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Damm [24]
2 years ago
15

Introduction to forces

Physics
1 answer:
ELEN [110]2 years ago
8 0

Answer: Force

A push, pull or twist that can change an object's position, direction, speed or shape.

Explanation:

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Write any two difference between air pump and water pump.​
Alina [70]

Answer:

See the explanation below.

Explanation:

a)

Pumping water requires equipment with closed housing, so that water is not irrigated from the pumping point.

Fans in some applications do not require closed housings, as air irritation does not create anomalies or areas of nonconformity at the air pumping point.

b)

The pressures in water pumping equipment are usually much higher than those generated with air equipment, since the density of water is much higher than that of air, almost 1000 times higher.

3 0
3 years ago
Suppose you walk 21.5 m straight east and then 12.5 m straight north. How far are you from your starting point (in m)
stira [4]

Answer:

24.9 m

Explanation:

A triangle is a polygon with three sides and three angles. There are different types of triangles such as the equilateral triangle, isosceles triangle, scalene triangle, right angled triangle.

You walk 21.5 m straight east and then 12.5 m straight north. This forms a right angled triangle with a horizontal distance of 21.5 m, a vertical distance of 12.5 m and the hypotenuse is the distance between the ending and starting point. Let x represent the distance between the ending and starting point. Therefore using Pythagoras theorem:

x² = 21.5² + 12.5²

x² = 462.25 + 156.25

x² = 618.5

Taking square root of both sides:

√x² = √618.5

x = √618.5

x = 24.9 m = distance between the ending and starting point.

4 0
3 years ago
The bell rings and a physics student heads to class. They stop to talk to a few friends. They slow
grin007 [14]

Answer:

420m

Explanation:

Given parameters:

Time  = 5minutes

Average speed  = 1.4m/s

Unknown:

Distance covered  = ?

Solution:

Speed is the rate of change of distance with time.

 Mathematically;

              Speed  = \frac{distance}{time}  

    Distance  = speed x time

 

Insert the parameters and solve;

   Convert the time to seconds;

              1 minute = 60s

               5 minute = 5  x 60 = 300s

So,

   Insert the parameters and find the distance;

     Distance  = 300 x 1.4  = 420m

3 0
3 years ago
In a bicycle dynamo,does 1. The permanent magnet surrounds a conducting coil 2. The conducting coil rotates when the rear wheel
atroni [7]

Explanation:

3: the electricity is generated in the permanent magnet

7 0
3 years ago
Read 2 more answers
I need help with all of these questions
Sedbober [7]

Answer:

This was my best estimation of the answers

7 0
3 years ago
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