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4 years ago

WILL GIVE BRAINLIEST AND 10 POINTS!!!!!!!!!!!!!!!!!

Physics

2 answers:

Nady [450]4 years ago

7 0

Answer:

Therefore, Two waves have the same direction of displacement .

Explanation:

Constructive interference of light:

The interference of two or more waves equal frequency and phase, resulting in their mutual reinforcement producing a single amplitude to the sum amplitudes individual.

Example : constructive interference is when you have two speakers facing each other. Then, play the same music at the same time.

poizon [28]4 years ago

3 0

Two waves have the same direction of displacement

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A rocket powered sled accelerates a jet pilot in training straight forward from rest to 270 km/h in 12.1 seconds. Find:

Ilia_Sergeevich [38]

Answer:

6.198 m/s²
4.48 s
453.77 m

Explanation:

5 0

3 years ago

An ant does 1 N-m of work in dragging a 0.0020-N grain of sugar. How far does the ant drag the sugar.

algol13

The ant would drag the sugar 500m

Good luck!

8 0

3 years ago

A large fake cookie sliding on a horizontal surface isattached to one end of a horizontal spring with spring constantk = 425 N/m

omeli [17]

Answer:

Explanation:

spring constant k = 425 N/m

a ) At the point of equilibrium

restoring force = frictional force

= kx = 10 N

425 x = 10

x = 2.35 cm

b )

Work done by frictional force

= -10 x 2.35 x 10⁻² x 2 J ( Distance is twice of 2.35 cm )

= - 0.47 J

= Kinetic energy remaining with the cookie as it slides back through the position where the spring is unstretched .

= 425 - 0.47

= 424.53 J

4 0

3 years ago

David wants to experiment with the device, so he connects an ammeter into the circuit and measures 11.5 AA when the device is co

Mandarinka [93]

Answer:

2.42hours

Explanation:

To calculate the time taken to boil the cup of water, we will use the formula

Q = It where

Q is the total energy required to boil the water = 100KJ = 100,000Joules

I is the current = 11.5A

t is the time taken to boil the water

t = Q/I

t = 100,000/11.5

t = 8695.65seconds

t = 2.42hours

4 0

3 years ago

What is the average speed of a cheetah that runs 88 m in 5 seconds

vovangra [49]

So, the average speed of the Cheetah is 17.6 m/s.

<h3>Introduction</h3>

Hello ! I'm Deva from Brainly Indonesia. This time, I will help regarding the average speed. The average speed is obtained from finding the average of the speeds that occur or can be detected from the division between distance and travel time. The average speed can be formulated by :

$\boxed{\sf{\bold{\overline{v} = \frac{s}{t}}}}$