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Two protons in an atomic nucleus are typically separated by adistance of 2.0*10-15 m. The electric repulsion force between theprotons is huge, but the attractive nuclear force is even strongerand keeps the nucleus from bursting apart. What is the magnitude ofthe electrical force between two protons whose centers areseparated by 1.90*10-15 m?
an organ pipe is 2.0cm long.Assume the pipe is cylindrical with one closed and one open end. if the frequency of the 3rd harmonic is 290Hz,then what is the speed of sound in the pipe
A crate whose mass m is 360 kg on the bed of a truck that is moving at 120km/h. What force (assumed constant) acts on the crate during this time
A 45-m length of wire is stretched horizontally between two vertical posts. Find the magnitude of the earth's magnetic field at the location of the wire
Assume the drag force from the water is linearly proportional to speed. Now what is the time required to bring the ship to a stop
Two parallel conducting (negligible resistance) frictionless rails are connected at one end by a resistor R. The rails are placed in a magnetic field, Calculate the power dissipated in the resistor
copper has 8.5 x 10^28 electrons per cubic meter. if a current of 1.55 A is flowing in the wire, what is the average drift speed of the electrons along the wire
Two microscope slides are stuck together and touching on one side where n=1.2 and wedged open on the other where n=1.5. These slides sit in air. How many fringes are there for the same slide configuration when it sits in water rather than air
Two resistors (connected in series with each other) and a 10 Vbattery are connected in a loop. The voltage drop across the firstresistor is 2 V. What is the voltage drop across the second resistor?
A well-engineered ski jump is less dangerous than it looks because skiers hit the ground with very small velocity components perpendicular to the ground. What is the slope of the ground in the landing zone
An electron has an initial velocity of 5.00 106 m/s in a uniform 9.00 105 N/C strength electric field. How long does it take the electron to come to rest
A large cruise ship of mass 6.80 107 kg has a speed of 12.8 m/s at some instant. what is the ship's kinetic energy at this time
A 3.0 m tall, 54 cm diameter concrete column supports a 190,000 kg load. By how much is the column compressed
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