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3 years ago

The best ways to determine the safest driving speed are to 1) know the speed limit, and 2) ________.

1 answer:

7 0

The best ways to determine the safest driving speed are to 1) know the speed limit, and 2) maintain a safe following distance. The safe following distance is to be enough distanced form the vehicle in front of you. But how much is enough?
A driver should ideally stay at least two seconds behind any vehicle that is directly in front of his or her vehicle.

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Why is electric magnet a temporary magnet

PtichkaEL [24]

The electric magnet (Electromagnetic) is temporary because you can turn it on and off. When it's power source is gone, the magnet becomes useless. Usually it's power source is a battery, but it could be solar with a switch. Hope this helps. Please give me brainliest is this helps you.

6 0

3 years ago

What is the magnitude of electric field between 2 charged plates that are separated by a distance of 2.4cm, if the voltage acros

Radda [10]

Answer:

V = E * d

E = (200 J/C) / .024 m = 8330 J / C-m

1/2 m v^2 = V q potential energy of electron

v^2 = 2 * 200 J/C * 1.6E-19 C / 9.11 E-31 kg

v^2 = 400 * 1.6E-19 / 9.11 E-31 N-m / kg

v = 8.4E6 m/s

7 0

2 years ago

You can use a table or a graph to ___________Your findings

777dan777 [17]

To present your findings/data

5 0

3 years ago

EXPERTS/ACE and people that wanna help 4 sure only!

mario62 [17]

That first one you have selected (3,-3) works in both equations so it's correct.
good job.

you can do this guess and test method with multiple choice answers. If it works in both equations it is the solution. Otherwise use substitution or elimination to combine the two into one equation in only one variable. Then you can solve for the one variable first and use it to solve for the other.

3 0

3 years ago

Please help

kodGreya [7K]

This question involves the concept of Newton's Second Law of Motion.

a) The acceleration is "1 m/s²".

b) The acceleration is "1.5 m/s²".

c) The amount of force needed is "100 N".

d) The force needed is "187.5 N".

e) The force needed is "280 N".

<h3>NEWTON'S SECOND LAW OF MOTION:</h3>

According to Newton's Second Law of motion whenever an unbalanced force is applied on an object, it produces an acceleration in the object in the direction of the force itself.

Mathematically,

$F = ma$

where,

F = Applied Force
m = mass of the object
a = acceleration

Here,

F = 100 N

m = 100 kg

a = ?

Therefore,

$a=\frac{F}{m}=\frac{100\ N}{100\ kg}$

a = 1 m/s²

Here,

F = 60 N

m = 40 kg

a = ?

Therefore,

$a=\frac{F}{m}=\frac{60\ N}{40\ kg}$

a = 1.5 m/s²

Here,

F = ?
m = 200 kg

a = 0.5 m/s²

Therefore,

$F=ma = (200\ kg)(0.5\ m/s^2)$

a = 100 N

Here,

F = ?
m = 250 kg

a = 0.75 m/s²

Therefore,

$F=ma = (250\ kg)(0.75\ m/s^2)$

a = 187.5 N

Here,

F = ?
m = 140 kg

a = 2 m/s²

Therefore,

$F=ma = (140\ kg)(2\ m/s^2)$

a = 280 N

Learn more about Newton's Second Law of motion here:

brainly.com/question/13678295

4 0

3 years ago