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harkovskaia [24]
2 years ago
9

2 Points

Physics
1 answer:
Tom [10]2 years ago
6 0
The answers are A and E!
You might be interested in
A pulley system has an MA of 4. How much force would be necessary to pull a 200 newton box
Airida [17]

Mechanical advantage is defined as

MA = \frac{F_{output}}{F_{input}}

MA = 4

now we will have

F_{output} = 200 N

as we need to pull up a box of weight 200 N

now by above formula we can find how much force it requires to pull up the box

4 = \frac{F_{output}}{F_{input}}

4 = \frac{200}{F_{input}}

F_{input} = \frac{200}{4} = 50 N

so it requires 50 N force to pull the weight of 200 N

7 0
2 years ago
George walks to a friends house. He walks 750 meters north, then realizes he walked too far. He turns around and walks 250 meter
Nostrana [21]

Answer: 77 m/s in 2 significant figures

Explanation:

Total distance traveled (d) = 750 + 250 = 1000m

Time taken (t) = 13 s

Speed (s) = ?

Now,

s = d/t

s = 1000/13

s = 77 m/s in 2 significant figures

4 0
3 years ago
While riding a horse, the horse suddenly comes to an abrupt stop. You fly forward and
natali 33 [55]

Answer:

For every action there is an opposite reaction.

Explanation:

4 0
3 years ago
A dog runs 300m North and sees the dog catcher and runs 120 m south .Whats the dogs displacement.The same jogger runs 3 miles ar
ozzi

Answer:

<em>1. 180 m</em>

<em>2. 1.5 miles/hour</em>

<em>3. 0 m/s </em>

Explanation:

The complete question is

A dog runs 300 m North and sees the dog catcher and runs 120 m south Whats the dogs displacement.

A jogger runs north for 3.0 miles. If this took 2.0 hours, what is the jogger’s average velocity in miles per hour?

The same jogger runs 3.0 miles on the track, starting and finishing his run after completing exactly 12 laps around the track. What is his average velocity?

1. Displacement is how far the dog moves from the original starting point.

If the dog runs 300 m north, and then 120 m south, then the displacement from the starting point will be

displacement = 300 - 120 = <em>180 m</em>

2. Displacement of the jogger = 3 miles

Time taken by the jogger = 2 hours

velocity of the jogger = ?

Velocity is = displacement/time

velocity = 3/2 = <em>1.5 miles/hour</em>

3. velocity = displacement/time

if the jogger completes exactly 12 laps around the track, then the jogger will return to the starting point. This means that the jogger's displacement from the starting point is 0 miles

Jogger's velocity will therefore be = <em>0 m/s </em>

8 0
2 years ago
Which planet has the greatest mass?
Firlakuza [10]

Answer:

Jupiter

Explanation:

The largest planet in our solar system by far is Jupiter, which beats out all the other planets in both mass and volume. Jupiter's mass is more than 300 times that of Earth, and its diameter, at 140,000 km, is about 11 times Earth's diameter.

Note:

Please mark as Brainliest! <3

5 0
2 years ago
Read 2 more answers
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