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4 years ago

Compare lunar and solar eclipses and answer the following questions:

Physics

1 answer:

xeze [42]4 years ago

3 0

So lunar eclips earth between sun and moon
Solar eclips moon between sun and earth.
About the 3th.. im not sure, it depends on if you meen a total solar eclips or not... i think total is more rare then a lunar eclipse..

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At table tennis ball has a positive charge of 4.50 × 10-8 coulombs. It experiences a force of 2.72 × 10-3 newtons due to an elec

kari74 [83]

The answer is 6.04 × 10^4 N/C.
Formula for the strength of the electric field is:
E = F/q
E = 2.72 × 10^-3 N/4.50 × 10^-8 C
E = 0.60444 × 10^5 N/C
E = 6.04 × 10^4 N/C

4 0

4 years ago

Read 2 more answers

A package is dropped from the height of 100 m and falls freely. How fast will the package be traveling when it hits the ground?

ki77a [65]

Answer:

The package will be traveling at 44.3 m/s when it hits the ground

Explanation:

Free Fall Motion

A free-falling object falls under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. Free-falling objects do not encounter air resistance.

If an object is dropped from rest in a free-falling motion, it falls with a constant acceleration called the acceleration of gravity, which value is $g = 9.8 m/s^2$ .

The final velocity of a free-falling object after a time t is given by:

vf=g.t

The distance traveled by a dropped object is:

$\displaystyle y=\frac{gt^2}{2}$

If we know the height h from which the object was dropped, we can find the time it takes fo hit the ground:

$\displaystyle t=\sqrt{\frac{2h}{g}}$

The package was dropped from h=100 m, thus the time taken to reach the ground is:

$\displaystyle t=\sqrt{\frac{2(100)}{9.8}}$

$t = 4.52~s$

The final speed is now calculated:

$vf=9.8*4.52$

$vf=44.3~m/s$

The package will be traveling at 44.3 m/s when it hits the ground

7 0

3 years ago

A client has developed dystrophic calcification as a result of macroscopic deposition of calcium salts. The tissue that would be

Komok [63]

Answer:

Tissues that are damaged or injured.

Explanation:

Dystrophic calcification involves the deposition of calcium in soft tissues despite no disturbance in the calcium metabolism, and this is often seen at damaged tissues.

Examples of areas in the body where dystrophic calcification can occur include atherosclerotic plaques and damaged heart valves.

4 0

3 years ago

Explain why atmospheric pressure changes as atmospheric depth changes.

brilliants [131]

The lower you go in relation to the top of the atmosphere the larger the column of air is that is pressing down on you.

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3 years ago

What are the energy transfers in a torch?

lapo4ka [179]

Explanation:

The battery is a store of internal energy (shown as chemical energy). The energy is transferred through the wires to the lamp, which then transfers the energy to the surroundings as light. These are the useful energy transfers - we use electric lamps to light up our rooms.

6 0

3 years ago