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A solenoid 1.50 m long and 2.80 cm in diameter carries a current of 13.0 A. The magnetic field inside the solenoid is 19.0 mT. Find the length of the wire forming the solenoid.
The lens of a slide projector with a focal length of 100.0 mm projects a slide onto a screen that is 10.0 m away. How far from the lens must the slide be placed to form a sharp image on the screen?(in cm)
A car traveling at a speed of 55 has its brakes applied at A, reducing speed at a rate of (-t/4) mph/s where t is in seconds. Find cars speed and acceleration
A weight lifter does a series of arm raises while holding a 7.50 kg weight. Her forearm (including the hand) starts out horizontal and pivots to a vertical position about her below. What is the change in its gravitational potential energy with each..
a 10 N force is applied to a wheel with a radius of 3 cmcausing an acceleration of 12 rad/s2. what is the rotational of inertia of the wheel
A 2900 kg truck traveling northat 40 km/h turns east and acceleratesto 51 km/h. What is the change in the truck's kinetic energy
Estimate how much power is saved if the voltage is stepped up from 240 V to 1200 V and then down again, rather than simply transmitting at 240 V
A free electron is placed between two large, parallel, nonconducting plates that are horizontal and 2.90 cm apart. find the magnitude of the surface charge density on the plates
converting sunlight to electricity with solar cells has an efficiency of 15. its possible to achieve a higher
A uniformly charged thin ring has a radius 15.0 cm and has totalcharge +24.0nC. Describe the subsequent motion of the electron
The angular position of a pendulum is represented by the equation ? = 0.0310 cos ?t, Determine the period and length of the pendulum
A power station uses 100 kV to deliver power to a building. The building has a total resistance of 12.5kV. How much power is delivered to the building
Two Capacitors, C1= 2.0 mF and C2=9.0 mF , are in a series. Find the potential difference across the second capacitor
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