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3 years ago

As the wave interacts with a wall, which kind of wave interaction is shown?

Physics

2 answers:

NikAS [45]3 years ago

6 0

reflection thats the answer bois

kramer3 years ago

3 0

Reflection-----------------------------

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You hear that a storm is moving 15km/HR north. You have been given the storm's______

Elodia [21]

You have been given the storm's velocity.

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4 years ago

The drawing shows an equilateral triangle, each side of which has a length of 2.00 cm. Point charges are fixed to each corner, a

Kipish [7]

Answer:

$-2.60097\times 10^{-6}\ C$

Explanation:

k = Coulomb constant = $8.99\times 10^{9}\ Nm^2/C^2$

r = Distance between charges = 2 cm

The electric force is given by

$F=\dfrac{k4\times 10^{-6}q_A}{r^2}$

Also

$F=\dfrac{k4\times 10^{-6}q_B}{r^2}$

The sum of the force is given by

$\sum F=\dfrac{k4\times 10^{-6}q_A}{r^2}cos 30+\dfrac{k4\times 10^{-6}q_B}{r^2}cos 30\\\Rightarrow \sum F=2\dfrac{k4\times 10^{-6}q_A}{r^2}cos 30\\\Rightarrow q_a=\dfrac{\sum Fr^2}{2\times k4\times 10^{-6}cos30}\\\Rightarrow q_a=\dfrac{405\times 0.02^2}{2\times 8.99\times 10^9\times 4\times 10^{-6}cos30}\\\Rightarrow q_a=2.60097\times 10^{-6}\ C$

Thus $q_a=q_b=-2.60097\times 10^{-6}\ C$ .

The negative sign is because the force points downward which is taken as negative

7 0

4 years ago

An escalator carries you from one level to the next in an airport terminal. The upper level is 4.4m above the lower level, and t

STALIN [3.7K]

Answer:

Part A W= 2772J

Part B = -2.772J

Explanation:

Work = force × distance

Part A when you move from lower to upper level

= mgh

= 63× 4.4×10

=2772J

=2.772KJ

Part B

When you move from upper to lower

The acceleration due to gravity becomes negative -10m/s^2

Therefore Work =-2772KJ

Work = -2.772KJ

8 0

3 years ago

Hydrogen fluoride gas (HF) and sodium hydroxide (NaOH) react in a test tube. They form water and sodium fluoride (NaF). Which ty

AfilCa [17]

This reaction is a double replacement reaction. Hydrogen in the hydrogen fluoride gets replaced by sodium of the sodium hydroxide. HF is a weak acid and NaOH is a strong base. So, double replacement produces sodium fluoride and water molecules.

6 0

3 years ago

Small, solid pieces of material that come from rocks or living things are called ____

Over [174]

It will be sediment, that's the only thing can be in a rock and it's a living thing. Sediment is part of a rock so that's your answer this is a 7th grade question not that hard I'm in the 5th grade no officence but enjoy your answer

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4 years ago