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4 years ago

An object moving at 38m/s takes 5s to come to a stop. what is the objects acceleration?

Physics

1 answer:

Lelechka [254]4 years ago

8 0

Acceleration = v /t
a = 38 / 5 m/s²
a = 7.6 m/s²

In short, Your Answer would be 7.6 m/s²

Hope this helps!

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yami pours powdered cocoa mix into milk and stirs it. then she microwaves the mixture for three minutes. when she takes the cup

MrRa [10]

Convection can best be observed as she blows the warm steam air that rises.

As the warm steam rises, she forces displaces it with cool air from her mouth. Because the warm steam is less dense it rises and because the cool air is more dense, it displaces the warm air.

This scenario is an example of convection.

6 0

3 years ago

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An object with charge -4.0μC is placed between a positively charged object to the

elena-s [515]

The net force on the -4.0μC object as a result of this net field will be -10.4 N.

<h3>What is the charge?</h3>

The matter has an electric charge when it is exposed to an electromagnetic field is known as a charge.

The electric field intensity is found as the force per unit charge.

Electric field intensity on the positive charge:

$\rm E_1 = \frac{F_1}{Q} \\\\\ \rm 1.2 N/C = \frac{F_1}{ -4.0 \mu C} \\\\ F_1 = - 4.8 \ N$

Electric field intensity on the negative charge:

$\rm E_2 = \frac{F_2}{Q} \\\\\ \rm 1.4 \ N/C = \frac{F_1}{ -4.0 \mu C} \\\\ F_2 = - 5.6 \ N$

The net charge is the algebraic sum of the two charges;

$\rm F_{net}=F_1+F_2 \\\\ F_{net}= -4.8 -5.6 \\\\ F_{net}=-10.4 \ N$

Hence, as a result of this net field, the net force on the -4.0C object will be -10.4 N.

To learn more about the charge refer to the link;

brainly.com/question/24391667

#SPJ1

4 0

2 years ago

What are the two factors that determine the amount of gravitational force between two objects?

melisa1 [442]

Answer:

The mass of the objects

Distance between the objects

Explanation:

The two factors that determines the amount of gravitational force between two objects is the mass of the objects and the distance between them.

Gravitational force of attraction is directly proportional to the product of the masses of the two objects and inversely proportional to the square of the distance between them. This is the postulate of the newton's law of universal gravitation.

Mathematically:

F = $\frac{Gm_{1}m_{2} }{r^{2} }$

m is the mass

r is the distance

G is the universal gravitation constant

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3 years ago

A 30⁰ 5.2 km 3.7 km FIGURE 1 40⁰ B x FIGURE 1 shows two displacement vector A and B. Determine the magnitude and direction of th

Alika [10]

The resulatant displacement will be 8.60m

What is displacement?

Displacement is the shortest path covered by an individual.

We have given the distance 5.2km and 3.7Km.

The resultant will be given in the photo

to learn more about displacement click brainly.com/question/13413762

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2 years ago

The synthesis of nitrogen trihydride from nitrogen gas and hydrogen gas is shown by which balanced chemical equation?

Strike441 [17]

Answer:

Option B. N2(g) + 3H2(g) → 2NH3(g)

Explanation:

When nitrogen react with hydrogen, they form a product as shown below:

N2+ H2 → NH3

We need to balance the equation. This is illustrated below:

There are 2 atoms of nitrogen on the left side and 1 atom on the right side. To balance it, put 2 in front of NH3 as shown below:

N2+ H2 → 2NH3

Now, There are a total of 6 atoms of Hydrogen on the right side and 2 atoms on the left side side. This can be balanced by putting 3 in front of H2 as shown below:

N2+ 3H2 → 2NH3

Now we see clearly that the equation is balanced as we have equal numbers of atoms of N and H on both sides of the equation

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3 years ago

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