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An idealized voltmeter is connected across the terminals of a battery while the current is varied. Figure 25.34 shows a graph of the voltmeter reading Vas a function of the current I through the battery. Find
(a) The emf E and
(b) The internal resistance of the battery.
What is the final temperature of the block and water
Starting from rest on your bicycle, you go in a straight line with acceleration 2.0 m/s2 for 6.0s. Then you pedal with a constant velocity for another 7.4s. Find final velocity and total distance cycled
An sub with a mass of 1800 kg is traveling eastbound at 17 m/swhile a compact car with mass of 900 kg is traveling westbound witha speed of 15 m/s the cars collide head-on becoming entangled.
Three forces act on a moving object. One force has a magnitude of 68.2 N and is directed due north. find the direction of the third force, such that the object continues to move with a constant velocity
A 0.45 kilogram object connected to a light spring with a force constant of 19.6 N/m oscillates on a frictionless horizontal surface. Find the speed of the object when the spring is compressed 1.5 centimeter
A swimmer wants to swim straight across a river with current flowing at a speed of v1 = 0.27 km/h. If the swimmer swims in still water with speed v2 = 0.81 km/h, at what angle should the swimmer point upstream from the shore and at what speed v w..
Two carts with masses of 4.5 kg and 3.9 kg move toward each other on a frictionless track with speeds of 5.6 m/s and 4.3 m/s, respectively. The carts stick together after colliding head-on.
A satellite in geosynchronous orbit orbits the earth in 24 hours. find the radial velocity and the angular velocity
A woman walks for 4 min directly north with a average velocity of 6 km/h; then she walks eastward at 4 km/h for 10 min. What is the magnitude of her average velocity
Two capacitors have the same plate separation, but one has square plates and the other has circular plates, at is the dielectric constant kcircular of the material between the circular plate
A flat sheet of ice has a thickness of 2.0cm. It is on top of a flat sheet of crystalline quartz thathas a thickness of 1.1cm. How far (in cm) would it have to travel invacuum
The middle C string on a piano is under a tension of 986 Newton. Evaluate what the linear density of the string
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