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4 years ago

HELP ASAP!! WILL MARK BRAINLIEST

Physics

2 answers:

Kitty [74]4 years ago

8 0

Answer:

Explanation:

The magnet can always attract other things.

vovikov84 [41]4 years ago

7 0

Answer:

A is right

Explanation:

If you can try this experiment that if you place a magnet to any other iron, steel just like paper clip the paper clip will came close to the magnet and finally it will stick to it and the nail will not even dare to came close to the

paper clip or the paper clip will never dare to came close to the nail

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You measure an electric field of 1.36×106 N/C at a distance of 0.158 m from a point charge. There is no other source of electric

marysya [2.9K]

Answer:

The Electric flux will be $0.42\times10^6\ \rm N.m^2/C$

Explanation:

Given

Strength of the Electric Field at a distance of 0.158 m from the point charge is

$E=1.36\times10^6\ \rm N/C$

We know that the flux of the Electric Field can be calculated by using Gauss Law which is given by

$\int E.dA=\dfrac{q_{in}}{\epsilon_0}\\$

Let consider a sphere of radius 0.158 m as Gaussian Surface at a distance of 0.158 m from the point charge and Let $\phi$ be the flux of the Electric Field coming out\passing through it which is given by

$\phi=\int E.dA=1.36\times10^6 \times4\pi \times 0.158^2\\\\=0.42\times10^6\ \rm N.m^2/C$

It can be observed that same amount of flux which is passing through the Gaussian sphere of radius 0.158 is also passing through the Gaussian sphere of radius 0.142 m at a distance of 0.142 m from its centre.

Also it can be observed that the charge inside the two Gaussian Sphere mentioned have same value so the Flux of electric field through them will also be same.

So the electric flux through the surface of sphere that has given charge at its centre and that has radius 0.142 m is $0.42\times10^6\ \rm N.m^2/C$

8 0

3 years ago

Look at the attached photo:

pshichka [43]

Answer:

C) Mass of the ball

Explanation:

Independent variable is the variable the researcher changes.

Since Martin is testing the mass of the ball, he'll be using different balls and that is the only thing he changes.

The distance traveled by the ball is the dependent variable since it depends on the mass of the ball.

The height and length of the ramp are the constant variables since that's the only ones that remain the same throughout this experiment.

7 0

3 years ago

The diagrams above were used to illustrate the arrangement of the particles of a substance in three different states of matter.

7nadin3 [17]

The particles in diagram 3 move fast enough to break away from each other.

3 0

3 years ago

I will mark brainlist

sp2606 [1]

Answer:

Height = 2 * Amplitude

4 cm

Explanation:

5 0

3 years ago

How much does the speed of a car increase if it accelerates

Nata [24]

Answer:

12.5 m/s

Explanation:

a = Δv / Δt

2.5 m/s² = Δv / 5 s

Δv = 12.5 m/s

4 0

3 years ago