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2 years ago

Which of the following produces a magnetic field?

Physics

2 answers:

antoniya [11.8K]2 years ago

4 0

Produces a magnetic field is a Motion of electrons

RideAnS [48]2 years ago

4 0

Motion of electric charges (current) produces a magnetic field by Amperes Law

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Given that the radius of the moon is roughly one-quarter that of the earth, find the mass of the moon in terms of the mass of th

MrRa [10]

The mass of the moon is six times lower in terms of the mass of the earth because of the its lower size and shape.

<h3>What is the mass of the moon and earth?</h3>

The mass of the moon is 7.34767309 × 1022 kilograms while on the other hand, the mass of the earth is 5.97219 × 1024 kilograms. This difference is due to the lower radius of the moon as compared to earth.

So we can conclude that the mass of the moon is six times lower in terms of the mass of the earth because of the its lower size and shape.

Learn more about radius here: brainly.com/question/12908707

4 0

1 year ago

You've recently read about a chemical laser that generates a 20.0-cm-diameter, 26.0 MW laser beam. One day, after physics class,

aksik [14]

Answer :

(a). The speed of the block is 0.395 m/s.

(b). No

Explanation :

Given that,

Diameter = 20.0 cm

Power = 26.0 MW

Mass = 110 kg

diameter = 20.0 cm

Distance = 100 m

We need to calculate the pressure due to laser

Using formula of pressure

$P_{r}=\dfrac{I}{c}$

$P_{r}=\dfrac{P}{Ac}Put the value into the formula[tex]P_{r}=\dfrac{26.0\times10^{6}}{\pi\times(10\times10^{-2})^2\times3\times10^{8}}$

$P_{r}=2.75\ N/m^2$

We need to calculate the force

Using formula of force

$F=P\times A$

$F=P\times \pi r^2$

Put the value into the formula

$F=2.75\times\pi (0.01)^2$

$F=0.086\ N$

We need to calculate the acceleration

Using formula of force

$F=ma$

Put the value into the formula

$0.086=110\times a$

$a=\dfrac{0.086}{110}$

$a=0.000781\ m/s^2$

$a=7.81\times10^{-4}\ m/s^2$

(a). We need to calculate speed of the block

Using equation of motion

$v^2=u^2+2ad$

Put the value into the formula

$v=\sqrt{2\times7.81\times10^{-4}\times100}$

$v=0.395\ m/s$

(b). No because the velocity is very less.

Hence, (a). The speed of the block is 0.395 m/s.

(b). No

8 0

2 years ago

A cannon ball launched horizontally with a speed of 20m/s and a baseball dropped off a cliff and it accelerates at a rate of 10m

miskamm [114]

If they both start from the same height, then they both hit the ground at the
same time. It makes no difference if their horizontal speeds aren't equal.
The cannon ball still accelerates downward at the same rate as the baseball.

8 0

2 years ago

A combination reaction is when two or more reactants __ to form one product

True [87]

Answer:

A combined reaction is when two or more reagents combine __ to form a product

Explanation:

A combination or synthesis reaction, consists of the formation of a substance from the reaction of two or more substances.

Example: A + B -> C

2Na + Cl2 ---> 2NaCl (sodium chloride formation reaction)

7 0

2 years ago

Most photographs will be made using a shutter speed of 1/60 or faster.

kari74 [83]

True

Most photographs will be made using a shutter speed of 1/60 or faster.

5 0

2 years ago

Read 2 more answers