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3 years ago

The diagram below shows a flat mirror reflecting

Physics

2 answers:

egoroff_w [7]3 years ago

7 0

Answer:

Explanation

your welcome

sukhopar [10]3 years ago

6 0

Answer:

TO MEASURE THE ANGLES OF RAYS

Explanation:

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An object with a mass m slides down a rough 370 inclined plane where the coefficient of kinetic friction is 0.20. If the plane i

Svetllana [295]

Answer:

$v \approx 9.312\,\frac{m}{s}$

Explanation:

The Free Body Diagram of the system is presented in the image attached below. The final speed is determined by means of the Principle of Energy Conservation and the Work-Energy Theorem:

$K_{A} + U_{g,A} = K_{B} + U_{g,B} + W_{loss}$

$K_{B} = K_{A} + U_{g,A}-U_{g,B} - W_{loss}$

$\frac{1}{2}\cdot m \cdot v^{2} = m\cdot g \cdot s\cdot \sin \theta - \mu_{k}\cdot m \cdot g \cdot s \cos \theta$

$\frac{1}{2}\cdot v^{2} = g\cdot s \cdot (\sin \theta - \mu_{k}\cdot \cos \theta)$

$v = \sqrt{2\cdot g \cdot s \cdot (\sin \theta - \mu_{k}\cdot \cos \theta)}$

$v = \sqrt{2\cdot (9.807\,\frac{m}{s^{2}} )\cdot (10\,m)\cdot (\sin 37^{\textdegree} - 0.2\cdot \cos 37^{\textdegree})}$

$v \approx 9.312\,\frac{m}{s}$

3 0

3 years ago

A team of engineers is working together to design a new airplane. The team members each live in different cities. For which purp

Ierofanga [76]

Answer:

The internet is most useful to them because they use it to communicate.

Explanation:

If I were to send a message to my brother in Florida, through the internet, while I'm in Pennsylvania he would get it in minutes. On the other hand if I were going to meet him and then explain what I wanted to tell him in person it would take a much longer time.

8 0

3 years ago

What is magnetism please define it

Scrat [10]

Hello There!

It's a Property of matter where atoms in an object are aligned into domains

4 0

4 years ago

If the Velocity of the body<br> is increased to 3v, determine the kinetic energy

Rom4ik [11]

ANSWER; KE=5mv^2 so it is proportional to v^2.

Explanation:So if you triple the velocity you are replacing v with 3v. Then you get (3v)^2=9v^2.

7 0

3 years ago

A wave has a period of 2s and a wavelength of 5m. What is the speed of the wave?

horrorfan [7]

Answer:

10m per Second

Explanation:

8 0

3 years ago