All categories

3 years ago

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

Physics

1 answer:

Vinil7 [7]3 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

A pendulum bob is made from a sphere filled with water. What would happen to the frequency of vibration of this pendulum if the

Nady [450]

Answer:

The frequency would not change because the frequency of a simple pendulum does not depend on mass.

Explanation:

7 0

3 years ago

HELP PLZ

Anon25 [30]

Answer:

A = 11.77 m/s²

Explanation:

Mass of box (m) = 66kg

Force (f) = 777n

Acceleration (a) = ??

F = ma

777 = 66 · a

A = $\frac{777}{66}$ = 11.77m/s²

5 0

3 years ago

Read 2 more answers

Describe how a wheel and axle work?

andrezito [222]

A weally works when you pull something and a axle is something that you can push

Explanation:

I hope this helps

7 0

3 years ago

Bartek w czasie 2minut przesunął ruchem jednostajnym kamień na odległość 0,5m.Oblicz moc mięśni Bartka jeśli siła oporów wynsiła

Ipatiy [6.2K]

Answer:

Bartek's muscle power = 2.667 W

Moc mięśni Bartka = 2.667 W

Explanation:

English Translation

Bartek within 2 minutes moved the stone

steadily at a distance of 0.5 m. Calculate Bartek's muscle power , if the resistance force was 640N.

The power, P, expended or generated by moving a body to move a velocity, v, against a resistive force, F is given as

P = Fv

P = ?

F = 640 N

v = velocity = (0.5) ÷ (2×60) = 0.00416667 m/s

P = 640 × 0.0041666667 = 2.667 W

In Polish/Po polsku

Moc P, zużyta lub wytworzona przez poruszanie ciałem w celu przemieszczenia prędkości v przeciwko sile oporowej, F jest podawana jako

P = Fv

P = ?

F = 640 N

v = velocity = (0.5) ÷ (2×60) = 0.00416667 m/s

P = 640 × 0.0041666667 = 2.667 W

Hope this Helps!!!

Mam nadzieję że to pomoże!!

4 0

3 years ago

What does it mean if the reflected beam is above the incident beam? What does it mean if reflected beam is below the incident be

Fittoniya [83]

Answer:

aim at prisma and will have all colors

Explanation:

4 0

3 years ago

Read 2 more answers