PHYSICS MIDDLE SCHOOL

If the mass of Mars is 0.11 ME (mass of Earth) and its radius is 0.53 RE (radius ofEarth), How much is the gravitational field g at the surface of Mars?
Given: ME=6.0x1024 kg and RE=6.4x106m

Answers

Answer 1

Answer:

Answer:

3.8 m/s²

Explanation:

g = GM / R²

g = G (0.11 ME) / (0.53 RE)²

g = 0.39 G ME / RE²

g = 0.39 (9.8 m/s²)

g = 3.8 m/s²

Answer 2

Answer:

Answer:

vote me brainliest! Please!

simple put is 3.8 m/s²

took it on edge 2020

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when an incandescent light bulb is turned on, its thin wire filament heats up quickly. as the temperature of this wire filament increases, its electrical resistance...

Answers

Well, we usually assume that the resistance of a circuit component
is constant and doesn't change. But the truth is that for anything
that conducts current, its resistance always increases somewhat
when it warms up.

For things like light bulbs, electric toasters, space heaters, electric
stove burners, the heat coils in a blow-dryer ... anything that's
designed to be really hot when it's doing its job ... the resistance
of those things increases significantly when they come up to their
operating temperatures.

Hello user!

here is it answer.....

Because the lamp filament is physically very small and dissipates a relatively large amount of power (say, 60W for a typical incandescent bulb), while the conductors which feed it are relatively large and of negligible resistance, so they dissipate very little power, for a relatively large conductor area. How hot a component gets from resistive heating is proportional to its power dissipation, and inversely proportional to its area/size.

Thus if you dissipate, say 60W of power in a tiny lamp filament, it will get hot enough to become (surprise !!) incandescent, while the conductors which supply it (which dissipate perhaps a fraction of a watt for many feet of conductor length) will experience no significant temperature rise.

In fact, applicable electrical codes mandate that circuit conductors be sized large enough and provided with appropriate overcurrent protection, so that no significant conductor heating can take place.

How many degrees in fahrenheit is 6.75 degrees celsius?

Answers

6.75 degrees C

is

44.15 degrees F :)

Is this statement an observation or an inference? It must be raining outside. Explain.

Answers

The word must means that it is an inference. If you removed that word it would be an observation as it would mean you're seeing it.
However must implies that you can't see it and you are inferring the fact it's raining from another source, example the sound on the window.

During the course of trajectory the horizontal component of the velocity is; A) constant
B) increasing
C) decreasing
D) negative

Answers

The horizontal component of the velocity remains constant in a trajectory course.

Answer: A

Explanation:

The trajectory path is formed due to the gravitational pull acting on the object thrown from some point either upward or downward.

As it is known that the velocity is divided into horizontal and vertical component, the vertical component of the velocity of the object thrown will be mainly influenced by the gravitational pull as it acting in vertical direction only.

So the vertical component of the object following a trajectory path will be changing at a rate of 9.8 m/s2 which is the acceleration due to gravity.

On the other hand, the horizontal component of the velocity will remain constant in order to maintain the law of conservation of energy.

im not 100 percent sure but i think its a

What determines the number of possible sublevels?A.
the principal energy level
B.
the shape of the orbital
C.
the energy of the orbital
D.
the ground state

Answers

Hello!

The answer is A. the principal energy level

Why?

The principal energy level or principal quantum number n, tell us about the position of an determined electron in the energy levels relative to the greater average distance of an electron from the nucleus, the larger the value of n and the higher its energy.

The principal energy levels contains n sublevels, $n^(2)$ orbitals and $2n^(2)$ electrons.

For example, the number 1, has one orbital which is contained in a energy sublevel, its called s orbital, and it's just an orbital with 2 electrons.

Have a nice day!

The answer for your question is A I agree with the other person

A piston above a liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external pressure on the upper surface of the liquid? A. 4.90 kPa B. 27.3 kPa C. 68.6 kPa D. 3.43 kPa