1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
makkiz [27]
4 years ago
12

Which best describes reflection and refraction?

Physics
1 answer:
FromTheMoon [43]4 years ago
7 0
Refraction is when it is broken light, or how much propagating waves are bent. Reflection is light bouncing off of an object and being transferred somewhere else, like a flashlight on a mirror whose light is seen on the ceiling. 
You might be interested in
Determine the momentum of a helium atom (m = 6.696 x 10-27 kg) if the atom is traveling at 1.03% of the speed of light.
rjkz [21]
Are there any options you can choose from?
7 0
4 years ago
A ball is connected to a light spring suspended vertically. When pulled downward from its equilibrium position and released, the
babunello [35]

Answer:

The forms of energy involved are

1. Kinetic energy

2. Potential energy

Explanation:

The system consists of a ball initially at rest. The ball is pulled down from its equilibrium position (this builds up its potential energy) and then released. The released ball oscillates due to a continuous transition between kinetic and potential energy.

5 0
4 years ago
A radio wave sent from the surface of the earth reflects from the surface of the moon and returns to the earth. The elapsed time
frez [133]

Answer:

7.92 × 10^8 M

8 0
4 years ago
8. John has to hit a bottle with a ball to win a prize. He throws a 0.4 kg ball with a velocity of 18 m/s. It hits a 0.2 kg bott
nasty-shy [4]

<u>Answer:</u> The ball is travelling with a speed of 5.5 m/s after hitting the <u>bottle.</u>

<u>Explanation:</u>

To calculate the speed of ball after the collision, we use the equation of law of conservation of momentum, which is given by:

m_1u_1+m_2u_2=m_1v_1+m_2v_2

where,

m_1,u_1\text{ and }v_1 are the mass, initial velocity and final velocity of ball.

m_2,u_2\text{ and }v_2 are the mass, initial velocity and final velocity of bottle.

We are given:

m_1=0.4kg\\u_1=18m/s\\v_1=?m/s\\m_2=0.2kg\\u_2=0m/s\\v_2=25m/s

Putting values in above equation, we get:

(0.4\times 18)+(0.2\times 0)=(0.4\times v_1)+(0.2\times 25)\\\\v_1=5.5m/s

Hence, the ball is travelling with a speed of 5.5 m/s after hitting the bottle.

5 0
3 years ago
In February 1955, a paratrooper fell 1200 ft from an
-Dominant- [34]

Answer:

s=1.1107\ m is the minimum depth of snow for survivable stopping.

Explanation:

Given:

  • terminal velocity of fall, u=56\ m.s^{-1}
  • mass of the paratrooper, m=85\ kg
  • force on the paratrooper by the ice to stop him, F=1.2\times 10^5\ N

<u>Firstly, we calculate the deceleration caused in the snow:</u>

a=\frac{F}{m}

a=\frac{120000}{85}

a=1411.765\ m.s^{-2}

Now, using equation of motion:

v^2=u^2+2a.s ....................(1)

where:

v = final velocity of the body after stopping

u = initial velocity of the body just before hitting the snow

a = acceleration of the body in the snow

s = distance through in the snow

Putting respective values in eq. (1)

0^2=56^2+2\times (-1411.765)\times s

s=1.1107\ m

5 0
3 years ago
Other questions:
  • 30. A generation is about one-third of a lifetime. Approximately how many generations have passed since the year 0 AD?
    10·1 answer
  • Which of the following planets in our solar system has the least amount of inertia?
    15·1 answer
  • A 12.2-m-radius Ferris wheel rotates once each 28 s. (a) What is its angular speed (in radians per second)?(b) What is the linea
    5·1 answer
  • How many time zones is the world divided into
    8·2 answers
  • PLEASE HELP!!!
    12·1 answer
  • Water flows over a section of Niagara Falls at the rate of 1.4 × 106 kg/s and falls 49.8 m. How much power is generated by the f
    10·1 answer
  • Si tenemos tres cubos del mismo tamaño (hierro, madera e icopor). ¿Qué diferencias puede encontrar entre ellos?
    6·1 answer
  • Hellloooooooooo am there with uu​
    12·2 answers
  • a fly wheel of mass 12kg and radius 0.5m with wrapped around it.on the end of the rope is 2kg load.intially it is at rest.calcul
    9·1 answer
  • Which of the following is NOT a function of the digestive system? *
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!