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A parallel-plate air capacitor of area 15 cm2 and plate separation 2 millimeter is charged by a battery to a voltage 60.0 V. If a dielectric material with κ = 3.20 is inserted so that it fills the volume between the plates (with the capacitor still connected to the battery, keeping the voltage different constant), find how much additional charge will flow from battery onto the positive plate?
Three moles of an ideal monatomic gas expand at a constant pressure of 2.70 ; the volume of the gas changes from 3.40×10?2 to 4.60×10?2 . First calculate the initial temperature of the gas. Second calculate the final temperature of the gas. Thrid ..
A pulsed ruby laser emits light at 694.3 nanometer .Consider an 11.7 ps pulse containing 7.38 J of energy. Calculate the number of photons in it
Use 9.81 for the magnitude of the acceleration due to gravity.
If 3.00multiplied by10-3kg of gold is deposited on the negative electrode of an electrolytic cell in a period of2.73h, what is the current in the cell during that period
A spring is resting vertically on a table. A box is dropped onto the top of the spring and compresses it. Obtain the magnitude of the spring displacement at an instant when the acceleration of the box is zero
An insect that is 5.90 mm long is placed 11.5 cm from a converging lens with a focal length of 12.0 cm. The position of the image is 276 cm from the lens and the size of the image is 141.6 mm. What is the angular magnification if the lens is close to..
A field mouse trying to escape a hawk runs east for 6.0m , darts southeast for 3.8m , then drops 1.8m down a hole into its burrow
a series of object are being rotated. the same net torque is being applied to each object. rank the object in order of
A man is dragging a trunk up the loading ramp of a mover's truck. The ramp has a slope angle of 20.0 ? , Find the vertical component of the force
A Molecule of DNA is 2.17 um long. The ends of the molecule become strongly ionized: negative on one end, positive on the other. The helical molecule acts like a spring and compresses 0.78% upon becoming charged. Determine the effective spring con..
A rock is thrown horizontally from a bridge by a velocity of 13.0 m/s. it takes the rock 3.5 s to strike the water below. What is the magnitude of the velocity of the rock just before it hits the water?
Apply Newton's second law to the elevator and find the maximum upward acceleration for the elevator if the cables are not to break? Please Help Guys
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