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Anarel [89]
3 years ago
14

Please fill in question 3 (i) fast please science homework

Physics
1 answer:
Kitty [74]3 years ago
6 0
The answers are 3.3kWh, 1.2kWh, and 120kWh.

Multiply the amount of kW used per hour by the amount of time it was powered and you receive your answer.
You might be interested in
How much horsepower is produced by 2023 z’s 3. 0-liter twin-turbo 6-cylinder engine?.
garri49 [273]

400 horsepower is produced by 2023 z's 3. 0-liter twin-turbo 6-cylinder engine.

<h3>What is horsepower?</h3>

The power an engine produced is referred to as horsepower. In the British Imperial System, one horsepower equals 33,000 foot-pounds of work per minute, i.e., the force required to lift a mass of 33,000 pounds off the ground in a single motion for one minute.

The new Z's 3.0-liter twin-turbo V6 engine produces 400 horsepower and 350 pound-feet of torque. This is 68 horsepower and 80 lb-ft more than the previous 370Z. The 6-speed manual transmission that comes standard or the optional 9-speed automatic transmission with paddle shifters are both paired with this one engine option.

Learn more about horsepower here:

brainly.com/question/17918928

#SPJ4

6 0
2 years ago
A German Shepherd takes 4 hours to cover a distance, if it travels at a speed of 36mph. What should be its speed to cover the sa
agasfer [191]

Answer:

v₂ = 48 mph

Explanation:

We know that,

Speed = distance/time

A German Shepherd takes 4 hours to cover a distance, if it travels at a speed of 36mph.

We need to find the speed to cover the same distance in 3 hours.

\dfrac{v_1}{v_2}=\dfrac{t_2}{t_1}\\\\v_2=\dfrac{v_1t_1}{t_2}\\\\v_2=\dfrac{36\times 4}{3}\\\\v_2=48\ mph

So, the new speed is 48 mph.

3 0
3 years ago
Provide at least three reasons why friction is needed.
serious [3.7K]
Without friction, we would not be able to stop walking since we would just keep slipping like on ice.

Without friction, objects would just slip and fall with a simple blow of air

And finally without friction we wouldn't be able to use machinery like cars and etc since they would just fly off

Hope this helps!
(tell me if im right)
5 0
4 years ago
Read 3 more answers
(c) The ball leaves the tennis player's racket at a speed of 50 m/s and travels a
Mazyrski [523]

Answer:

t=0.417s

Explanation:

After the ball hits the racket it is in freefall(assume air resistance as negligible)

so a=-g

use

x-x0=v0t+1/2at^2

Plug in givens

20=50t-4.9t^2

Solve quadratic equation using quadratic formula

t= 0.417 seconds, (the other answer is extraneous because it is too big because in 1 second, the ball travels 50 meters)

6 0
3 years ago
Number 3,4, 6, and 8
siniylev [52]

1. When the object is waiting to be released, it is storing a lot of potential energy. When it is released, the potential energy that was once stored is converted into kinetic energy.

3 0
3 years ago
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