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3 years ago

The Strength of an electromagnet can be increased by reducing the number of turns on the wire coil true or false

Physics

1 answer:

ad-work [718]3 years ago

5 0

Answer:the answer is true

Explanation:because as u add more coil/wrap more coil around the nail the field get stronger and stronger to attract more nails

Hope this helped

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A block with a mass of 9.00 kg is pulled at a constant speed across a horizontal tabletop with a spring scale. The scale reads 6

snow_tiger [21]

Answer:0.69

Explanation:

Coefficient of kinetic friction=f/R=61.8/90=0.69

7 0

3 years ago

two forces 3N and 4N act on a body in a direction due north and due East respectively calculate their equivalent

Lostsunrise [7]

Two forces 3N and 4N act on a body in a direction due north From East, the equilibrant's angle is given by $\theta=\tan ^{-1} \frac{3}{4}=36.8^{\circ}$ .

<h3>What are equilibrium and resultant force?</h3>

The equilibrium force is the balanced force when the net force acting is zero and is the exact opposite of the consequent force. The resultant force is one single force replaced by numerous forces.

<h3>Briefing:</h3>

3N and 4N are the two forces pulling on a body.

The forces work along the North and the East, which are perpendicular to one another.

The resultant of the forces, which is provided by the equilibrant force,

R = √(3)²+(4)²

R = 5N

From East, the equilibrant's angle is given by

$\theta=\tan ^{-1} \frac{3}{4}=36.8^{\circ}$

To know more about equilibrium force visit:

brainly.com/question/12582625

#SPJ9

6 0

8 months ago

If a person pulls back a rubber band on a slingshot without letting to go of it, what type of energy will the rubber band have?

Travka [436]

Answer:

Potential energy. Releasing it, the potential energy would convert into motion, kinetic energy.

Potential energy is when an object has some sort of potential eg. for motion such as in this example.

7 0

2 years ago

Ten different uses for solar energy?

baherus [9]

Answer:

for your computer, refridgerator, stove, car, lights, oven, microwave, electronic chargers, wi-fi router, and fans

Explanation:

also solar energy will save the earth from being inhabitable

hope this helped!!

8 0

2 years ago

A cross-country skier travels 40 meters north in 2 minutes. What is the skiers velocity?

allsm [11]

Answer:

v = 0.33 [m/s]

Explanation:

We must remember that speed is defined as the relationship between the displacement in a given time. In this way, we can propose the following equation.

$v=d/t$

where:

v = velocity [m/s]

d = displacement = 40 [m]

t = 2 [min] = 120 [s]

Now replacing we have:

$v=40/120\\v=0.33[m/s]$

6 0

2 years ago