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s344n2d4d5 [400]
3 years ago
6

A basketball rolls to a stop along a gym floor without anyone touching it. What answer choice BEST explains why this occurred?

Physics
2 answers:
Minchanka [31]3 years ago
7 0
Frictional forces are exerting force against the basketball, causing it to stop.
salantis [7]3 years ago
5 0

its B,The opposing force of friction stopped the ball.

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Two blocks, stacked one on top of the other, slide on a frictionless horizontal surface. The surface between the two blocks is r
devlian [24]

Answer:

F_{net} = 31.88 N

Explanation:

When top block is just or about to slide on the lower block then we can say that the frictional force on it will be maximum static friction

So we will have

F_{net} = ma

F_s = ma

\mu_s mg = ma

a = \mu_s g

a = (0.50)(9.81)

a = 4.905 m/s^2

now for the Net force on two blocks to move together

F_{net} = (m_1 + m_2) a

F_{net} = (2.3 + 4.2)(4.905)

F_{net} = 31.88 N

4 0
3 years ago
at the center of the neutral metal block, what is the direction of the electric field contributed by the charge in and on the me
elena-14-01-66 [18.8K]

The direction of electric field by the charge in and on the metal block will be along the direction line 5 as given in question.

<h3>How to determine electric field direction in a metal block?</h3>

The charge always remain on outer surface of metal and inside the metal block, the net electric field is zero. But due to dipole there is an electric field at the center of metal block i.e. at point R along direction line 1.

Now, to make make the net electric field zero at center, the electric field by the charge in and on the metal block must be equal in magnitude to that of electric field due to dipole at point R and in opposite direction to that of the net electric field at at R due to dipole.

The electric field by the charge in and on the metal block will be making 180° angle to the  electric field due to dipole at point R.

Hence the direction of electric field by the charge in and on the metal block will be along the direction line 5 as given in question.

To know more about electric field, click on brainly.com/question/11509296

#SPJ4

4 0
11 months ago
A 615 N student standing on a scale in an elevator notices that the scale reads 645 N. From this information, the student knows
BARSIC [14]

Answer:

The elevator must be moving upward.

Explanation:

During the motion of an elevator, the weight of the person deviates from his or her actual weight. This temporary weight during the motion is referred to as "Apparent Weight". So, when the elevator is moving downward, the apparent weight of the person becomes less than his or her actual weight.

On the other hand, for the upward motion of the elevator, the apparent weight of the person becomes more than the actual weight of that person.

Since the apparent weight (645 N) of the student, in this case, is greater than the actual weight (615 N) of the student.

<u>Therefore, the elevator must be moving upward.</u>

8 0
3 years ago
What type of electromagnetic radiation does chandra collect?
rusak2 [61]
<span>The answer is X-rays.<span>  </span>Chandra observes the universe in X-ray vision. The observatory has helped astronomers discover black holes, dark matter, quasars, and supernovas and see beyond regions in the universe past that have high temperatures and very high luminosity.  It has allowed us to see the universe beyond our visual capacity (visible light of the electromagnetic spectrum). </span>




5 0
3 years ago
How do I love someone
AleksandrR [38]

Answer:

if you need to ask this question, then u dont love them

Explanation:

give them ur whole heart and always wanna cuddle

plza mark me brainliest i need only one moreeeeee

7 0
2 years ago
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