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1: Two charges, 10C and 20C, are 30cm part.a) What is the electric force felt by the first charge?b) What is the electric force felt by the second charge?2: How does motor work?3: An electric toaster connected to a 110V source draws 10A ofcurrent. How much energy does it generate in 20 seconds?4: What are two types of polarization?5: Can you turn a generator into a motor? How?
According to the Bohr model, a hydrogen atom in its lowest energy state has a nucleus consisting of a single proton, What is the magnitude of the "current" flowing around the nucleus
Two 1.4 g spheres are charged equally and placed 2.4 cm apart. When released, obtain the magnitude of the charge on each sphere
Discuss what it was about about blackbody radiation that classical physics was unable to explain. How did Planck's theory succeed?
After a 0.838 nm x-ray photon scatters from a free electron, the electron recoils with a speed equal to 1.49E+6 m/s. Through what angle was the photon scattered
A state trooper chases a speeder along astraight stretch of road; both vehicles move at 155 km/h. What is the Doppler shift in the frequency heard by the speeder
A mass of 3kg, is sitting on a 34° incline and is connected by a massless string over a pulley in the shape of a hollow cylinder, estimate the acceleration of the system
A 54kg sprinter, starting from rest, runs 60m in 7.0s at constant acceleration. What is the magnitude of the horizontal force acting on the sprinter? What is the sprinter's average power output during the final 2.5s
a 753 kg elevator starts from rest. it moves upward for 3.04 seconds with a constant acceleration until it reaches its cruising speed of 2.07 m/s
A telescope is designed using an objective lens f focal length f(obj)=2m and an eyepiece of focal length f(eye)=8cm. Find the location and size of the image of Jupiter formed by the objective lens
a jungle veterinarian with a blowgun loaded with a tranquilizer dart and a sly 1.50 monkey are each 25.0 above the
A cylinder contains 3.1 L of oxygen at 310 K and 2.5 atm . The gas is heated, causing a piston in the cylinder to move outward. What is the gas pressure
Jupiter makes one complete orbit of the Sun every 11.9 years. Calculate the radius of the orbit of Jupiter
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