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prisoha [69]
3 years ago
5

Atoms

Physics
1 answer:
Trava [24]3 years ago
8 0

Answer:

<em>The Answer is C, Protons have an electrical charge, but neutrons have no charge.</em>

Explanation:

Protons are positively charged (+), while neutrons are neutral, meaning they have no charge.

The first two choices are incorrect because protons and neutrons are almost the exact same size, and the last choice is incorrect because both protons and neutrons make up the nucleus, electrons orbit the nucleus.

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The car has a mass of 1.6 Mg and center of mass at G. If the coefficient of static friction between the shoulder of the road and
Rufina [12.5K]

Answer:

\theta = 22.29

Explanation:

Taking summation of force at perpendicular  to the plane

\sum F_p = 0

2N_A +2N_B -mgcos\theta = 0

N_A +N_B - mgcos\theta = 0

N_A +N_B = mgcos\theta

Taking summation along the plane, therefore we have

\sum Fa = 0

f_A +f_B -mgsin\theta = 0  

\mu N_A+\mu N_B - mgsin\theta = 0

\mu(N_A +N_B) = mgcos\theta

from equation 1 and 2 we have

\mu =\frac{sin\theta}{cos\theta}

\mu = 0.41

\mu = tan\theta

\theta = tan^{-}\mu

\theta = 22.29

6 0
4 years ago
If a car races around a 2.3 mile oval track 220 times, what is the displacement of the car in meters when it crosses the finish
Wewaii [24]

Answer: 0 miles.

Explanation:

First let's define what the displacement is:

The displacement is defined as the difference between the final position and the initial position.

So, if for example, you start at your house, then go to a store, and then go back to your house, your total displacement will be zero, because the initial position and the final position are the same.

Then when the car reaches the final line, it will be in the same place that it started (because this is an oval track, so the finish line connects with the starting point)

Then the total displacement is 0miles.

5 0
3 years ago
If a park is 5 miles away what is the average speed you have to maintain to arrive in 15 minutes
Nikolay [14]

Answer:

3 miles per hour

Explanation:

15 divided by 5 = 3

4 0
4 years ago
A car is traveling on the highway at 28 m/s The driver sees a tree in the middle of the road and slams on the brakes. The car co
wel

Answer:what are the answer options?

Explanation

3 0
3 years ago
Which statement best explains why the overall charge on an atom is zero?
aalyn [17]
A: The positive charge if the protons in the nucleus equals the negative charge in the electron cloud.


Protons are positive, electrons are negative, and neutrons have no charge/are neutral
3 0
3 years ago
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