An object has a mass of 13.5 kilograms. What force is required to accelerate it to a rate of 9.5 m/s2?

Answers

Answer 1

Answer: Force can be expressed as the product of mass and acceleration. Mathematically, that's F = m(a). Plugging the given into the equation, we have F = (13.5 kg)(9.5 m/s²) = 128.3 kg.m/s² or 128.3 N.

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At a given location in space, the magnetic field in an electromagnetic wave is increasing. How is the electric field changing at that same location? a. The electric field is increasing.
b. The electric field is decreasing.
c. The electric field is not changing.

Answers

Answer:

Option a) is correct

Explanation:

In the given question option a) ( i.e the electric field is increasing ) is correct.

The above option is correct because the electric field and the electromagnetic wave both are in the same phase of the EM wave. Thus, the electromagnetic wave and the electric field are directly proportional to each other.

Final answer:

In an electromagnetic wave, the electric and magnetic fields are linked, oscillating in phase. Therefore, when the magnetic field is increasing, the electric field is also increasing.

Explanation:

In an electromagnetic wave, the electric field and the magnetic field are perpendicular to each other and they oscillate in phase. This means when the magnetic field is increasing, the electric field is also increasing, and vice versa. So, the correct answer is option a. The electric field is increasing. It's important to keep this correlation in mind while studying electromagnetic waves, as these oscillations and their interplay are fundamental to how these waves propagate through space.

Learn more about Electromagnetic Wave here:

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When gasoline is burned in a car engine,_____ energy is converted into _____ energy.

Answers

Chemical Energy is converted into Mechanical Energy.

When gasoline is burned in a car engine, chemical energy is converted into mechanical energy.

Answer: D

Explanation: When gasoline is burned in a car engine,chemical energy is converted into mechanical energy.

Could you give me 4 examples of acceleration??

Answers

Certainly.

1). A driver presses the gas and the car speeds up.

2). A driver presses the brake and the car slows down.

3). A driver turns the steering wheel slightly. The car's speed doesn't change
as it goes around the curve.

4). A stone is tossed into the air. Gravity accelerates it from the moment it
leaves the thrower's hand until it hits the ground.

5). A new TV satellite is successfully launched and placed in a perfect circular
orbit around the Earth. The satellite's motion is accelerated forever, 24/7/365 .

"Acceleration" means any change in the speed or direction of motion. Any
object that's not moving at constant speed in a straight line is accelerated.

What distinguishes a tornado watch from a tornado warning?

Answers

"Watch" . . . atmospheric conditions exist that could
produce tornados, but none have been seen yet.

"Warning" . . . tornados have formed and have been seen.

Two objects move toward each other because of gravitational attraction. As the objects get closer and closer, the force between them _____. A. remains constant B. decreases C. increases

Answers

As 2 objects get closer and closer due to the gravitational attraction, the force between them C. increases.

Two objects move toward each other because of gravitational attraction. To understand the gravitational force, we need to consider Newton's law of universal gravitation, which states that every particle attracts every other particle in the universe with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Mathematically,

$F = G (m_1m_2)/(r^(2) )$

where,

F: gravitational force
G: gravitational constant
m₁: mass of object 1
m₂: mass of object 2
r: distance between centers of the masses

As the objects get closer, the distance between them decreases, and consequently the gravitational force increases.

As 2 objects get closer and closer due to the gravitational attraction, the force between them C. increases.

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Answer:

C. increases

Explanation:

Law of Universal Gravitation

This law establishes that bodies, by simply having mass, experience a force of attraction to other bodies with mass, called gravitational force or gravitational force.

The gravitational force between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance that separates them.

$F_(g) =G((M*m)/(r^(2) ) )$ Formula (1)

where:

G is the universal gravitation constant, G = 6.67 · 10-11 N · m² / kg²

M and m are the masses of the bodies that interact (kg)

r is the distance that separates them. (m)

Problem development

As objects get closer and closer the distance (r) that separates them decreases and because M, m and G remain constant, in formula (1):

$F_(g) =G((M*m)/(r^(2) ) )$

, if r decreases then Fg increases.

A compass needle normally points toward Earth’s magnetic pole, which is near the North Pole. Which best explains why the needle moves away from the pole when it comes close to a current-carrying wire?-Current within the wire weakens the magnetic force of the pole.
-Magnetism surrounding the wire weakens the magnetic force of the pole.
-Magnetism surrounding the wire draws the needle toward the wire.

Answers

Answer

-Magnetism surrounding the wire draws the needle toward the wire.

Explanation
When a compass needle is placed near a conductor carrying current, it deflects to one side.
This happens because the magnetic field due to the needle interact with electric fields around the conductor carrying carrying current resulting to a force that makes the needle to deflet.
The best answer that suits the question asked is -Magnetism surrounding the wire draws the needle toward the wire.

A compass needle normally points toward Earth’s magnetic pole, which is near the North Pole. The best explanation why the needle moves away from the pole when it comes close to a current-carrying wire is Magnetism surrounding the wire draws the needle toward the wire.

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