Suppose the angle of reflection measures 40 degrees. What is the angle of incidence?

Physics

2 answers:

Damm [24]2 years ago

8 0

Answer:

Explanation:

If it is a flat mirror, the reflection and incidence are the same -- 40 degrees.

If it is anything else, more information is needed.

Nostrana [21]2 years ago

4 0

Answer:

A. 40 degrees

Explanation:

The angle of reflection is equal to the angle of incidence. So both are equal.

When the rays of light fall incident on a plane angles of incidence and reflection are equal.

You might be interested in

The term pressure most nearly refers to which of the following?

Arte-miy333 [17]

The term pressure refers to the force per area created by the weight
of anything whose weight is distributed over an area, such as the
Earth's atmosphere, a lake, a gas inside a sealed jar, or a pointy
high heel.

5 0

3 years ago

Read 2 more answers

If time travel to the future existed, doesn't that mean that the future has already occurred and that we are living in the past?

kodGreya [7K]

Answer:

As of right now the techology has not been invented to time travel

if we were to time travel to the future from where that person travled from would be the past and to them the people from where they came from are living in the past

Explanation:

3 0

2 years ago

An electric motor with a 1200 hp output drives a machine with an efficiency of 60%. What is the energy output of the machine per

kirill [66]

Answer:

536,904 J/s

Explanation:

The energy output from motor is the input energy in the machine.

We know that efficiency is percentage energy ouput to energy input, and expressed as

$n=\frac {E_o}{E_i}$

Where n and E represent efficiency and energy respectively, subscripts o and i represent output and input respectively. Since for the machine we have the input energy then the output will be the product of efficiency and input energy

Energy output=0.6*1200 hp=720 hp

Converting hp to J/s we multiply by 745.7

Energy is 720*745.7=536,904 J/s

4 0

2 years ago

A 5 kg ball is suspended on one cable. Calculate the tension in the cable

ludmilkaskok [199]

Answer:

49N

Explanation:

F=ma

We know the mass is 5kg, and since the ball is suspended on one cable, the acceleration is g, 9.8m/s^2