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Tanya [424]
3 years ago
5

How is my Engineering Project?

Physics
1 answer:
Scrat [10]3 years ago
8 0
What do you mean you need to be more specific
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HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Nata [24]
When the child is moving fastest
6 0
3 years ago
Read 2 more answers
A body is electrically neutral. Does it mean that it has no charge?<br>​
vova2212 [387]

Answer:

If a body is electrically neutral it means it has no net charge.

Explanation:

Because it has the same number if protons as it does electron , which are opposite charges that offset eachother.

7 0
3 years ago
Need help! Photo says all! Will mark brainliest :)
AVprozaik [17]

Answer:

C-D

Explanation:

As you can see from the graph, the distance from A to B was from 0 m to 6 m in a duration of 3 seconds.

Divide 6 meters by 3 seconds to find the speed:

6 ÷ 3 = 2 m/s

B-C is not moving due to a straight line as said in the graph, so speed is

0 m/s.

There is also C-D since the car traveled from a distance of 9 meters

(6 -(-3) = 9) in 3 seconds too. (NOTE: The graph line going down does not mean it is slowing down, but rather going to a certain distance like going backwards)

Divide 9 meters by 3 seconds to get the speed:

9 ÷ 3 = 3 m/s

Between A-B, B-C, and C-D, C-D has the fastest speed recorded with 3 m/s.

A-D does not count here as the line has no connection between point A and point D.

Cheers!

6 0
2 years ago
In a completely frictionless Newton's Cradle toy, the change in speed of the balls coming in and those going out is zero. This i
BlackZzzverrR [31]

Answer:

False. The net force is Zero

Explanation:

To answer this question we propose the solution of the problem.

 We have a toy where balls come in and out after crashes between them, this toy forms our system, so all the balls are parts of the system, when the balls collide with each other according to Newton's third law force and action and reaction, so it has the same magnitude, but opposite direction, this is each is applied to some of the objects.

In conclusion of the previous one for the system the net force is Zero, all are internal. Therefore, the only thing that happens is a redistribution of speeds according to the conservation of the moment.

Let's review the answer.

False. The net force is Zero

3 0
3 years ago
An airplane has a velocity of 907 km/hr westward relative to the air. If the air is moving eastward at 82 km/hr, what is the vel
Lisa [10]

Answer:

D.  825 km/hr westward

Explanation:

In order to solve the problem, we should define a positive and a negative direction for the velocities.

Let's take positive (+) as westward and negative (-) as eastward.

1) Relative to the ground, the air is moving eastward at 82 km/h, so the air velocity is v'=-82 km/h

2) Relative to the air, the airplane is moving westward at 907 km/h, so its velocity is v=+907 km/h

In the reference system of the ground, the velocity of the airplane will be given by the velocity of the airplane in the reference system of the air (v) plus the velocity of the reference system of the air relative to the ground (v'):

V=v+v'

Therefore, substituting:

V=907 km/h+(-82 km/h)=+825 km/h

And the sign (+) means its direction is westward.

7 0
3 years ago
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