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Mandarinka [93]
3 years ago
8

Name three ways electricity can be produced.​

Physics
1 answer:
Naya [18.7K]3 years ago
7 0

Answer:

water

the sun

fossil fuels

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A ball is thrown downward with an initial speed of 6m/s. the ball's velocity after 4 seconds is m/s. (g=-9.8m/s^2)
7nadin3 [17]

Answer:

8

Explanation:

6 0
3 years ago
Consider a particle with unit charge q, and mass m, in a constant magnetic field B directed along the positive z–axis. The parti
max2010maxim [7]

Answer:

it must be helical motion in which the charge particle will move uniformly along z axis and simultaneously it will move in circular path in xy plane.

Explanation:

Magnetic field is along z axis while velocity is in x-z plane

so we will have

F = q(\vec v \times \vec B)

so here we can say

F = q(u\hat i + w\hat k) \times (B \hat k)

so we will have

F = quB(-\hat j)

so here the net force on the charge is perpendicular to its x directional velocity along - Y direction

So due to this component of motion it will move along a circle while other component of the motion will remain uniform always

So here it is combination of two parts

1) Uniform circular motion

2) Uniform motion

So we can say that it must be helical motion in which the charge particle will move uniformly along z axis and simultaneously it will move in circular path in xy plane.

4 0
3 years ago
A car traveling at 60 km/h will skid 30 m when its brakes are locked. if the same care is traveling at 180 km/h, what will be th
Flauer [41]
The first car travels at 60km/h and skid at 30m away from the starting point while another car is also traveling at 180km/h. Now, we need to solve for the skidding distance.
We assigned variables such as:
V1=60km/h
V2=180km/h
Skid1=30m
Skid2=?
We solve this by ratio and proportion method such as shown below:
V1/V2=skid1/skid2
60/180=30/skid2
skid2=(30*180)/60
skid2=90meters

Th answer is 90 meters.
3 0
3 years ago
Read 2 more answers
How does the speed of a sound wave change as the medium through which it traveks changes?
uranmaximum [27]
Increase as density increase and vise versa.
<span>The wavelength increases when a sound wave travels from a less dense to a more dense medium, the speed increases, and the frequency stays the same.</span>
8 0
3 years ago
Calculate the capacitance of a system that stores 9.4 x 10-10 C of charge at
natka813 [3]

Answer:

A. 1.88\times 10^{-11}\,F.

Explanation:

By definition of Electric Capacitance, the capacitance of the system (C), in farads, is described by the following formula:

C = \frac{q}{V} (1)

Where:

q - Electric charge, in coulombs.

V - Voltage, in volts.

If we know that q = 9.4\times 10^{-10}\,C and V = 50\,V, then the capacitance of the system is:

C = \frac{9.4\times 10^{-10}\,C}{50\,V}

C = 1.88\times 10^{-11}\,F

The correct answer is A.

8 0
3 years ago
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