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
vichka [17]
2 years ago
11

The electric motor in the car is powered by a battery.

Physics
1 answer:
Vinil7 [7]2 years ago
6 0

Answer:

I = 30 A.

Explanation:

Given that,

The voltage of the battery, V = 230 V

Power used to charge the battery, P = 6.9 kW

We need to find the current used to charge the battery. The formula for the power is given by :

P = VI

Where

I is current

So,

So, the required current is 30 A.

You might be interested in
Which sound waves in the electromagnetic spectrum are considered low energy waves
Mariulka [41]
Radio waves are the waves with the lowest energy in the electromagnetic spectrum. X-rays and gamma rays are the highest. Sound is not part of the electromagnetic spectrum.
7 0
3 years ago
PLZ HELPPPPP!! i'll give brainliest
kati45 [8]

Answer:

12N to the right.

Explanation:

There is a force of 12N upwards and a force of 12N downwards: these cancel out.

Assign a negative value to forces towards the left, and a positive value to the forces towards the right: -3N and +15N

Combine them: -3N+15N = 12N

The net force has a magnitude of 12N, and since our answer was positive, it acts towards the right.

5 0
3 years ago
How much total energy is dissipated in 10. seconds
noname [10]

Answer : Total energy dissipated is 10 J

Explanation :

It is given that,

Time. t = 10 s

Resistance of the resistors, R = 4-ohm

Current, I = 0.5 A

Power used is given by :

P=\dfrac{E}{t}

Where

E is the energy dissipated.

So, E = P t.............(1)

Since, P=I^2R

So equation (1) becomes :

E=I^2Rt

E=(0.5\ A)^2\times 4\Omega \times 10\ s

E=10\ J

So, the correct option is (3)

Hence, this is the required solution.

7 0
3 years ago
Read 2 more answers
Which of the following would most likely be considered nonpoint source pollution
fredd [130]
The best answer is b) increased turbidity from erosion.

Nonpoint source pollution generally happens as a result of many systems interacting, and is not directly attributed to one event or pollutant. Generally, natural environmental systems participate in pollution of this kind, regardless of whether or not human activity was a factor. Examples include water runoff, or erosion. 

The other pollutants listed have a direct cause and direct effect, the animal waste goes directly from the animals to the ground they live on, the car shop directly sumps the oil on the ground, and the oil tank leaks directly into the earth. Erosion causing turbidity is a less direct form of pollution, and is due to the synthesis of several natural phenomena<span />
8 0
3 years ago
The Sun is only an average sized star. Why does it appear so much brighter than any other star?
aivan3 [116]

Because it's so much closer to us than any other star.

8 0
3 years ago
Other questions:
  • A bicycle takes 8.0 seconds to accelerate at a constant rate from rest to a speed of 4.0 m/s. If the mass of the bicycle and rid
    13·1 answer
  • The pacific plate is located under the pacific ocean. Its movement has created the island arc and the ring of fire. This plate d
    13·2 answers
  • A 15,000-watt radio station transmits at 1700 kHz.
    15·2 answers
  • What is the speed of sound dependent on?
    5·1 answer
  • A snail can move approximately 0.30 meters per minute. How many meters can the snail cover in
    14·2 answers
  • A closed, rigid tank fitted with a paddle wheel contains 2 kg of air, initially at 300 K. During an interval of 5 minutes, the p
    7·1 answer
  • If the toy car moved with a velocity of 2m/s to the south for 8s; what is the total displacement of the toy car?
    9·1 answer
  • Create a hypothesis for this testable question: How does price affect the amount of chocolate people buy?
    14·1 answer
  • Which of the following will cause water to change to ice!
    6·2 answers
  • A body is acted upon by a constant force directed towards a fixed point. the magnitude of the force varies inversely as the squa
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!