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Two 2 cm * 2 cm metal electrodes are spaced 1.7 mm apart and connected by wires to the terminals of a 9.0 V battery.
1. The wires are disconnected, and insulated handles are used to pull the plates apart to a new spacing of 3.4 . What is the charge on each electrode? Express your answer using two significant figures.
2. What is the potential difference between electrodes? Express your answer using two significant figures.
An astronaut in a rocket passes a meter stick moving parallel to its long dimension. How fast is the rocket moving with respect to the meter stick
q1.an green hoop with mass mh 2.4 kg and radius rh 0.14 m hangs from a string that goes over a blue solid disk pulley
A person who weighs 600 N is riding a 98 Nmountain bike. Suppose the entire weight of the rider and bike is supported equally by the two tires. If the gauge pressure in eachtire is 8.05*105 Pa, what is the area of contact between each tire and the ..
A train with a maximum speed of 60 mph travels between two stations 10,000 ft apart. It has an acceleration rate of 4.00 ft/s2 and requires a distance of 1500 ft. to stop from 60 mph. Sketch (a) acceleration-time, (b) velocity-time, (c) displacement-..
Your cell phone typically consumes about 440 mW of power when you text a friend. what is the current flowing through the cell-phone circuitry under these circumstances
A object of mass 3.00 kg is subject to a force Fx that varies with position as in the figure below. Find the work done by the force on the object
A copper wire, 1 m long, has a density of 0.020 g/cm and vibrates in 4 segments when under tension produced by a 250 g hanging mass
Starting from rest, a 6.70 kg object falls through some liquid and experiences a resistive (drag) force that is linearly proportional to the velocity of the object. What is the terminal speed for this object in this liquid
An aircraft engine takes in an amount 9000 of heat and discards an amount 6400 each cycle. What is the mechanical work output of the engine during one cycle
After a shipwreck, a solid steel spoon lies at the bottom of the ocean, 5.45km below the surface, What's the water pressure at that depth
The area of a room floor is 25ft^2. How many square meters are on the floor? a)7.6m^2 b)2.3m^2 c)82m^2 d)2.6*10^2m^2 e)none
What is acceleration due to gravity
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