1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Pachacha [2.7K]
4 years ago
7

Which of the following can best be described as an element or compound

Physics
2 answers:
aliina [53]4 years ago
8 0

Answer:

C

Explanation:

Technically, you must chemically separate most mixtures. For example, if I were to mix some Nesquick with some milk, it would have to be evaporated by heat to separate the two (and even then, there would not be pretty much any of the nesquick afterwards).

Hope this kinda helps. Not an expert, but....yeah

Lynna [10]4 years ago
7 0

Answer:

A

Explanation:

because you cannot seperate the matter duhhh hahha

You might be interested in
Algunas fabricas de balones de fútbol ubicadas en la costa inflan los balones que van a ser vendiéndose las ciudades como pasto,
otez555 [7]

Answer:

balloon is rigid the amount of gas is constant inside the interior pressure of the balloon is constant and in these cities it becomes equal to or slightly higher than atmospheric pressure

Explanation:

Este ejercicio es referente a la mecánica de fluidos, usemos la expresión para la presión  

       P = ρ g h

En es el caso del balón  usemos la presión en la pared extrema, llamemos P la presión por el gas en el interior y P_ext la presión atmosférica del lugar

        cuando se llena el valor en una ciudad de baja altura la presión atmosférica es mas alta

          P_int1 < P_ext1

por lo cual la pared del balón no se mantiene rígida.

Cuando el balón es trasladado a una ciudad con mayor altura sobre el nivel del mar la presión exterior disminuye

       P_ext2 = ρ g h₂ < P_ext1

en promedio la presión disminuye con la altura  en 0,029 atm cada 250 m

por lo tanto como la cantidad de gas es constante en el interior la presión interior del globo es constante y en esta ciudades se hace igual o un poco mayor que la presión atmosférica, en consecuencia la pared del globo esta rígida

        P_int2 >P_ext2

Traslate

This exercise is related to fluid mechanics, let's use the expression for pressure

       P = ρ g h

In the case of the balloon, let's use the pressure on the extreme wall, let's call P the pressure for the gas inside and P_ext the atmospheric pressure of the place

        when the value is filled in a low-lying city the atmospheric pressure is higher

          P_int1 <P_ext1

therefore the wall of the ball does not remain rigid.

When the ball is transferred to a city with higher altitude above sea level, the external pressure decreases

       P_ext2 = ρ g h <P_ext1

on average the pressure decreases with height by 0.029 atm every 250 m

therefore as balloon is rigid the amount of gas is constant inside the interior pressure of the balloon is constant and in these cities it becomes equal to or slightly higher than atmospheric pressure, therefore the wall of the

        Pint 2> Pe

8 0
3 years ago
Which of these experiments would make use of qualitative data?
Artyom0805 [142]
The answer is A study of different surfaces to compare ability to repel water. Hope this helps!
8 0
4 years ago
Read 2 more answers
Please help will give branliest
USPshnik [31]

Nabr is the answer bcoz in a chemical reaction reactants react to form new substances and according to your options NaBr should be the answer

6 0
3 years ago
A 1180kg car is moving at a speed of 85.5 km/h. Find the force needed to bring the car to rest in a distance of 300m
yarga [219]

Answer:

1110 N

Explanation:

First, find the acceleration.

Given:

Δx = 300 m

v₀ = 85.5 km/h = 23.75 m/s

v = 0 m/s

Find: a

v² = v₀² + 2aΔx

(0 m/s)² = (23.75 m/s)² + 2a (300 m)

a = -0.94 m/s²

Find the force:

F = ma

F = (1180 kg) (-0.94 m/s²)

F = -1110 N

The magnitude of the force is 1110 N.

3 0
3 years ago
Solar panels allow us to harness ___________ energy and convert it to __________ energy to heat water.
vichka [17]
Solar energy
thernal energy
3 0
4 years ago
Other questions:
  • Why can scientists ignore the forces of attraction between particles in a gas under ordinary conditions? They are too weak to ha
    14·2 answers
  • A short-wave radio antenna is supported by two guy wires, 150 ft and 170 ft long. Each wire is attached to the top of the antenn
    9·1 answer
  • You move 25N object 5 meters. how much work did you do
    12·1 answer
  • Pls help
    5·1 answer
  • An astronaut in an orbiting spacecraft attaches a mass m to a string and whirls it around in uniform circular motion. The radius
    13·1 answer
  • (blank) is the thermal energy that flows from one substance to another when the substances differ in temperature
    14·2 answers
  • Choose what colors are absorbed when white light hits a red apple. (Pick all that apply.)
    6·1 answer
  • In the year 1178. five monks at Canterbury Cathedral in England observed what appeared to be an asteroid colliding with the moon
    14·1 answer
  • You run 3 miles in 15 minutes. What is your speed?
    13·1 answer
  • C = speed of light = 3.00 × 108 m/s
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!