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Elanso [62]
2 years ago
5

If the car has a mass of 1200 kg, how much force must the engine provide?

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

Force in Newtons =

(1200)•(the rate of acceleration you want)

It depends on how fast you want to accelerate.

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A vase falls from a windowsill 50.0 m above the sidewalk. How fast is the base moving when it hits the ground?
scZoUnD [109]

Answer:

The answer is A sorry if i'm wrong

Explanation:

6 0
3 years ago
A wire of radius R has a current I uniformly distributed across its cross-sectional area. Ampere's law is used with a concentric
MrMuchimi

Answer:

Please refer to the figure.

Explanation:

The crucial point here is to calculate the enclosed current. If the current I is flowing through the whole cross-sectional area of the wire, the current density is

J = \frac{I}{\pi R^2}

The current density is constant for different parts of the wire. This idea is similar to that of the density of a glass of water is equal to the density of a whole bucket of water.

So,

J = \frac{I}{\pi R^2} = \frac{I_{enc}}{\pi r^2}\\I_{enc} = \frac{Ir^2}{R^2}

This enclosed current is now to be used in Ampere’s Law.

\mu_o I_{enc} = \int {B} \, dl

Here, \int \, dl represents the circular path of radius r. So we can replace the integral with the circumference of the path, 2\pi r.

As a result, the magnetic field is

B = \frac{\mu_0}{2\pi}\frac{Ir}{R^2}

5 0
3 years ago
How do matter and energy interact to produce weather patterns
nadezda [96]
Weather is caused by different levels of humidity and the difference in the temperature of air which causes wind patterns. Energy from the sun evaporates the water on land. Air also heats up which brings up the water vapor to the atmosphere. This increases the humidity and the chance of rain. When hot is found near the land, this will create a high pressure which will prevent the formation of clouds and produce a fair weather.
7 0
3 years ago
An electric circuit consists of a variable resistor connected to a source of constant potential difference. If the resistance of
yulyashka [42]
Then nothing will happen
5 0
3 years ago
A trolley going down an inclined plane has an acceleration of 2cm/s^2 What will be its velocity
Snowcat [4.5K]

Answer:

V_{f} = 6 cm/s

Explanation:

<u><em>Given:</em></u>

Acceleration = a = 2 cm/s²

Time = t = 3s

Initial Velocity = V_{i} = 0 cm/s

<u><em>Required:</em></u>

Velocity = V_{f} = ?

<u><em>Formula:</em></u>

a = \frac{V_{f}-V_{i}}{t}

<u><em>Solution:</em></u>

2 = \frac{V_{f}-0}{3}

=> V_{f} = 2*3

=> V_{f} = 6 cm/s

5 0
3 years ago
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