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Nastasia [14]
3 years ago
6

How does electric force affect an atom?

Physics
1 answer:
iren2701 [21]3 years ago
4 0
C is the most reasonable answer
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A car of mass 1470 kg is on an icy driveway
Schach [20]

Answer:

  a = 7.5 m / s²

Explanation:

For this exercise let's use Newton's second law, let's create a coordinate system with the x axis parallel to the plane and the y axis perpendicular to the plane

Y axis

       N - W cos θ = 0

       N = mg cos θ

X axis

       W sin θ = m a

 

       mg sin θ = m a

        a = g sin θ

let's calculate

        a = 9.8 cos 40

        a = 7.5 m / s²

8 0
2 years ago
What happens to metal railroad tracks during the heat of a summer day
Oksanka [162]
The railroad tracks will expand because the heat waves make them bigger

4 0
3 years ago
Read 2 more answers
What does it mean to say that wolves are social creatures
Marizza181 [45]
They interact with one another with their facial expressions and body movements all the time
5 0
3 years ago
At the top of a pole vault, an athlete actually can do work pushing on the pole before releasing it. Suppose the pushing force t
Salsk061 [2.6K]

Answer:

The work done on the athlete is approximately 2.09 J

Explanation:

From the definition of the work done by a variable force:

\displaystyle{\int_{x_i}^{x_j}F(x)dx}

and substituting with the function of our problem:

\displaystyle{\int_{0}^{0.19}(140x-190x^2)dx\approx2.09\mathrm{J}}

5 0
3 years ago
A 20 metric ton train moves toward the south at 50 m/s. At what speed must it travel to have four times its original momentum
OverLord2011 [107]

Answer:

200 m/s

Explanation:

as momentum is a product of mass and speed, and mass is not changing, four times the speed will result in four times the momentum.

p = mv

4p = m(4v)

5 0
2 years ago
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