All categories

2 years ago

Which two variables must be kept constant during this experiment?

Physics

1 answer:

zloy xaker [14]2 years ago

6 0

The number of molecules and the temperature must be kept constant.

Boyle's law is a gas law that states that a gas's pushing force (when it is of a certain mass and maintained at a constant temperature) is in direct opposition to the volume that it occupies. As a result, as long as the temperature and volume of the gas are maintained constant, the pressing factor and volume of the gas are incongruously comparable to one another.

V ∝ 1/P

V = K/P

PV = K

Therefore, the temperature will be the constant variable in Boyle's law. Even though it is the only constant factor, volume, temperature, and pressing factor are all in direct opposition to one another.

Learn more about Boyles law here:

brainly.com/question/26040104

#SPJ9

You might be interested in

Why is the mass of an atom's electrons not included in the atom's mass number?

Katen [24]

Answer: A: the electrons move so fast that their mass cannot be measured

Explanation: because they are so fast scientist and other people cannot measure them

8 0

3 years ago

A tank contains 0.568 mol of molecular nitrogen (N2). Determine the mass (in grams) of nitrogen that must be removed from the ta

Marizza181 [45]

Answer:

$\Delta M = 7.812 gm$

Explanation:

we know that for ideal gag we have

pV =nRT

Since volume, gas constant R and T are constant, so we have

$\frac{p}{n] = constant$

$\frac{44.7}{0.568} =\frac{22.8}{n}$

n = 0.289 mole

hence mass removed $\Delta M =( 0.568 - 0.289)*( molecular\ weight\ of \ nitrogen)$

$\Delta M = (0.568 - 0.289) *28 gm$

$\Delta M = 7.812 gm$

8 0

4 years ago

When you used the energy in our body to pull the rubber band, it was transformed into elastic potential energy. We know that ene

GuDViN [60]

Answer:

Converted to heat energy

Explanation:

Some of the elastic potential energy is transformed into heat energy. When we stretch a rubber band, it is often observed that the rubber becomes warmer after the stretch and even during the stretch.

Some energy in the band initially at rest will be converted into elastic potential energy and heat energy as it is stretched .

The heat energy is not usually accounted for since the major concern most times is the elastic energy.
In this process, heat energy becomes a waste energy.
By deducing the efficiency, we would find that this transformation is not efficient as predicted by one of the laws of thermodynamics.

3 0

4 years ago

A golfer gives a ball a maximum initial speed of 51.5 m/s. how far does it go

nata0808 [166]

<u>Answer:</u>

Golf ball will go a maximum of 270.36 meter.

<u>Explanation:</u>

Projectile motion has two types of motion Horizontal and Vertical motion.

Vertical motion:

We have equation of motion, v = u + at, where v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Considering upward vertical motion of projectile.

In this case, Initial velocity = vertical component of velocity = u sin θ, acceleration = acceleration due to gravity = -g $m/s^2$ and final velocity = 0 m/s.

0 = u sin θ - gt

t = u sin θ/g

Total time for vertical motion is two times time taken for upward vertical motion of projectile.

So total travel time of projectile = 2u sin θ/g

Horizontal motion:

We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.

In this case Initial velocity = horizontal component of velocity = u cos θ, acceleration = 0 $m/s^2$ and time taken = 2u sin θ /g

So range of projectile, $R=ucos\theta*\frac{2u sin\theta}{g} = \frac{u^2sin2\theta}{g}$

Now in the given problem

A golfer gives a ball a maximum initial speed of 51.5 m/s. how far does it go

u = 51.5 m/s, for maximum range θ = 45⁰

So maximum distance reached = $\frac{51.5^2sin(2*45)}{9.81}=270.36 meter$

So it will go a maximum of 270.36 meter.

5 0

4 years ago

The speed of sound through glass is 16344 km/hr. What is the wavelength of a sound wave of frequency 824 Hz in glass

SIZIF [17.4K]

Answer:

Which statements describe the movement of ocean currents around the globe? check all that apply. strong winds force warm water to sink to the ocean floor. the coriolis effect causes warm and cold water to mix. cool dense water sinks to the ocean floor. warm water replaces cool surface water. wind blowing parallel to the shore causes upwelling of cool water.

Explanation: i think this might help

8 0

3 years ago

Read 2 more answers

Which two variables must be kept constant during this experiment?​

Which two variables must be kept constant during this experiment?