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Q. The current through the battery and resistors 1 and 2 (a) is 2.00 A. Energy is transferred from the current to thermal energy Eth in both resistors. Curves 1 and 2 in Figure (b) give that thermal energy Eth for resistors 1 and 2, respectively, as a function of time t. The vertical scale is set by Eth,s = 40.0 mJ, and the horizontal scale is set by ts = 5.00 s. What is the power of the battery?
Q. Pulling down on a rope, you lift a 4.49 kg bucket of water from a well with an acceleration of 1.50 m/s2. What is the tension in the rope?
A speedboat starts from rest and accelerates at +2.32 m/s2 for 6.78 s. At the end of this time, the boat continues for the additional 5.34 s with an acceleration of +0.677 m/s2. Following this, the boat accelerates at -0.686 m/s2 for 8.68 s.
A constant horizontal force Fa pushes a 3.70 kg FedEx package across a frictionless floor on which a xy coordinate system has been drawn. it gives the package's x and y velocity components versus time t. (The vx axis is marked in increments of 1.2..
Calculate the shear stress of the crude oil at the walls, and plotting the velocity distribution graph for the same.
Two identical positive charges exert a repulsive force of 7.4 x10-9 N when separated by a distance of 4.8 10-10 m. compute the charge of each.
A puddle holds 150 grams of water. If .50 grams of water evaporates from the surface, what is the approx temperature altering of the remaining water.
The pulley is located so that the string makes a 45 degree angle with the beam. The beam is uniform, 5 meters long, and has weight. The professor stands 2 meters from the pivot point and has weight.
A 600 turn solenoid, 25 cm long, has a diameter of 2.8 cm. A 10 turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 5.0 A in 0.48 s, what would be the induced emf magnitude in the..
The horizontal component Fx is shown by the histogram below as function of position along x-axis. There is also a kinetic frictional force of 0.50 N between mass and surface.
At one instant a bicyclist is 50 m due east of a park's flagpole, going due south with a speed of 9 m/s. Then, 24 s later, the cyclist is 45 m due north of the flagpole, going due east with a speed of 20 m/s. For the cyclist in this 24 s interval,..
W hat is the velocity of the gasoline in the tube
What is an average speed of the runner
A basketball player grabbing a rebound jumps 73.3 cm vertically. How much total time (ascent and descent) does the player spend (a) in the top 13.1 cm of this jump and (b) in the bottom 13.1 cm? Do your results explain why such players seem to han..
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