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3 years ago

10

Please help! Which statements correctly describe the effect of distance in determining the gravitational force and the electrica

l force? Check all that apply.

1 answer:

Vera_Pavlovna [14]3 years ago

7 0

There are six statements on the list.

The first 2 are true, and the last 2 are true.

The 2 in the middle aren't true. They are false.

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An atom with two protons, three neutrons and two electrons would have a mass of about how many atomic mass units?

Katarina [22]

The answer is 5 amu.

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3 years ago

Find the potential difference between a point on the axis and a point on the outer cylinder. Note that it is not necessary to co

Kazeer [188]

Answer:

$V(b)-V(a) = - \int\limits^b_a {E} \, dL$

Explanation:

Solution:

- The Electric potential V is given as line integral(L) of Electric Field E. The expression.

$V = -\int\limits^r_0 {E} \, dL$

Where, r is the radial distance from the axis of charged body.

- The coaxial cable has inner radius (a) and outer radius (b). The potential difference between the inner radius (a) and outer radius (b) can be expressed as follows:

$V(b)-V(a) = - \int\limits^b_0 {E} \, dL + \int\limits^a_0 {E} \, dL \\\\V(b)-V(a) = - \int\limits^b_0 {E} \, dL - \int\limits^0_a {E} \, dL\\\\V(b)-V(a) = - \int\limits^b_a {E} \, dL$

7 0

3 years ago

Determine the magnitude of the momentum of a ... 107-kg halfback moving eastward at 8 m/s.The halfback's momentum in kgm/s is:

Veronika [31]

Given:

The mass of the halfback is m = 107 kg

The speed of the halfback is v = 8 m/s

To find the momentum.

Explanation:

The momentum of the halfback is

$\begin{gathered} p=\text{ mv} \\ =\text{ 107}\times8 \\ =\text{ 856 kg m/s} \end{gathered}$

Thus, the momentum of the halfback is 856 kg m/s

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2 years ago

Why do you think drug abuse is so pervasive in the United States?

Naily [24]

Because people think it’s helps them with their problems and acts like it’s a gateway drug

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3 years ago

Which of these physical settings makes sense for an object moving along the x-axis? Its position at any time is given by x(t) =

kow [346]

Answer:

option b is correct.

Explanation:

Since the position as a function of time is given by

$x(t)=3cos(\pi t)+2$ which is a periodic function thus the motion of the particle repeats after a time of 2 seconds thus among the given options only option b is case of repetitive motion thus option b is most appropriate since the spinning wheel repeates it's motion.

4 0

4 years ago