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3 years ago

An eclipse of the moon is caused by the

1 answer:

6 0

An eclipse is a phenomenon of an astronomical object being obscured by something. In this case, it is the Moon that is being obscured from sunlight by Earth's shadow. Answer is D.

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HELP ASAP PLZ

vredina [299]

Answer:

Explanation:

the atomic number and the mass number must not change. so you're just looking for the particle that makes the numbers on both sides the same

7 0

3 years ago

Read 2 more answers

Current can flow through an electric circuit only when the switch is .

Alika [10]

Current can flow when the switch is closed

5 0

3 years ago

Read 2 more answers

I need help with this

Fed [463]

HEY THERE !!

It is called SUBLIMATION.

so the correct answer is (D).

3 0

3 years ago

Read 2 more answers

Problem 21-40a:

Greeley [361]

Answer:

Part a)

$\frac{F_e}{F_g} = 2.74 \times 10^{12}$

Part b)

$q = 3.37 \times 10^{-4} C$

Explanation:

As we know that electric force on electric charge is given as

$F = qE$

here we have

$q = 1.6 \times 10^{-19}C$

E = 153 N/C

now force is given as

$F = (1.6 \times 10^{-19})(153) = 2.45 \times 10^{-17} N$

Gravitational force on electric charge near surface of earth is given as

$F_g = mg$

$F_g = (9.1 \times 10^{-31})(9.81) = 8.93 \times 10^[-30} N$

now the ratio of two forces is given as

$\frac{F_e}{F_g} = \frac{2.45 \times 10^{-17}}{8.93 \times 10^{-30}}$

$\frac{F_e}{F_g} = 2.74 \times 10^{12}$

Part b)

Now the ball is balanced by the electric force and the force of gravity on it

so here we have

$F_g = qE$

$mg = qE$

$(5.25 \times 10^{-3})(9.81) = q(153)$

here we have

$q = 3.37 \times 10^{-4} C$

8 0

4 years ago

When compared to other types of waves, electromagnetic waves differ because they are

expeople1 [14]

They differ because they are transverse wave. That is their direction of travel is perpendicular to its vibrations.

7 0

3 years ago