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A wire has a length of 6.80 10-2 m and is used to make a circular coil of one turn. There is a current of 4.30 A in the wire. In the presence of a 3.90 T magnetic field, what is the maximum torque that this coil can experience?
a Hollow sphere of mass M=1000kg and radius R=25cm is rolling down of an incline plans making an angle with horizontal. calculate the angular acceleration of hollow sphere
A spring has an unstretched length of 12cm. When an 80 g ball is hung from it, the length increases by 4.0 cm.Then the ball is pulled down another 4.0 cm and released. a) What is the spring constant? b) What is the period of the oscillation?
A boeing 747 jet with a wingspan of 60.0 m is flying horizontally at a speed of 300 m/s over Phoenix, What voltage is generated between the wingtips
In a science museum, a 130kg brass pendulum bob swings at the end of a 13.7m -long wire. how many oscillations will the pendulum have completed
You are given a container with 25.7 g of hydrogen atoms. What is the total charge on the electrons in the container? what is total charge on protons?
A heat pump with a coefficient of performance of 4.9 absorbs heat from the atmosphere at a rate of 30kW. At what rate is it doing work
A car is traveling at 48.0 km/h on a flat highway. What is the stopping distance when the surface is dry and the coefficient of friction is 0.600
Explain the forces an observer on the turntable would measure on the cannonballs after they leave the cannon. (Include a diagram showing clearly the direction of the forces) measure up to to the forces an observer who is not on the platform would ..
A battery with an emf of 12.0 V shows a terminal voltage of 11.3V, What is the battery's internal resistance
q1. there is a well-known legend about physicist isaac newton. it says that he was inspired into his improvement of the
An iron bar 50 cm long is raised to a copper bar 60 cm long and of the same diameter. What is the heat flow down the rod if its cross-sectional area is 2.50 cm2
Waves moving on a lake have a speed of 2.3 m/s and a distance of 1.8 m between adjacent crests. Find the period of the wave motion
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