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In the electron gun pictured, a potential difference of 12.0 kV is found to bring electrons from rest at the cathode to 6.5 107 m/s at the anode. If the potential difference between the cathode and anode is reduced from 12.0 kV to 5.8 kV, with what speed will the electrons reach the anode?
Suppose you're building a scale model of the hydrogen atom, How many miles away (1 mi = 1.61 Ã- 105 cm) should the electron be placed
Explain how much distance is between you and the deer when you come to a stop? What is the maximum speed you could have and still not hit the deer?
q1. a 59-g ice cube at 0degc is heated until 52 g has become water at 100degc and 7.0 g has become steam at 100degc.
Determine the tangetial and centripetal components of the netforce exerted on the car when its speed is 15 m/s. The car's massis 1100 kg
In an open RC circut, the total resistance is 15Kohms and the battery emf is 24 and constant is measured to be 35 microsecond calculate (a) the total capacitance of the circuit
A motorcycle daredevil is attempting to jump across as many busesas possible (see the drawing). The takeoff ramp makes an angleθ = 17.0° above the horizontal, and the landing ramp isidentical to the takeoff ramp. The buses are parked side by side,..
The drawing shows a collision between two puckson an air-hockey table. Puck A has a mass of 0.0190 kg and ismoving along the x axis with a velocity of +4.63 m/s. It makes acollision with puck B, which has a mass of 0.0380 kg and isinitially at res..
A model rocket is fired upward. The rocket's average initial acceleration is 40.5 m/s2 until the fuel burns out in 0.805 s. How high does the rocket go
the old baker bowl centerfield fence was about 408 feet from home plate. home run balls needed to be at least 35 feet
What is the rms current in a series RC circuit if R = 7.0 k, C = 0.80 µF, and the rms applied voltage is 100 V at 60 Hz and What is the phase angle between voltage and current
An air mass has a temperature of 68F and 970hPa with a mixing ratio of 5 g/kg. Without any condensation or mixing the air mass now has a temperature of 50F and a pressure of 750hPa. Find the initial and final values of a) r, b) T(dew), and c) vapor p..
You have a cylindrical cup of water that springs a leak 5 cm below the surface of the water. What is the velocity of the water coming out of the hole
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