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Butoxors [25]
2 years ago
15

During a field experiment about speed, a scientist created the chart above. The chart shows distance and time measurements for a

racing car on the straight section of a race track. What is the racing car's speed?

Physics
1 answer:
BaLLatris [955]2 years ago
6 0

Answer:

yes

Explanation:

its not a good thing for the rest of your life but you have a PS4

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If the amplitude of a wave is increased the frequency of the wave will
Travka [436]

Answer:

Remain the same

Explanation:

There is no relationship between amplitude frequency.

3 0
3 years ago
Define pressure snd state its SI units to​
Sophie [7]

Answer:

Pressure (P) is the amount of force applied perpendicular to the surface of an object per unit area. The SI unit of pressure is the pascal (Pa), which is equivalent to N/m^{2} (newtons per meter squared).

6 0
3 years ago
Which item is necessary to make an electromagnet? Question 4 options: Render of a wooden cube with sharp edges, coordinating pat
BlackZzzverrR [31]

The electromagnet is a device that requires conducting wires wrapped around the iron core.

For making an electromagnet, the most necessary item is a copper wire.

What is an Electromagnet?

An electromagnet is a device that has conducting wires wrapped around an iron core. When electricity is passed through the wires, a magnetic field is generated. The setup acts as a strong magnet.

In order to make an electromagnet, a current-carrying wire is needed to wrap around a magnetic material. The current-carrying wires will play the role of conducting wires and the conducting wires are necessary to make an electromagnet. These wires can be made of copper.

Thus, we can conclude that for making an electromagnet, the most necessary item is a copper wire.

Learn more about the electromagnet here:

brainly.com/question/10060657

4 0
2 years ago
How much kinetic energy does a roller coaster have if its mass is 3000 kg and is moving at 30 m/s
Jobisdone [24]
The Kinetic energy of an object is given by:
E_k= \frac{1}{2}mv^2

Where m is the mass of the object (kg) and v is the velocity of the object (ms-1)

Substituting in:
E_k= \frac{1}{2}*3000*30^2 = 1350000J
Therefore the Kinetic energy of the object is 1.35MJ

3 0
3 years ago
01
klasskru [66]

The statement which describes how a machine can help make work easier is that It can put out more force than the input force by decreasing the distance over which force is applied, therefore the correct option is option A.

<h3>What is work done?</h3>

The total amount of energy transferred when a force is applied to move an object through some distance

The work done is the multiplication of applied force with displacement.

Work Done = Force * Displacement

As work done depends both on the force as well as the displacement force and be reduced by reducing the displacement if the same amount of work is performed by the machine.

The correct answer is option A since the statement that describes how a machine might assist in making work easier says that it can put out greater force than the input force by reducing the distance over which force is exerted.

Learn more about work done from here

brainly.com/question/13662169

#SPJ1

5 0
2 years ago
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