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Jobisdone [24]
3 years ago
14

2 ways of defining velocity

Physics
2 answers:
ehidna [41]3 years ago
8 0

-- a speed and it's direction

-- the rate of change of displacement with time

Bingel [31]3 years ago
4 0
1.The speed of something given in a direction, 2. The rate at which money changes hands within an economy
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Your own car has a mass of 2000 kg. If your car produces a force of 5000 N, how fast will it accelerate?
Sidana [21]

Answer:

2.5m/s²

Explanation:

Given parameters:

Mass of car  = 2000kg

Force produced by the car  = 5000N

Unknown:

Acceleration of the car  = ?

Solution:

According to Newton's second law of motion, Force is a product of mass and acceleration.

  Force  = mass x acceleration

Now, insert the parameters and find the unknown;

  5000 = 2000 x acceleration

   Acceleration  = \frac{5000}{2000}   = 2.5m/s²

7 0
3 years ago
The driver of a car traveling at a speed of 27 m/s slams on the brakes and comes to a stop in 3 s. If we assume that the speed c
NISA [10]

Answer:

Average speed = 13.5 m/s

Explanation:

Since the car is running at a speed of 27 m/s  and it stops after 3 seconds by applying the brake. Therefore, the initial speed of the 27 m/s and final speed is 0.

Use below formula to find the average speed :

Average speed = (Initial speed + final speed ) / 2  

Average speed = (27 + 0 ) / 2

Average speed = 13.5 m/s

7 0
3 years ago
What happens to electrical energy that is used by objects in our homes? (1 point) a It is absorbed by batteries. b It is destroy
Reil [10]

Question:

<em>What happens to electrical energy that is used by objects in our homes? (1 point)</em>

<em>a It is absorbed by batteries. </em>

<em>b It is destroyed. </em>

<em>c It is stored in solar panels. </em>

<em>d It is transformed into other forms of energy.</em>

<em />

Answer:

D

3 0
2 years ago
Read 2 more answers
When compared to other types of waves, electromagnetic waves differ because they are
expeople1 [14]
They differ because they are transverse wave. That is their direction of travel is perpendicular to its vibrations.
7 0
2 years ago
I need help with my physics homework agh! Please help it's due tomorrow. <br>​
storchak [24]

Rubbing both pieces cause each piece to have a negative charge.

When two parts have the same they repel each other, so holding one piece up tot he end of the other piece would push it away.

Because one piece is held in the middle by a string, it would rotate the piece in a circle.

If they held the piece to the other end of the one held by a string it would start to rotate in the opposite direction.

4 0
3 years ago
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