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2 years ago

What timeis the name of the units that

Physics

1 answer:

Westkost [7]2 years ago

7 0

Answer:

Joule is the name of the unit that are normally used to measure energy

Explanation:

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What are the two forces that oppose each other while a star?

Rufina [12.5K]

While self-gravity pulls the star inward and tries to make it collapse, thermal pressure (heat created by fusion) pushes outward. These two forces cancel each other out in a main sequence star, thus making it stable.

5 0

3 years ago

Light passes through a 0.15 mm-wide slit and forms a diffraction pattern on a screen 1.25 m behind the slit. The width of the ce

Elena L [17]

Answer:

The value is $\lambda = 900 \ nm$

Explanation:

From the question we are told that

The width of the slit is $a = 0.15 \ mm = 0.00015 \ m$

The distance of the screen from the slit is D = 1.25 m

The width of the central maximum is $y = 0.75 \ cm = 0.0075 \ m$

Generally the width of the central maximum is mathematically represented as

$y = \frac{m * D * \lambda}{a}$

Here m is the order of the fringe and given that we are considering the central maximum, the order will be m = 1 because the with of the central maximum separate's the and first maxima

$\lambda = \frac{a y}{ m * D }$

=> $\lambda = \frac{ 0.000015 * 0.0075}{ 1 * 1.2 }$

=> $\lambda = 900 *10^{-9} \ m$

=> $\lambda = 900 \ nm$

6 0

3 years ago

A main difference between gravitational and electric forces is that electrical forces

ANTONII [103]

You can’t just do this tm u have to do it now

7 0

3 years ago

What is the frequency of a wave with a speed of 45 m/s and a wavelength of 2.5 m

mart [117]

Answer:

.05

Explanation:

wavelength/frequency = wave speed

45 = 2.5/x

x = 0.05

5 0

3 years ago

Explain how to identify a starting position<br> on a line.

olga nikolaevna [1]

Answer:

We can easily find out the beginning point of the line by using dot representation. When it comes to position vector, it expresses the exact position of certain object from the starting point of the coordinate system. The vector is a straight line that has a certain end which is fixed to its body

4 0

3 years ago