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A stone is dropped from the roof of a high building. A second stone is dropped 2.50 s later. How far apart are the stones when the second one has reached a speed of 10.0 m/s?
Light from the sun allows a solar cell to move electrons from the positive to the negative terminal, determine the emf of this solar cell
(a) How much charge can be placed on a capacitor with air between the plates before it breaks down if the area of each plate is 6.00 cm2? (b) Find the maximum charge if bakelite is used between the plates instead of air.
a playground merry go round has a radius of 4.40 m and a moment of inertia of 245kg.m^2 and turns with negligible friction about a vertical axle through is center. What is the average power supplied by the child
Diffraction also occurs with sound waves. Consider 1400-Hz sound waves diffracted by a door that is 93 cm wide. What is the angle between the two first-order diffraction minima
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What should be the tension in the wire if it is to take 0.8 seconds for a pulse to travel along the wire from one pole to the other.
if you add 1 kg of stainless steel at 100 degrees celsius to 5 kg water at 20 degrees celsius, What is the specific heat of stainless steel
At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m flat starting stretch. What is the speed of the sled right before the team jumps on the sled
Light passes through a 230 lines/mm grating and is observed on a 1.0m wide screen located 1.3m behind the grating. Three bright fringes are seen on both sides of central maximum.
how much time in seconds will it take the officer. A 63 resistor is connected in parallel with a 115.0 resistor. This parallel group is connected in series with a 19 resistor. The total combination is connected across a 15.0 V battery. Find the cur..
The electric field within the membrane separating the inside and outside of a biological cell is approximately 7.5 MV/m and is essentially uniform. what is the potential difference across the membrane
an elastic collision between two bodies in which the collision is not head-on. Projectile particle m1 is an alpha particle and target m2 is an oxygen nucleus. Find the initial speed of the alpha particle
The current in a coil drops from 3.9 A to 1.8 A in 0.53 s. If the average emf induced in the coil is 12 mV, what is the self-inductance of the coil
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