3 years ago

How does friction affect moving objects?

Physics

1 answer:

Temka [501]3 years ago

6 0

Friction will slow down the moving object

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8TH GRADE SCIENCE I NEED NOW DO NOT SKIP

yan [13]

Explanation:

1. Force=mass*acceleration

acceleration=force/mass

=100/50

=2m/s^2

2. Gravitational force for downward acceleration= mg-ma=m(g-a) , since a is less than g,

So it will be= 50(9.8-2)

=50(7.8)= 390N

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3 years ago

Define the term “force”.

Aleonysh [2.5K]

Energy that is applied to an object.

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3 years ago

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Two long, straight wires both carry current to the right, are parallel, and are 25 cm apart. Wire one carries a current of 2.0 A

Artemon [7]

Answer:

x = 7.14 meters

Explanation:

It is given that,

Current in wire 1, $I_1=2\ A$

Current in wire 2, $I_2=5\ A$

Distance between parallel wires, r = 25 cm

Let at P point the net magnetic field equal to 0. The magnetic field at a point midway between the is given by :

$B=\dfrac{\mu_oI}{2\pi r}$

Let the distance is x from wire 1. So,

$\dfrac{I_1}{r}=\dfrac{I_2}{(0.25-r)}$

$\dfrac{2}{r}=\dfrac{5}{(25-r)}$

$x=\dfrac{50}{7}\ m$

x = 7.14 meters

So, the magnetic field will be 0 at a distance of 7.14 meters from wire 1. Hence, this is the required solution.

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3 years ago

Which unit would you use to express the height of your desk?

swat32

Height is the length by nature so i'll use meter to express it!

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3 years ago

Consider 2 cars traveling directly towards each other. Car A has twice the mass of Car B. In

galben [10]

Answer:

If Car A has half the mass of Car B, then it must have twice the velocity to come to a stop when colliding.

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3 years ago