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vladimir1956 [14]

3 years ago

11

Explain electrostatic force

1 answer:

rosijanka [135]3 years ago

4 0

Answer:

Electrostatics is a branch of physics that studies electric charges at rest. Since classical physics, it has been known that some materials, such as amber, attract lightweight particles after rubbing. The Greek word for amber, or electron, was thus the source of the word 'electricity'.

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If a race car wants to change its velocity then a net force is<br> required to cause the necessary

pashok25 [27]

Answer:acceleration

Explanation:

8 0

4 years ago

Why can a strong man not hold a weight on a chain completely straight?

marysya [2.9K]

The strong man cant hold a weight on a chain completely straight due to the gravity and the mass of the chain/chair,

<span>Acceleration due to gravity at surface radius = approx 23 (m/s)/s</span>

6 0

3 years ago

A toy train has an acceleration of 1.2 m/s2. A net force of 3.0 N is acting on the train. What is the mass of the train?

STALIN [3.7K]

Answer:

2.5 kg

Explanation:

We can solve the problem by using Newton's second law:

$F=ma$

where

F is the net force acting on the train

m is the mass of the train

a is the acceleration

For the toy train in the problem,

F = 3.0 N

a = 1.2 m/s^2

So we can solve the formula for m, to find the mass of the train:

$m=\frac{F}{a}=\frac{3.0 N}{1.2 m/s^2}=2.5 kg$

7 0

3 years ago

Anna35 [415]

Answer:

430.

Explanation:

If we know that 0.5 is half of a whole number, then we can simply understand that we need to 215 x 2 to get our answer.

3 0

3 years ago

Two nuclear reactors provide 3200 MW of power.If the transmission system loses 5.1% of the energy produced,how much power from t

Annette [7]

The power that the customers receive is 163.2 MW

Explanation:

The efficiency of a system is given by

$\eta = \frac{P_{out}}{P_{in}}$

where

$P_{out}$ is the power in output

$P_{in}$ is the power in input

For the nuclear reactors in this problem, we have:

$P_{in} = 3200 MW$ (power generated by the reactors)

$\eta=0.051$ (efficiency is 5.1%)

Therefore, the power that reaches the customers is:

$P_{out} = \eta P_{in} = (0.051)(3200)=163.2 MW$

Learn more about power:

brainly.com/question/7956557

#LearnwithBrainly

6 0

3 years ago