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
vekshin1
2 years ago
13

The following are explanations why there is light. Which of the following is true?

Physics
1 answer:
Andrew [12]2 years ago
8 0
What are the answers to choose from
You might be interested in
1. A 3.0 kg mass is tied to a rope and swung in a horizontal circle. If the velocity of the mass is 4.0 ms and
saul85 [17]

10.67m/s²

32N

Explanation:

Given parameters:

Mass of the body = 3kg

velocity of the mass = 4m/s

radius of circle = 0.75m

Unknown:

centripetal acceleration = ?

centripetal force = ?

Solution:

The centripetal force is the force that keeps a radial body in its circular motion. It is directed inward:

   Centripetal acceleration  = \frac{v^{2} }{r}

   v is the velocity of the body

    r is the radius of the circle

  putting in the parameters:

   Centripetal acceleration = \frac{4^{2} }{0.75}

    Centripetal acceleration = 10.67m/s²

Centripetal force = m  \frac{v^{2} }{r}

          m is the mass

 Centripetal force = mass x centripetal acceleration

                              = 3 x 10.67

                              = 32N

learn more:

Acceleration brainly.com/question/3820012

#learnwithBrainly

4 0
3 years ago
When electromagnetic fields interact with charged particles,
enyata [817]

Answer:

a

Explanation:

they became stronger

5 0
2 years ago
did anyone do the, kinetic energy lab report in physics?? plzzz help a girl outttttttt i need answerss????ill give you as much b
Tema [17]

Answer:

yes

Explanation:

8 0
2 years ago
A boy pulls a sled 46 m across a flat field with a force of 120 N. The force acts on the sled through a rope at a 23° angle with
ivann1987 [24]

Answer:

5520

Explanation:

w=f×d

w=120×46

w=5.52×10^3

8 0
3 years ago
What is the speed over the ground of an airplane flying at 100 km/h relative to the air caught in a 100-km/h right-angle crosswi
Rudiy27

Answer:

141.42 km/h

Explanation:

Since this is a 100km/h right angle crosswind, the speed vector with respect to the ground is the vector speed of the airplane with respect to air + the vector speed of the cross-wind with respect to the ground

<100,0> + <0,100> = <100,100>

This vector has a magnitude of

v = \sqrt{v_1^2 + v_2^2} = \sqrt{100^2 + 100^2} = \sqrt{10000 + 10000} = \sqrt{20000} = 141.42  km/h

4 0
3 years ago
Other questions:
  • Third-largest ocean?
    11·2 answers
  • Explain how fossil fuel use in the US makes us vulnerable to the demands of foreign countries.
    12·2 answers
  • ) What is the regression equation? Remember, use 3 decimal places for ALL answers. mu^^\^y|x = + x (b) What is the estimated mea
    14·1 answer
  • The work input = _____. Fi × di Fi ÷ di Fo × do Fo ÷ do
    11·1 answer
  • What is the Nitrogen Family
    7·1 answer
  • A kettle is rated at 1 kW, 220 V. Calculate the working resistance of the kettle.
    10·1 answer
  • you are running out and the first mike takes 10 minutes the second mile takes you 20 minutes this is an example of
    11·2 answers
  • Under which of the following conditions is the magnitude of the average velocity of a particle moving in one dimension smaller t
    7·1 answer
  • As an object moves, the distance it travels increases with time. Agree Disagree
    9·1 answer
  • According to max weber, flaunting of one’s wealth to show one’s status is called?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!