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Anika [276]
2 years ago
13

Which vector has an x-component with a length of 3? А. С. B. d C. a D. b

Physics
2 answers:
zhannawk [14.2K]2 years ago
6 0

Answer:

D. b

Explanation:

the endpoint of vector b is at 3, which means the length is 3

worty [1.4K]2 years ago
4 0

Answer:

B.d

mark me as brainlist

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In electronic circuits:______.
trapecia [35]

Answer:

(a), (c) and (e) s correct.

Explanation:

a. the power used by a circuit is the resistance times the current squared.

The power is given by P = I^2 R, so the statement is correct.  

b. electric and magnetic fields are transporting the energy.

false

c. electrons are transporting the energy.

The energy is transferred by flow of electrons. It is correct.  

d. the power used by a circuit is the voltage times the current squared.

The power is given by P  = V I, the statement is wrong.  

e. the power used by a circuit is the current times the voltage.

The power is given by P  = V I, the statement is correct.  

4 0
2 years ago
What is the kinetic energy of a 620.0 kg roller coaster moving with a velocity of 9.00 m/s?
Anika [276]
Ek = 1/2 x m x v ²

1/2 x 620.0 x 9.00 ² = 25,100
3 0
3 years ago
Read 2 more answers
What is it called cavity left behind in the rock after an organism's hard part has dissolved.
Lapatulllka [165]

Mold

Explanation:

A mold is a cavity that is left behind in the rock after an organism hard part has been dissolved. These are important fossils that useful in relative dating.

  • Some hard parts of organism are preserved in form of molds in soft sediments.
  • The outline and important details of the hard part is preserved when the mold dissolves away.
  • Fossil molds are representative on the internal outline of the hard parts of organisms.
  • They are usually recognized as a part of body fossil in a section.

learn more:

Fossils brainly.com/question/7382392

#learnwithBrainly

5 0
3 years ago
What happens to the magnitude of the gravitational force as the distance between two bodies increase?
Anna [14]

Answer:

The magnitude of the force will decrease

Explanation:

The gravitational force is one of the four fundamental forces of nature. It is an attractive force exerted between every object having mass.

Its magnitude is given by the equation:

F=\frac{Gm_1 m_2}{r^2}

where

G is the gravitational constant

m1 is the mass of the first object

m2 is the mass of the second object

r is the separation between the objects

As we see from the equation, the magnitude of the gravitational force is inversely proportional to the square of the distance between the objects:

F\propto \frac{1}{r^2}

Therefore, this means that as the distance between two bodies increases, the gravitational force will decrease.

7 0
2 years ago
Which best describes what occurs when an object takes in a wave as the wave hits it?.
statuscvo [17]

Answer:

Absorption

Explanation:

7 0
2 years ago
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