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ElenaW [278]
3 years ago
10

An electron is pushed into an electric field where it acquires a 1-V electrical potential. If two electrons are pushed the same

distance into the same electric field, the electrical potential of the two electrons is:
Physics
1 answer:
DerKrebs [107]3 years ago
8 0

Answer: the correct answer 1V

Explanation: the principle is that net charge hasn't been created or destroyed.

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A screen door spring is stretched
bija089 [108]

Answer:

216.39 N/m

Explanation:

F = 64.7 N

x = 0.299 m

Plug those values into Hooke's Law:

F = kx

64.7 N = k(0.299 m)

---> k = 216.39 N/m

8 0
3 years ago
What are many scientific laws represented with?
salantis [7]

hypothesises i think

3 0
4 years ago
This same car gets pulled over for speeding, and goes from 68 m/s to 0 m/s in 14
Harrizon [31]

Answer:

the acceleration of the car is -4.9m/s2.

the direction is opposite to the actual direction, since the acceleration is negative.

3 0
3 years ago
What is the main cause of convection: a.pressure b. density c. weight d. altitude
densk [106]

Answer:

density

Explanation:

Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. It is this movement that creates circulation patterns known as convection currents in the atmosphere, in water, and in the mantle of Earth.

LET ME KNOW IF THIS HELPED :)

7 0
3 years ago
A helicopter descends from a height of 600 m with uniform negative acceleration, reaching the ground at rest in 5.00 minutes. de
uranmaximum [27]
Given:
h = 600 m, the height of descent
t = 5 min = 5*60 = 300 s, the time of descent.

Let a =  the acceleration of descent., m/s².
Let u =  initial velocity of descent, m/s.
Let t = time of descent, s.
The final velocity is v = 0 m/s because the helicopter comes to rest on the ground.
Note that u,  v, and a are measured as positive upward.

Then
 u + at = v
(u m/s) + (a m/s²)*(t s) = 0
u = - at
u = - 300a                  (1)

Also,
u*t + (1/2)at² = -h
(um/s)*(t s) + (1/2)(a m/s²)*(t s)² = 600
ut + (1/2)at² = 600       (2)
From (1), obtain
-300a +(1/2)(a)(90000) = -600
44700a = -600
a = - 1.3423 x 10⁻² m/s²

From (1), obtain
u = - 300*(-1.3423 x 10⁻²) = 4.03 m/s

Answer:
The acceleration is 0.0134 m/s² downward.
The initial velocity is 4.0 m/s upward.

3 0
3 years ago
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