Answer:
He did not do it very well.
Explanation:
He did it well ( into negative)
= He didn't do it well....
Please help
how long have people used coal as a source of fuel
A. 200 years
B. 1000 years
C. 3000 years
D. 5000 years
Answer:
c. 3,000
Explanation:
I am guessing 3000 years
The rate of change of momentum of a body free falling under gravity is equal to its? A. Velocity B. kinetic energy C. power D. weight
Answer:
weight
Explanation:
this is because of the lighter the object the faster it will be affected
Why is the ‘dark side’ of the moon a misnomer?
Answer:
For starters, “dark side” is a misnomer. The far side may be constantly facing away from Earth, but as it orbits the Earth it sometimes faces the sun just as the bright side does. Thus the far side is subject to the same day/night temperature extremes as the side facing Earth.
Explanation:
Help, Please.
A, B, C, or D
Answer:
B
Explanation:
Answer:
B
Explanation:
A momentum does not stop it is conserved
C momentum is a vector quantity while energy is a scalar there is a difference
D momentum can't be formed a new it is still conserved
(b) When the taps are opened, water flows in the pipe for some time. The diagram shows the final water level in container (i) Complete the diagram to show the final water level in container B.
(ii) Explain why the water starts to flow and then stops.
ii) The pressure difference in the two containers starts the flow of the water from container A to B until the pressure becomes equal in both the containers. Pressure causes force on water, because pressure = force/area
The modern model of the atom describes electrons in a little less specific detail than earlier models did. Why is it that being less sure about the placement of electrons in an atom is actually an improvement over earlier models?
Electrons do not follow specific paths, so describing the area where an electron is likely to be is more scientifically accurate.
Electrons were thought to be negatively charged, but now scientists know that their charge depends on their energy level.
The modern model is based on mathematical equations, so the results become less clear when the decimals are rounded.
The position of electrons in atomic models has changed so much that it is better to have a less specific model than to be wrong again.
Answer:
A.
Explanation:
Electrons don’t follow specific paths, so describing the area is more likely to be accurate. They orbit in clouds instead.
Answer: A
Explanation: Just got it right.
a doctor measures the temperature of a patient to be 101 degrees . what is this temperature in kelvins
Answer:
the answer is 374.15 kelvins
If one knew the luminosity of a star and measured its apparent brightness, which expression would one use to calculate the distance to the star
The expression which one would use to calculate the distance to the star is distance = sq. root. of (luminosity/4pi*apparent brightness)
What is Distance?
This is a scalar quantity and refers to how much ground a body has covered.
In a situation where parameters such as luminosity of a star and measured its apparent brightness are known then the distance to the star will be:
Distance= √(luminosity/4pi*apparent brightness)
Read more about Distance here https://brainly.com/question/17273444
3)
an electrical heater raises the temperature of a measured
quantity of water. six thousand joules of energy is absorbed
by the water from the heater in 30.0 seconds. what is the
minimum power rating of the heater?
a) 2.00 x10 w
c) 5.00 x10 w
b) 2.00 x10- w
d) 1.80 x 105w
Choose the clincher sentence that best restates the following topic sentence.
Scientists recently discovered that fun is not just fun; it's
good for the brain.
O A. Not having fun can be bad for the brain.
O B. Fun is definitely good for the brain!
O C. Sometimes, you can have too much fun for the brain to process.
O D. A fun activity like horseback riding can actually make the brain
smarter.
what type of matter is always made up of only one kind of atom
