1) (c)Describe how you would use the apparatus and what readings would you take?​

I need the answer only for the '' c'' part

Answer:

The only liquid elements at standard temperature and pressure are bromine (Br) and mercury (Hg).

Answer:A

Explanation:glass window allow light in but trap the heat inside

Answer:

B and C

Explanation:

The given symbol  [tex]_{-1}^{0}e[/tex] denotes an electron. An electrons has neglecting mass and has one unit of negative charge. Thus, option A is correct.

An electron is a subatomic particle. the other subatomic particles that constitutes an atom are neutrons and  protons. neutrons and protons are located inside the nucleus and electrons are revolving around the nucleus through circular paths of fixed energies.

Electrons are having negative charge and protons are positively charged particles. For an atom the number of protons and electrons are the same. Therefore, an element in its atomic state is neutral.

Neutrons are neutral. However both neutrons and protons are having significant mass compared to an electrons. Hence, the representation of electrons include zero mass and -1 charge. Hence, option A is correct.

To find more on electrons, refer here:

https://brainly.com/question/1255220

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Answer:

The greater the mass of a substance the more thermal energy. The thermal energy of a substance depends on the temperature and mass of that substance.

Explanation:

Answer:

Explanation:

If two objects have the same mass, the object with the higher temperature has greater thermal energy. Temperature affects thermal energy, but temperature isn't the same thing as thermal energy. That's because an object's mass also affects its thermal energy.

Answer:

Cools ; size

Explanation:

The rate at which magma cools determines the size of the crystals in the new rock. Igneous rocks are formed from the cooling and solidification of molten magma which finds its way to the surface or depth of very low pressure beneath the surface. This place or depth of cooling of magma affects the cooling rate and hence the size of the crystals formed. Igneous rocks formed at depths below the surface have more time to cool and allows more time for Crystal growth and hence produce coarse grained crystal grains called Intrusive igneous rocks which have significantly larger crystals than those formed on the surface which cools rapidly and allowing very little time for crystal growth giving rise to the formation of fine grained crystals and are called extrusive igneous rocks.

Answer:

455,000 Pa

Explanation:

PV = nRT

If n is constant:

PV / T = PV / T

(101,325 Pa) (718 mL) / (273 K) = P (175 mL) / (26 + 273) K

P = 455,000 Pa

Answer:

It remains the same.

Explanation:

During physical change, the mass, number of atoms and number of molecules will remain the same.

Answer: A

Explanation:

After a chemical change, the total number of atoms of each elements stays the same.

According to the law of conservation of matter "During a chemical reaction, matter is neither created nor destroyed".

This law provides us with a good view into what happens to atoms after a chemical change.

Simply, since we know that atoms are not created nor destroyed, that means their number cannot increase nor decrease.

The simply remain the same.

This is why every chemical equation must be balanced.

Answer:

Resistance can be defined as the potential difference between two points in a circuit, while voltage is the amount of electrons moving through a point in a circuit every second.

Explanation:

Answer:

1.5 u

Explanation:

The range equation is:

R = u² sin(2θ) / g

When u = v, R = 2.25 R.

2.25 R = v² sin(2θ) / g

2.25 u² sin(2θ) / g = v² sin(2θ) / g

2.25 u² = v²

1.5 u = v

Answer: 2858.7726N

Explanation:

Given that :

Charge 1 (q1) = -0.00125 C

Charge 2 (q2) = +0.00333 C

Distance (r) = 3.62 m

According to columb's Law: The magnitude of the force between any two charged objects :

Fe = (Kq1q2) / r^2

Coloumb's constant(k) = 9×10^9 Nm^2/C^2

Fe = (9×10^9 * 0.00125 * 0.00333) / 3.62^2

Fe = (0.0000374625 * 10^9) / 13.1044

Fe = 37462.5 / 13.1044

Fe = 2858.7726N

Answer:

2858.7726 N

Explanation:

acellus

Answer: Mechanical waves

Explanation:

Mechanical waves require a medium in order to transport their energy from one location to another. A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum.

Answer:

Mechanical waves

Explanation:

edge 22'

Answer:

C :)

Explanation:

Angle of incidence always equals angle of reflection. Think of a tennis ball being hit into a wall. The ball will bounce off at the same angle that it approached with. The angles mentioned are formed through the line called the "normal", which is the line perpendicular to the surface.

Answer:

The ridge subducts and moves the rock

Explanation:

You got the right answer

Answer:

A. 400 J

Explanation:

Because the process is isochoric, no volume change, so no work, so none of the energy is lost or converted. In other words, the system will gain and hold onto all of the J of heat put into it, which was 400J

Answer:

4

Explanation:

The number 4 that is infront of the CHA(4CHA) means to say that there are 4C 4H and 4A

Tip:the number infront of a equation is call the coefficient

Answer:

-16°C

Explanation:

PV = nRT

V and n are constant.

P / T = P / T

(2 atm + 1 atm) / (266 K) = (1.9 atm + 1 atm) / T

T = 257.1 K

T = -16°C

Answer:

A. -50 m/s

Explanation:

Given

Velocity of Chairlift = +15m/s

Velocity of Skier = -35m/s

Required

Determine the velocity of the skier relative to the chairlift

Basically, relative velocity is the difference between the two velocities;

Having said that;

Relative velocity of the skier relative to the chairlift = Velocity of the Skier - Velocity of the Chairlift

Relative velocity of the skier relative to the chairlift = -35m/s - (+15m/s)

Open bracket

Relative velocity of the skier relative to the chairlift = -35m/s - 15m/s

Relative velocity of the skier relative to the chairlift = -50