2 years ago

Why does heat cause a substance to expand?

Physics

1 answer:

natita [175]2 years ago

5 0

Middle school? lol but, the third one.

You might be interested in

Bungee jumping is an example of

Shtirlitz [24]

I think it’s c gravitational and elastic energy

5 0

2 years ago

Read 2 more answers

Calculate the pOH of this solution. pH = 1.90 pOH = right answer get brainliest

laila [671]

The answer is 12.10 pOH

4 0

2 years ago

Read 2 more answers

A block of wood has A mass of 200g give the mass in kg showing long conversion

anyanavicka [17]

Conversion of mass from grams into kg :

$1kg = 1000g$

$1g = \dfrac{1}{1000} \: kg$

$200g = \dfrac{200}{1000} \: kg$

$200g = 0.2kg$

4 0

2 years ago

(AKS 1c) A bowler rolls a bowling ball with a speed of 4 m/s. It took 2s to reach the pins at the end of the lane. What is the f

Advocard [28]

Answer:

B is the answer

Explanation:

When A is divided by 7x, it multiplies to0.81

6 0

3 years ago

A light with a second-order dark band forms a diffraction angle of 20.0 degrees. The diffraction grating has 200.0 lines per mm.

kolezko [41]

Answer:

The value is $\lambda = 684 \ nm$

Explanation:

From the question we are told that

The order of the dark fringe is m = 2

The diffraction angle is $\theta = 20^o$

The diffraction grating is $l = 200\ lines\ per\ mm \ = \ 200000\ lines\ per\ m$

Generally separation between the slits is mathematically represented as

$d = \frac{1}{ 200000}$

=> $d = 5 *10^{ -6} \ m$

Generally the condition for destructive interference is mathematically represented as

$dsin(\theta ) = (m - \frac{1}{2} ) \lambda$

=> $5 *10^{-6} sin(20) = [2 + \frac{1}{2}] * \lambda$

=> $\lambda = 684 *10^{-9} \ m$

=> $\lambda = 684 \ nm$

7 0

2 years ago

Read 2 more answers