Question 1 options:
gas, solid, liquid
gas, liquid, solid
solid, liquid, gas
solid, gas, liquid
The state of matter with an indefinite shape and definite volume is _____.
Question 3 options:
Solid
liquid
gas
plasma
plasma
Deposition and condensation is an example of an endothermic reaction
Question 7 options:
True
False
Which one of the following statements best describes the particles in a gas?
Question 8 options:
They are very close together and are able to vibrate.
They are stationary and not able to vibrate
They are moving very slow and are far apart.
They are moving very fast and are far apart.
Question 1'sanswer is gas, liquid, and solid.
Why? Think about it - solids hold better than any of those two - And gasses hold the weakest and liquid goes in the middle :)
Question 3 is liquid, because if you put like, we'll say water, if you put water into a round bottle it would look round, right? It would go for any other shaped bottle - It would look like that same shape. But you can't change the volume - It will always be the same
Question 7 is FALSE - They're actually exothermic reactions. :)
Last question 8 - They are moving very fast and are far apart -
Note that the closer together molecules are together, the harder something is :D
↑ ↑ ↑ Hope this helps! :D
Momentum, a physics concept, is the product of mass and velocity of an object. An increase in either mass or velocity will increase an object's momentum. Momentum has the same direction as that of velocity.
Momentum in physics is the product of an object's mass (m) and velocity (v), represented as P=mv. Due to this relationship, if either the mass or the velocity of an object increases, its momentum will also increase. The momentum's direction is the same as the velocity's direction. If the direction of motion changes, the momentum's direction will also change.
Consider a situation where a car bumps into another car in front of it. Both the cars will experience a change in velocity and hence a change in momentum due to the collision. However, taking into account the principle of conservation of momentum, the total momentum before the collision would be equal to the total momentum after the collision, assuming that friction is negligible.
For example, a football player with greater mass running at high velocity will collide with greater impact because of greater momentum. Similarly, a smaller object moving with a high velocity can also achieve high momentum.
#SPJ3
Given: ME=6.0x1024 kg and RE=6.4x106m
Answer:
3.8 m/s²
Explanation:
g = GM / R²
g = G (0.11 ME) / (0.53 RE)²
g = 0.39 G ME / RE²
g = 0.39 (9.8 m/s²)
g = 3.8 m/s²
Answer:
vote me brainliest! Please!
simple put is 3.8 m/s²
took it on edge 2020
Answer:
Lead
Explanation:
To get the density of the material, the formula would be:
mass divided by volume which is given by .
Here in this problem, we are given a mass of which occupies a volume of .
So plugging the data in the above formula to find the density:
Density =
From the table, we can see that the material is Lead which has a density of 11.3c/cm^3.
Answer:
The correct answer is 0.47 m³
Explanation:
The formula for density (d) is
Mass (m) ÷ volume (v)
Hence
d = m ÷ v
The density of aluminium (as provided in the question) is 2700 kg/m³ and the mass of aluminium is 1280 kg, the volume is however unknown.
Thus, from the formula earlier
2700 = 1280 ÷ v
v = 1280 ÷ 2700
v = 0.47 m³
The volume of aluminium when the density is 2700 kg/m³ and the mass is 1280 kg is 0.47 m³
Answer:
volume = 0.47 .
Explanation:
Density:
We have that d = 2700 kg/ and that we have 1280 kg of Al.
V = 0.47