All categories

4 years ago

How much power is used by a 12.0-v car battery that draws 0.5 a of current?

1 answer:

3 0

The electric power used by the car battery is given by
$P=VI$

where
V is the voltage of the battety
I is the current
P is the electric power.

For the battery in our problem, the voltage is V=12.0 V while the current intensity is I=0.5 A, so the power used by the battery is
$P=VI=(12.0 V)(0.5 A)=6.0 W$

You might be interested in

Please help me :) ty

slega [8]

1. Physical Property
2. Chemical Change
3. Chemical Change
4. Chemical Property
5. Physical Property
6. Physical Change
7. Chemical Change
8. Physical Change
9. Chemical Change
10. Physical Property
11. Physical Property
12. Chemical Change
13. Chemical Change
14. Chemical Property
15. Chemical Change

Explanation:
Physical Property: A property of matter that can be seen, felt, tasted, smelled, or heard.
Physical Change: The change of an object of matter's physical property/properties.
Chemical Property: An element/object of matter's internal property/properties
Chemical Change: An element/object of matter's internal property/properties being altered or changed

8 0

4 years ago

If you have a pet that isn't getting nourishment from the food it eats, which organ might

tatuchka [14]

An organ I think that will have the problem is probably the kidney in an animal ! I tried my best

4 0

3 years ago

In the analogy for how a wave travels along a line of dominoes standing on end, each domino represents___________.

Alex777 [14]

Answer:

im 99% sure its initial disturbance

Explanation:

6 0

3 years ago

A car of mass 2400kg accelerates from 10m/s to 30m/s if the force is 12000N what is the distance

leonid [27]

Explanation:

Initial velocity (u) = 10 m/s
Final velocity (v) = 30 m/s
Mass (m) = 2400 kg
Force (F) = 12000 N

Let us find the time taken first.

→ F = ma

Acceleration (a) = (v – u)/t

→ 12000 = 2400 × (30 – 10)/t

→ 12000 ÷ 2400 = (20)/t

→ 5 = 20/t

→ 5t = 20

→ t = 20 ÷ 5

→ t = 4 seconds

Now, find the acceleration.

→ a = (v – u)/t

→ a = (30 – 10)/4

→ a = 20/4

→ a = 5 m/s²

Now, by using the third equation of motion,

→ v² – u² = 2as

s = distance

→ (30)² – (10)² = 2 × 5 × s

→ 900 – 100 = 10s

→ 800 = 10s

→ 800 ÷ 10 = s

→ 80 m = s

Therefore, distance travelled is 80 m.

4 0

3 years ago

Why is velocity proportial to pressure?

ale4655 [162]

Hope it helps

Mark my answer brainliest

8 0

3 years ago