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4 years ago

Starting friction is the force caused by tiny bonds forming between two surfaces.

Physics

1 answer:

just olya [345]4 years ago

4 0

True because the length along a path between two points of friction forces that resists motion.

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Ram covers distance of zoom in 50 seconds what is his speed

Reptile [31]

Answer:

speed = distance/time

this is the equation substitute your values and get the answer....btw check you question again..

7 0

3 years ago

Given a double slit apparatus with slit distance 2 mm, what is the theoretical maximum number of bright spots that I would see w

katen-ka-za [31]

Answer:

The values is $m_{max} = 8001 \ bright \ spots$

Explanation:

From the question we are told that

The slit distance is $d = 2 \ mm = 2*10^{-3} \ m$

The wavelength is $\lambda = 500 \ nm = 500 *10^{-9} \ m$

At the first half of the screen from the central maxima

The number of bright spot according to the condition for constructive interference is

$n = \frac{d * sin (\theta )}{\lambda}$

For maximum number of spot $\theta = 90^o$

$n = \frac{2*10^{-3} * sin (90 )}{500 *10^{-9}}$

$n =4000$

Now for the both sides plus the central maxima we have

$m_{max} = 2 * n + 1$

substituting values

$m_{max} = 2 * 4000 + 1$

$m_{max} = 8001 \ bright \ spots$

6 0

4 years ago

The unit of energy is a derived quantity. why

Lubov Fominskaja [6]

Answer:

Energy is the tendency to do work.

Explanation:

Energy unit is Joule

1 Joule means 1 kgm²/s²

Energy =Kinertic energy

=1/2 mv²

unit= kgm²/s²

So energy unit is derived unit.

7 0

3 years ago

Which of the following utilize electromagnetic induction to operate?

kolbaska11 [484]

The correct answer is A. B. C. Hope this helps!!

5 0

4 years ago

Read 2 more answers

What is the lowest level of sound that can be detected by human hearing? 0 Hz 10 Hz 20 Hz 100 Hz

maxonik [38]

These choices are not "levels" of sound. They're frequencies of sound.

The lower limit of audible frequency is usually considered to be 20 Hz.
But there are some people with ears that can hear 10 Hz, and others ...
particularly the elderly ... who can't hear anything below 100 Hz.

The question is a rather poor one.

8 0

4 years ago

Read 2 more answers