Answer:
Stretch and moving away from us, with more distant ones moving faster
Explanation:
Astronomers observed that the entire universe is getting bigger because distant galaxies appears to be moving away from us
The SI base units have the dimensions of: length, mass and time.
<h3>What are SI base units?</h3>
The SI base units are the internationally accepted system of units of fundamental quantities.
These SI base units consist of system of units of measurement starting with seven base units, which are as follows:
- second (s): the unit of time
- metre (m): The unit of length kilogram (kg): the unit of mass
- ampere (A): the unit of electric current
- kelvin (K): the unit oftemperature
- mole (mol.): the unit of amount of substance
- candela (cd):the unit of luminous intensity
Learn more about SI base units
brainly.com/question/4950932
Answer:
Explanation:
Kinetic energy is the energy an object possesses due to motion. It is calculated with the following formula.
The mass of the object is 4.7 kilograms. The velocity of the object is 7 meters per second.
Substitute the values into the formula.
Solve the exponent.
- (7 m/s)²= 7 m/s * 7 m/s = 49 m²/s²
Multiply the numbers together.
Convert the units. 1 kilogram square meter per square second is equal to 1 Joule.
The object has <u>115.15 Joules</u> of kinetic energy.
D)sound waves the electromagnetic spectrum has to do with colors<span />
Other characteristic of radiation is the presence of positive and negative charge.
<h3 /><h3>What other characteristic does the radiation have?</h3>
Positive or negative charge are the other characteristic that is present in the radiation. Beta radiation have negative charge while on the other hand, alpha radiation have positive charge.
So we can conclude that other characteristic of radiation is the presence of positive and negative charge.
Learn more about radiation here: brainly.com/question/893656
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