Answer:
The kinetic energy of a 4 kg mass moving at 3 m/s is 18 joules.
Explanation:
The kinetic energy (KE) of an object is calculated using the following formula: (image inserted)
Where:
KE: is the kinetic energy
m: is the mass of the object
v: is the velocity of the object
In your case, the mass (m) is 4 kg, and the velocity (v) is 3 m/s. Plugging these values into the formula.
The unit of kinetic energy is the joule (J), which is equivalent to a kg m^2/s^2. So:
KE = 18 J
b. S
c. H₂
d. Ne
e. C
The substance that combined with the oxygen to form a greenhouse gas has been carbon (C). Thus, option E is correct.
The greenhouse gases have been responsible for the entrapment of the sun's energy in the atmosphere, leading to the increase in the temperature of earth and making earth an appropriate place to live.
The greenhouse gases have been the carbon dioxide, methane, sulfur etc. that are able to entrap the energy.
The reaction of carbon with oxygen has been resulted in the formation of carbon dioxide. It has been a green house gas.
Thus, the substance that combined with the oxygen to form a greenhouse gas has been carbon (C). Thus, option E is correct.
For more information about greenhouse gas, refer to the link:
A. the cumulative nature of science
B. the quantitative nature of science
C.the importance of thorough review of scientific papers
D. the importance of not publishing science until it is final
B. a Joule.
C. its heat capacity.
D. a Btu.
This should be EASY!
Answer:
19, K, 39.098
Explanation:
Potassium is a chemical element with symbol K and atomic number 19.
Atomic Mass: 39.098u
volcanoes erupting
underwater earthquakes
O greenhouse gases forming
evaporation from lakes and rivers
Answer:
Option D:
evaporation from lakes and rivers
Explanation:
The water cycle is a natural cycle that shows how water moves and circulates within a natural environment. Water usually moves between the hydrosphere and the atmosphere through evaporation and condensation.
When water evaporates from the hydrosphere (the water bodies), it goes up into the atmosphere where it cools to become clouds. As more water evaporates, the clouds formed increase in mass. Once the clouds are too heavy to be held up in the sky, they fall down as precipitation (rain, snow, hail) into the water bodies and surrounding land below.