Answer:
When it is cloudy, many of the sun’s rays never reach the Earth. It leads to cooler temperatures.
Explanation:
During the day, the sun warms the earth. When the sky is clear, more heat reaches the earth's surface . This leads to warmer temperatures.
However, when the sky is cloudy, a few drops of clouds reflect some of the sun's rays. As a result, less solar energy can reach Earth's surface, causing Earth to heat up more slowly. This leads to cooler temperatures.
If cloudy skies are forecast when forecasting daytime temperatures, expect lower temperatures than you would expect if clear skies were forecast.
Similarly, cloud cover at night has the opposite effect. When the sky is clear, the heat emitted from the earth's surface freely escapes into space, resulting in cooler temperatures.
However, when there are clouds, some of the heat from the earth's surface is captured by the clouds and returned to the earth. As a result, temperatures drop more slowly than when the sky is clear.
1-7
0-14
1-14
1-12
Automobile batteries contain _____.
sulfuric acid
hydrochloric acid
acetic acid
carbonic acid
Some acids are capable of drawing water out of an object. This process is called _____.
corrosion
dehydration
electrolysis
distillation
The strongest acid will have a pH of _____.
0
1
13
14
Any atom which no longer has a neutral charge is called a(n) _______ .
atomic or ion
c. surface currents
b. wind currents
d. density of currents
Inertia is the tendency of an object to resist changes in its state of rest or motion. Different types of inertia are: 1. The inertia of Rest: The inability of a body to change by itself its state of rest is called inertia of rest. Example: A person sitting in a car falls backwards when the car starts.
Inertia of Motion: The Inability of a body to change by itself its state of uniform motion is known as Inertia of motion.
Answer:
12500 J = 12.5 kJ
Explanation:
Kinetic energy is the energy possessed by a moving object solely due to its motion.
You can get the K.E. of an object using the equation,
K.E. = (1/2)mv²
So you get, for ball
K.E. = (1/2)×1000×5² = 12500 J = 12.5 kJ