5 and then the switch is closed. a. Sketch the graphs of q(t) and I(t). b. Calculate the period of oscillation. c. Calculate the potential energy in the circuit. d. C..
An air puck of mass \(m_{1}\) is tied to a string and allowed to revolve in a circle of radius R on a frictionless horizontal table. determine the radial force acting on the puck
One section of a steel railroad track is 27 m long. If its temperature increases by 22 K during the day, how much does the track expand
Consider a 1112 kg automobile as it passes over a hill on a road that follows the arc of a vertical circle of radius 48 m near its top. Find the normal force acting on the car when the car is at rest
A student is about to do a push-up. Her center of gravity lies directly above P on the floor, which is 0.9 m from her feet and 0.5 m from her hands. what is the force exerted by the floor on her hands
at a particular instant a rock is flying with velocity 5i-4j4k ms relative to the ground. here i j and k are unit
an isolated cylindrical capacitor consists of two concentric conducting cylinders of length l. the innder cylinder has
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