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A certain wire has a diameter of 2 mm and a length of 280 m. If it has a resistance of 10 ohms and 20 degrees celsius, what is the resistiviy?
infer electric field due to uniformly distributed charges on long wires spears and large plate
Two blocks are connected by a string over a frictionless, massless pulley such that one is resting on an inclined plane and the other is hanging over the top edge of the plane, the hanging block has a mass of 16 kg, and the one on the plane has a mass of 8 kg. the coefficient of kinetic friction between the block and the inclined plane is 0.23. the block are released from rest.
What are limitations of nernst distribution law
An airplane starts at a stand-still and speeds up with an acceleration of 2.9 m/s2. If the runway is 158 m long, how long will it take for the airplane to reach the end of the runway.
The driver of a car travelling at a constant speed of 72 kmph, seeing a procession ahead of him moving in the same direction, decelerates at a constant rate of 1m/s^2 until his speed is reduced to 3 kmph. He moves at this speed for 2 minutes until the procession takes a left turn. He then accelerates at a constant rate of 0.5 m/s^2 to his normal speed. Determine the total distance travelled during this time and the time lost.
A graph of acceleration of the table versus time, termed a ballistocardiogram, is generated. Based on these measurements, the acceleration of the blood ejected by the heart can be determined. Patients with low blood accelerations generally have weakened heart muscles.
A sketch of a single cycle of a ballistocardiogram is given in the figure. (Figure 1) . The units of the graph are arbitrary and linear for both time,t, and acceleration, a.At what time (in the arbitrary time units of the graph) is the speed of the table (and hence the speed of the blood in the opposite direction) a maximum?
At what time (in the arbitrary time units of the graph) is the speed of the table (and hence the speed of the blood in the opposite direction) a maximum?
While in a helicopter traveling straight up at 25m/s you accidentally drop your sunglasses when you are 30m above the ground. What is the speed of your sunglasses when they hit the ground?
The pressure increases by 1.0 x 104 N/m2 for every meter of depth beneath the surface of the ocean. At what depth does the volume of a Pyrex (bulk modulus 2.6 x 1010 N/m2) glass cube, 5.6 x 10-2 m on an edge at the ocean's surface, decrease by 3.0 x 10-10 m3?