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lara31 [8.8K]
3 years ago
10

Write a hypothesis for Part II of the lab, which is about the relationship described by F = ma. In the lab, you will use a toy c

ar and apply forces to it. Use the format of "if . . . then . . . because . . .” and be sure to answer the lesson question "How can Newton's laws be experimentally verified?” specific to Newton’s second law.
Physics
2 answers:
skelet666 [1.2K]3 years ago
7 0

Sample Response: If force is applied to a car, then its acceleration will change proportionally, as predicted by Newton’s second law, F = ma.

Temka [501]3 years ago
6 0

Answer:

F=ma is the relationship where, F is force, m is mass and a is acceleration.

Newton's second law states that  the unbalanced force applied to the object accelerates the object which is directly proportional to the force and inversely to the mass.

If we apply force to a toy car then It will accelerate.

This is how Newton's second law of motion is verified.

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Which of the following statements are true concerning the creation of magnetic fields?
Soloha48 [4]

Answer:

A moving electric charge creates a magnetic field at all points in the surrounding region.

An electric current in a conductor creates a magnetic field at all points in the surrounding region.

A permanent magnet creates a magnetic field at all points in the surrounding region.

Explanation:

Magnetic field can be produced by:

- moving charges (i.e. a moving electron, or a current in a conductor)

- A magnet

The strength of the magnetic field produced by a current-carrying wire is

B=\frac{\mu_0 I}{2\pi r}

where

I is the current

r is the distance from the wire

As we see from the formula, the magnetic field is produced at all points in the surrounding region, because B becomes zero only when r becomes infinite. The same is true for the magnetic field created by a single moving charge or by a magnet.

The following choices instead are not correct:

- A single stationary electric charge creates a magnetic field at all points in the surrounding region.

- A distribution of electric charges at rest creates a magnetic field at all points in the surrounding region.

Because they involve the presence of stationary charges, and stationary charges do not produce magnetic fields.

3 0
3 years ago
How long did it take beagle to sail from Tahiti back to Falmouth, England?
Radda [10]

Answer:

On 2 October 1836, the Beagle entered the English port of Falmouth after a voyage which had lasted for four years, nine months and five days.

5 0
3 years ago
Which of the following objects works by burning fuel to push hot air toward the ground and create thrust to use in lifting off?
olga_2 [115]
Rockets, space stations, space probe 
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3 years ago
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Why do moving back and forth, and moving in a circle look the same on a graph of position versus time?
Tomtit [17]

Answer:

  • <u>Because in both kind of motions, the position is periodically repeated. Both are simple harmonic motions.</u>

Explanation:

<em>Moving back and forth</em> means that the moving object goes through the same position every time a certain period of time elapses.

The same is true for the <em>circular motion</em>, every time the object completes a turn, the object is in the same position.

They are examples of simple harmonic motions. The time it takes the object to repeat a complete cycle is called period.

Therefore, in a grahp of position versus time, the curve that represents the position repeats itself every so often equal to one period, both for moving back and forth and for moving in a circle.

3 0
3 years ago
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AlladinOne [14]
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7 0
3 years ago
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