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kirza4 [7]
3 years ago
5

Heat engines converts what type of energy into mechanical energy?

Physics
1 answer:
Rasek [7]3 years ago
8 0

It's called a heat engine, so I would guess thermal. 2

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Tom rides his motorcycle at a speed of 15 meters/second for an hour.
Dahasolnce [82]

Answer:

1 hour to ride his motorcycle

4 0
3 years ago
A and B start walking in the same direction at the same time around a circular park of diameter 4200 m. If A walks 10 m more tha
Liono4ka [1.6K]

Answer:

Va = 5000 m / 3600 s = 1.39 m/s

(Va - Vb) 60 = 10

Vb = Va - .167 = 1.22 m/s

(Va - Vb) T = 4200 Π      where T is time for A to complete 1 more lap

.17 T = 4200 Π

T = 24700 Π  time for A to again catch B

N = 1.39 * 24700 Answer:

Va = 5000 m / 3600 s = 1.39 m/s

(Va - Vb) 60 = 10

Vb = Va - .167 = 1.22 m/s

(Va - Vb) T = 4200 Π      where T is time for A to complete 1 more lap

.17 T = 4200 Π

T = 24700 Π  time for A to again catch B

N = 1.39 * 24700 Π / (4200 Π) = 8.2   laps

A will make 8 but not 9 rounds before catching B

6 0
2 years ago
An electric lightbulb in a lamp fixture is illuminating a small room. The system consists of the lightbulb, the lamp fixture, th
mixas84 [53]

The role of thermal energy is to balance the electrical energy lost from the light bulb.

<h3>Energy conservation</h3>

The law of energy conservation states that energy can neither be created nor destroyed but can be transformed from one form to another.

<h3>Thermal energy</h3>

This is a form of energy that occurs due to rise in temperature.

The role of thermal energy is to balance the electrical energy lost from the light bulb.

Learn more about conservation of energy here: brainly.com/question/166559

6 0
2 years ago
What is the change in velocity of a 15 kg object that experiences a 5 N force for 0.3 seconds?
alukav5142 [94]

Hello!

Δv = 0.1 m/s

Use the equation F = m · a to solve for the acceleration:

5 = 15 · a

a = 1/3

The equation to solve for acceleration can be rewritten to solve for the change in velocity:

Δv / t = a

Δv = at

We are given the acceleration and time, therefore:

Δv = (1/3)(0.3)

Δv = 0.1 m/s

3 0
3 years ago
How much power does it take to lift 250N,40m high in 2 seconds
Novosadov [1.4K]
P = \frac{F*D}{T}= \frac{250N*40 m}{2 s}=5000 W
7 0
3 years ago
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