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
galben [10]
3 years ago
8

Which of the following is NOT true about a pool of water and a piece of ice? A They have the same composition. B They are in dif

ferent states of matter. C They have different chemical properties. D They have different physical properties.
Physics
2 answers:
anastassius [24]3 years ago
7 0
C. They have different chemical properties.
trapecia [35]3 years ago
3 0
Hint its either A or C!!!!!!
You might be interested in
If a 990 kg car is on the road and the Ff is 360 n what is the normal force
Veseljchak [2.6K]
Given that a car is in the road, there is only movement in the x-direction. There is no movement in the y-direction.

Looking at the y-direction for the normal force:

F = N - mg
0 = N - mg, (no movement in y-dir.)
N = mg
N = (990)(9.8)
N = 9702 newtons

The normal force exerted on the car by the road is 9702 newtons.
8 0
3 years ago
Read 2 more answers
When a person plucks a guitar string, the number of half wavelengths that fit into the length of the string determines the _____
Vedmedyk [2.9K]

Answer:

Frequency

Explanation:

Each half wavelength has a point of largest amplitude (aka a node). Depending on the wavelength each node oscillates at a certain rate of swings per unit of time. The latter is referred to as frequency and measure in Hertz [Hz].

8 0
3 years ago
the density of dry air at 20 degrees celsius is 1.20 g/L. What is the mass of air, in kilograms, of a room that measures 24.0m b
horsena [70]
<h2>Mass of air in a room that measures 24.0 m by 15.0 m by 4.0 m is 1728 kg.</h2>

Explanation:

Density of air = 1.20 g/L = \frac{1.20\times 10^{-3}kg}{10^{-3}m^3}=1.2kg/m^3

Size of room is 24.0m by 15.0 m by 4.0 m

Volume of room = 24 x 15 x 4 = 1440 m³

We know the equation

            Mass = Volume x Density

            Mass = 1440 x 1.2

            Mass = 1728 kg  

Mass of air in a room that measures 24.0 m by 15.0 m by 4.0 m is 1728 kg.

8 0
3 years ago
a van moves with a constant speed of 79 km/h how long will it take to travel a distance of 502 kilometers
Mazyrski [523]

Answer:

6.35hours

Explanation:

s=vt

t=s/v=502/79=6.35hours

5 0
3 years ago
An ideal gas is enclosed in a piston, and 1600 J of work is done on the gas. As this happens, the internal energy of the gas inc
Phantasy [73]

Answer:

- 1100 J heat flows out

Explanation:

dW = - 1600 J (as work is done on the gas)

dU = 500 J

dQ = ?

According to the first law of thermodynamics

dQ = dU + dW

dQ = 500 - 1600

dQ = - 1100 J

As heat is negative so it flows out.

3 0
3 years ago
Other questions:
  • Which of the following statements is true? The atmosphere is an example of a solution. In a glass of sugar water, sugar is the s
    5·2 answers
  • What two factors do u need to know to calculate how much work was done in any situation
    9·2 answers
  • What type of energy does a battery have?
    9·2 answers
  • esulfur burns easily .Iron is attracted by magnets .the mineral made by sulfur and iron ,but it does not burn and it is not attr
    10·1 answer
  • Explain how heat transfer is occurring through convection, radiation AND conduction in this picture.
    8·1 answer
  • A 4n force is applied to an object with a mass of 2kg what is the accelertion of the object
    6·1 answer
  • A jet plane passes over you at a height of 5870 m and a speed of Mach 1.47. (a) Find the Mach cone angle. (b) How long after the
    13·1 answer
  • If substance a and substance b have very different values for the index of refraction, what will happen to a light ray that pass
    13·1 answer
  • một vật có khối lượng m=1kg trượt trên mặt phẳng nghiêng hợp mới mặt đất một góc a sao cho sina=0.1 .sau khi trượt hết mặt phẳng
    7·1 answer
  • Which of the following is evidence that electromagnetic radiation can be described by the wave model?(1 point)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!