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What is the magnitude and direction of the electric field at a point midway through -8µC and a 6µC charge 4cm apart.
One kilomole of an ideal gas undergoes a free expansion, tripling it's volume. What is the change of entropy of the universe
Object A of mass 1 kg and velocity 10 m/s east collides with object B of mass 2 kg and veocity 8 m/s south. What is the velocity of object B after the collision
A circus performer stretches a tightrope between two towers. He strikes one end of the rope and sends a wave along it toward the other tower. He notes that it takes the wave 0.695 s to reach the opposite tower, 20.0 m away. If a 1.00-m length of the ..
A very hot piece of iron with mass 1.5kg and initial temperature 755 degrees celcius is placed into a tank of water with total water mass 3.0kg, what is the final equilibrium temperature for the iron and water
write a problem containing at least three forces of different magnitudes and directions which results in a constant
Force on a Particle A force F = (4.0 N)i + (c N)j acts on a particle as the particle goes through displacement d = (4.0 m)i - (2.0 m)j. (Other forces also act on the particle.) What is the value of c if the work done on the particle by force F is eac..
A heat engine has an effiency of 35.0 % and recieves 150 K of heat per cycle. How much heat does it exhaust in each cycle
question1jims dog sparky runs 45.0 northeast to a tree then 70.0 west to a second tree and at last 25.0 south to a
The net force acting on an object in the horizontal direction is 25 newtons, Find the angle from the horizontal in which the force is acting
A bat can detect small objects, such as an insect, whose sizeis approximately equal to one wavelength of the sound the batmakes. If bats emit a chirp at a frequency of 53.0 kHz, and if the speed of sound in air is 340 m/s,what is the smallest insect ..
king arthurs knights use a catapult to launch a rock from their vantage point on top of the castle wall 15 above the
100 grams of oxygen and 100 grams of hydrogen gas occupy separate, equal sections of 200 liter tank. find the pressure after the reaction ends
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