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
worty [1.4K]
2 years ago
11

What is electrical power and how is it measured?

Physics
1 answer:
Sliva [168]2 years ago
8 0

Answer:

power is measured in watts and its the messure of work over time.

Explanation:

You might be interested in
A Rankine cycle with one closed feedwater heater with its drain cascaded backward has a water mass flow rate through the steam g
mamaluj [8]

Answer:Draw a T-s diagram for the ideal Rankine Cycle

Explanation:

6 0
2 years ago
A block of mass 4 kilograms is initially moving at 5m/s on a horizontal surface. There is friction between the block and the sur
emmasim [6.3K]

• Net vertical force on the block:

∑ <em>F</em> = <em>n</em> - <em>w</em> = 0

(<em>n</em> = magnitude of normal force, <em>w</em> = weight)

<em>n</em> = <em>w</em> = <em>m g</em>

(<em>m</em> = mass, <em>g</em> = 9.8 m/s²)

<em>n</em> = (4 kg) (9.8 m/s²) = 39.2 N

• Net horizontal force:

∑ <em>F</em> = -<em>f</em> = <em>m a</em>

(<em>f</em> = mag. of friction, <em>a</em> = acceleration)

We have <em>f</em> = <em>µ</em> <em>n</em> = 0.5 (39.2 N) = 19.6 N, so

-19.6 N = (4 kg) <em>a</em>

<em>a</em> = -4.9 m/s²

With this acceleration, the block comes to a rest from an initial speed of 5 m/s, so that it travels a distance ∆<em>x</em> in this time such that

0² - (5 m/s)² = 2 (-4.9 m/s²) ∆<em>x</em>

∆<em>x</em> = (25 m²/s²) / (9.8 m/s²) ≈ 2.55 m ≈ 2.6 m

8 0
2 years ago
Which material would provide the
Bogdan [553]

Answer:

C) Plastic

Explanation:

Copper, silver, and gold all conduct electricity. Therefore, the material that would provide the most resistance for electricity would be plastic.

8 0
3 years ago
Cora, an electrician, wraps a copper wire with a thick plastic coating. What is she most likely trying to do?
alukav5142 [94]
The correct answer among the choices given is the last option. Cora wrapping the copper wire with a thick plastic coating keeps a current from passing out a wire. The plastic wire here serves as an insulator. An insulator is a material that prevents electricity or current to flow out the circuit. In order to lessen the loss of energy.

HOPE THIS HELPS!
6 0
3 years ago
Read 2 more answers
Why is a spectrum of colors produced when white light passes through a prism?
shutvik [7]

Answer:

Because each color is refracted differently, each bends at a different angle, resulting in a fanning out and separation of white light into the colors of the spectrum.

7 0
2 years ago
Read 2 more answers
Other questions:
  • Why are overuse injuries particularly frustrating set-backs?
    13·2 answers
  • Which is a transverse wave that requires a medium to move?
    9·2 answers
  • A car drives 215 km east and then 45 km north. What is the magnitude of the car’s displacement? Round your answer to the nearest
    13·2 answers
  • A single mass (m1 = 3.5 kg) hangs from a spring in a motionless elevator. The spring constant is k = 278 N/m. 1)What is the dist
    8·1 answer
  • A cat’s crinkle ball toy of mass 15g is thrown straight up with an initial speed of 3m/s . Assume in this problem that air drag
    8·1 answer
  • Why are springs made of steel and not of copper.​
    8·2 answers
  • Which of the following is an example of technology influencing science?
    15·2 answers
  • Colossal Cave was formed years ago by underground running water. Today, it is the home to many animals, like bats. These interac
    7·1 answer
  • WILL GIVE BRAINLIEST AND 50 POINTS!
    14·2 answers
  • When a cold air mass and a warm air mass meet but are at a standstill, the boundary is called.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!