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mote1985 [20]
2 years ago
13

URGENTLY NEED HELP!!!!!!

Physics
1 answer:
Sav [38]2 years ago
6 0

Answer:

False.

Explanation:

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The imaginary line from the tip of the football to the football to the sideline is called
pentagon [3]
The imaginary line from the tip of the football to the football to the sideline is called Line of Scrimmage. I believe.
8 0
3 years ago
A 45.0-kg person steps on a scale in an elevator. The scale reads 460 n. What is the magnitude of the acceleration of the elevat
WINSTONCH [101]

Answer:

The magnitude of the acceleration of the elevator is 0.422 m/s²

Explanation:

Lets explain how to solve the problem

Due to Newton's Law ∑ Forces in direction of motion is equal to mass

multiplied by the acceleration

We have here two forces 460 N in direction of motion and the weight

of the person in opposite direction of motion

The weight of the person is his mass multiplied by the acceleration of

gravity

→ W = mg , where m is the mass and g is the acceleration of gravity

→ m = 45 kg and g = 9.8 m/s²

Substitute these values in the rule above

→ W = 45 × 9.8 = 441 N

The scale reads 460 N

→ F = 460 N , W = 441 N , m = 45 kg

→ F - W = ma

→ 460 - 441 = 45 a

→ 19 = 45 a

Divide both sides by 45

→ a = 0.422 m/s²

<em>The magnitude of the acceleration of the elevator is 0.422 m/s²</em>

4 0
3 years ago
Cell phones require powerful batteries in order to work effectively. Which
iragen [17]

Answer:

D. Improving their design to make it easier to recycle them when they are no longer useful.

Explanation:

Just took the test on (APEX)!!

7 0
2 years ago
Matthew drives 10 meters to go to the park at her the park he goes to the movie theatre which is 15 meters away from the park. H
Step2247 [10]

Answer: 0 m

Explanation:

Let's begin by stating clear that movement is the change of position of a body at a certain time. So, during this movement, the body will have a trajectory and a displacement, being both different:

The trajectory is the <u>path followed by the body</u> (is a scalar quantity).  

The displacement is <u>the distance in a straight line between the initial and final position</u> (is a vector quantity).

According to this, in the description Matthew's home is placed at 0 on a number line, then he moves 10 m to the park (this is the distance between the park and Mattew's home), then 15 m to the movie theatre until he finally comes back to his home (position 0). So, in this case we are talking about the <u>path followed by Matthew</u>, hence <u>his trajectory</u>.

However, if we talk about Matthew's displacement, we have to draw a straight line between Matthew's initial position (point 0) to his final position (also point 0).

Now, being this an unidimensional problem, the displacement vector for Matthew is 0 meters.

4 0
3 years ago
Question 3 of 5
kap26 [50]

Answer:

Heat

Explanation:

The term heat refers to the conduction process which occurs when energy is passed between objects

8 0
3 years ago
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