Physics, 28.02.2020 19:21 lobatospitones
During a lightning flash, there exists a potential difference of Vcloud - Vground = 2.5 x 109 V between a cloud and the ground. As a result, a charge of -21 C is transferred from the ground to the cloud.(a) How much work Wground–cloud is done on the charge by the electric force?(b) If the work done by the electric force were used to accelerate a 1100-kg automobile from rest, what would be its final speed?(c) If the work done by the electric force were converted into heat, how many kilograms of water at 0 °C could be heated to 100 °C?
Answers: 3
Physics, 22.06.2019 15:50
Select all the correct answers. which changes will increase the rate of reaction during combustion? decreasing the area of contact between the reactants adding more oxygen to the reaction removing heat from the reaction changing the reactants from solid form to powdered form lowering the exposure of the reactants to air
Answers: 3
Physics, 22.06.2019 16:00
An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.
Answers: 1
Physics, 22.06.2019 16:20
How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit
Answers: 2
Physics, 22.06.2019 17:00
If you wanted to move an electron from the positive to the negative terminal of the battery, how much work w would you need to do on the electron? enter your answer numerically in joules.
Answers: 1
During a lightning flash, there exists a potential difference of Vcloud - Vground = 2.5 x 109 V betw...
History, 23.11.2020 14:00
Mathematics, 23.11.2020 14:00
Mathematics, 23.11.2020 14:00
Social Studies, 23.11.2020 14:00
Mathematics, 23.11.2020 14:00
Biology, 23.11.2020 14:00
English, 23.11.2020 14:00
Computers and Technology, 23.11.2020 14:00
Mathematics, 23.11.2020 14:00
Mathematics, 23.11.2020 14:00
Social Studies, 23.11.2020 14:00
Mathematics, 23.11.2020 14:00