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3 years ago

First law of equilibrium

Physics

1 answer:

valentina_108 [34]3 years ago

5 0

Answer:

For an object to be an equilibrium it must be experiencing no acceleration.

Explanation:

Hope it helps.

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A body of mass 50kg is placed on a wall of height 1.5m what is the potential energy

DiKsa [7]

Answer:

PE=mgh

=50×1.5×9.8

=735

Explanation:

need thanks and make me brainiest if it helps you

8 0

3 years ago

Air friction damps a tuning fork so the amplitude decreases by 1/10 per second. Resonances] 10 Hz. what % chnge in frequency res

aleksandr82 [10.1K]

Answer:

The percentage change in frequency is 10%.

Explanation:

Given that,

Amplitude decreases by 1/10 per second.

Resonance = 10 Hz

We need to calculate the change in frequency

Using formula of change in frequency

$\Delta f=\Delta A\times R$

Put the value into the formula

$\Delta f=\dfrac{1}{10}\times10$

$\Delta f=1\ Hz$

We need to calculate the resonant frequency

Using formula of resonant frequency

$f_{r}=R-\Delta f$

Put the value into the formula

$f_{r}=10-1$

$f_{r}=9\ Hz$

We need to calculate the percentage change in frequency

Using formula of percentage change in frequency

$f=\dfrac{10-9}{10}$

$f=10\%$

Hence, The percentage change in frequency is 10%.

7 0

4 years ago

Before scientists come up with a scientific question, what do they have to do first?

Mademuasel [1]

Scientist would check what other scientists have said before they come up with their own scientific question. That way they can record the results from the others and compare them with their own findings when they conduct their own experiments and record the findings.

8 0

3 years ago

Calculate the individual positive plate capacity in motive power cell that has 15 plates and a copa of 595 Ah A. 110 Ah B. 75 Ah

Sphinxa [80]

Answer:

The individual positive plate capacity is 85 Ah.

(D) is correct option.

Explanation:

Given that,

Number of plates = 15

Capacity = 595 Ah

We need to calculate the individual positive plate capacity in motive power cell

We have,

15 plates means 7 will make pair of positive and negative.

So, there are 7 positive cells individually.

The capacity will be

$capacity =\dfrac{power}{number\ of\ cells}$

Put the value into the formula

$capacity =\dfrac{595}{7}$

$capacity =85\ Ah$

Hence, The individual positive plate capacity is 85 Ah.

6 0

4 years ago

Read 2 more answers

What are examples of conversion of energy?

Pepsi [2]

A toaster draws electric current ( electrical energy) from a wall outlet and converts these moving electric charges into heat (thermal energy) in the filaments that turn red hot to cook your toast. I hope that helps you

3 0

3 years ago