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
Ainat [17]
3 years ago
6

Explain how pressure can be used to change the state of matter

Physics
1 answer:
mestny [16]3 years ago
7 0

Answer:

Physical conditions like temperature and pressure affect state of matter. ... When the pressure exerted on a substance increases, it can cause the substance to condense. Decreasing pressure can cause it to vaporize. For some types of rock, decreasing pressure can also cause them to melt.

You might be interested in
First, you will investigate purely vertical motion. The kinematics equation for vertical motion (ignoring air resistance) is giv
Ivenika [448]

Answer:

2.85 s .

Explanation:

y(t) = y(0) + v₀t + 1/2 gt²

y(t) is vertical displacement , y(0) is initial position , v₀ is initial velocity and t is time required to make vertical displacement and g is acceleration due to gravity.

Here  y(0) is zero , v₀ = 14 m/s , g = 9.8 m s⁻² , y(t ) = 0 , as the pumpkin after time t comes back to its initial position, that is ground .

We shall take v₀ as negative as it is in upward direction and g as positive as it acts in downward direction

Put the values in the equation above,

0 = 0 - 14t + 1/2 x 9.8 t²

14 t = 1/2 x 9.8 t²

t = 28 / 9.8

t = 2.85 s .

8 0
3 years ago
Read 2 more answers
PAY ATTENTION MY QUESTION ASK FOR RADIATION!!!
Anestetic [448]

Answer:

The answer is c

Thermal energy moves within the air from the flames to the marshmallow.

Explanation:

Hope it helps

3 0
3 years ago
A car with mass 1500 kg moves with constant velocity of 36 m/s. The driver sees a group of cows in front and he immediately step
Crazy boy [7]
From laws of motion:

S = ( \frac{v + u}{2} ) \times t
Where S is the distance/displacement (as you would call it) which is unknown
v = final velocity which is 0m/s (this is because the car stops)
u = initial velocity which is 36m/s (from the data given)
t = time taken for the distance to be covered and it is 6s


Substitute the values, hence:
S = ( \frac{0 + 36}{2} ) \times 6
S = (18) \times 6 \\  \\ S = 108m

But this is merely the distance he travelled in the 6 seconds he was trying to stop the car.

Therefore, the distance between the car and the cows = 160-108
Distance = 52m
6 0
4 years ago
A moving walkway at the airport moves a 120Kg person 35m in 150s. How much power did this require?
Alexxx [7]

The amount of power required to move the 120 Kg person to a distance of 35 m in 150 s is 274.4 W

<h3>How to determin the power</h3>

Power is simply defined as the rate at which work is done. It can be expressed mathematically as

Power (P) = work (W) / time (t)

But

Work = force (F) × distance (d)

Therefore,

P = Fd / t

With the above formula, we can obtain the power as follow:

  • Mass (m) = 120 Kg
  • Distance (d) = 35 m
  • Time (t) = 150 s
  • Acceleration due to gravity (g) = 9.8 m/s²
  • Force (F) = mg = 120 × 9.8 = 1176 N
  • Power (P) = ?

P = Fd / t

P = (1176 × 35) / 150

P = 41160 / 150

P = 274.4 W

Thus, the power is 274.4 W

Learn more about power:

brainly.com/question/20353916

#SPJ1

6 0
1 year ago
What is the term used to describe a force that equals the sum of two or more forces
kirill115 [55]
<h3>NET FORCE </h3>

The net force is equal to the sum of two forces acting in the same direction on an object. The net force is always bigger than the individual forces in this scenario.

8 0
2 years ago
Other questions:
  • Explain why atmospheric pressure changes as atmospheric depth changes.
    8·1 answer
  • You travel in a circle, whose circumference is 8kilometers, at an average speed of kilometer/hour. If you stop at the same point
    11·1 answer
  • You have two solid steel spheres; sphere 2 has twice the radius of sphere 1. what is the ratio of the moments of inertia, i2 : i
    12·2 answers
  • A bulb thermometer gives an indoor temperature reading of 21°C. A digital thermometer in the same room gives a reading of 20.7°C
    14·2 answers
  • Reactants → products
    13·2 answers
  • 1. A 0.250 kg baseball sits on the ledge of a window in Treadwell hall. If the ball has 18.5
    10·1 answer
  • Kinematics
    6·1 answer
  • two-point charges are 10.0 cm apart and have charges of 2.0 uc and -2.0uc respectively What is the magnitude of the electrical f
    15·1 answer
  • You plan to visit a friend who lives 30 miles away. You predict that your average speed for this trip will be 50 miles per hour.
    6·1 answer
  • A railroad handcar is moving along straight, frictionless tracks with negligible air resistance. In the following cases, the car
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!