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
Lunna [17]
3 years ago
9

What is DC in electricity mean?

Physics
1 answer:
Stels [109]3 years ago
8 0

Answer:

Direct Current

Explanation:

The electricity only flows in one direction.

You might be interested in
Energy Calculation 4. What is the gravitational potential energy of an object that has a mass of 100kg it is 10m off of the grou
konstantin123 [22]
100kg * 9.8N/kg * 10m = 9800

3 0
2 years ago
How do you comprehend the fourth dimension?
sergij07 [2.7K]
The fourth dimension is technically time. the fourth dimension that you are talking about is actually impossible to comprehend.
6 0
2 years ago
An electron is fired horizontally at 2.5 x 10 m/s between two horizontal parallel plates 7.5 cm long, as shown in the diagram. T
DochEvi [55]

Answer:

the answer to your question is 2.5

Explanation:

8 0
2 years ago
Given the following situation of marble in motion on rolling 10 m/s horizontally from a height of 1.5-m with negligible friction
Norma-Jean [14]

Answer:

The ball would hit the floor approximately 0.55\; \rm s after leaving the table.

The ball would travel approximately 5.5\; \rm m horizontally after leaving the table.

(Assumption: g = 9.81\; \rm m \cdot s^{-2}.)

Explanation:

Let \Delta h denote the change to the height of the ball. Let t denote the time (in seconds) it took for the ball to hit the floor after leaving the table. Let v_0(\text{vertical}) denote the initial vertical velocity of this ball.

If the air resistance on this ball is indeed negligible:\displaystyle \Delta h = -\frac{1}{2}\, g\, t^{2} + v_0(\text{vertical}) \cdot t.

The ball was initially travelling horizontally. In other words, before leaving the table, the vertical velocity of the ball was v_0(\text{vertical}) = 0 \; \rm m \cdot s^{-1}.

The height of the table was 1.5\; \rm m. Therefore, after hitting the floor, the ball would be 1.5\; \rm m \! below where it was before leaving the table. Hence, \Delta h = -1.5\;\rm m.

The equation becomes:

\displaystyle -1.5 = -\frac{9.81}{2} \, t^{2}.

Solve for t:

\displaystyle t = \sqrt{1.5 \times \frac{2}{9.81}} \approx 0.55.

In other words, it would take approximately 0.55\; \rm s for the ball to hit the floor after leaving the table.

Since the air resistance on the ball is negligible, the horizontal velocity of this ball would be constant (at v(\text{horizontal}) =10\; \rm m \cdot s^{-1}) until the ball hits the floor.

The ball was in the air for approximately t = 0.55\; \rm s and would have travelled approximately v(\text{horizontal})\cdot t \approx 5.5\;\rm m horizontally during the flight.

4 0
2 years ago
A baseball player slides into second base. What happens to his momentum?
Alex
Due to friction from sliding against the ground, the player decelerates in 1 direction. Thus his momentum decreases.
4 0
3 years ago
Read 2 more answers
Other questions:
  • Instructions:Select the correct answer.
    15·1 answer
  • in which phase change does a substance change from a solid to a gas vapor without changing to a liquid first?
    10·1 answer
  • Two ways strong and weak forces are alike?
    15·1 answer
  • Escape speed from the surface of earth is about
    6·2 answers
  • An automobile with an initial speed of 4.92 m/s accelerates uniformly at the rate of 3.2 m/s2 . Find the final speed of the car
    9·1 answer
  • What are shock waves? How are they produced?
    14·1 answer
  • ⦁ Consider an atom. Which contributes most to the mass of the atom?
    7·1 answer
  • What type of heat transfer is happening when the sun warms your face
    11·2 answers
  • if something is shot straight up in the air at a speed of 17 m/s, how much time before I it will hit the ground ​
    6·1 answer
  • ¿Qué nombre recibe un electrón que abandona el espacio interno del átomo dirigiéndose al exterior del átomo?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!