Answer:
The dependent variable is academic performance
The independent variable is the presence/absence of tutorial support
The control group are students who did not get the tutorial support.
The experimental group were students that got the tutorial support
Explanation:
In every experiment, there is a dependent and independent variable as well as an experimental and a control group.
The experimental group receive the treatment while the control group do not receive the treatment. The independent variable is manipulated and its impact on the dependent variable is evaluated.
The control group are students who did not receive the tutorial support while the experimental group are students that received the tutorial support.
The dependent variable in this case is academic performance. Its outcome depends on the presence or absence of tutorial support (independent variable).
Answer:
A) Newton’s 1st Law
Explanation:
<u>Answer</u>
5.9 × 10¹⁴ Hz
<u>Explanation</u>
The wave equation states that;
V = λf
Where V ⇒ velocity of light
λ ⇒ wavelength
f ⇒ frequency
V = λf
3.0×10⁸ = 510×10⁻⁹ × f
Dividing both sides by 510×10⁻⁹,
f = (3.0×10⁸) / (510×10⁻⁹)
= 5.8824 × 10¹⁴ Hz
Answer to the nearest tenth, 5.9 × 10¹⁴ Hz.
Answer:
- the age of the oldest stars
- patterns of background radiation
- how fast distant galaxies are moving away from us
Explanation:
According to the NASA, astronomers can estimate how old the universe is by comparing the age of the oldest stars and the rate of expansion of the universe. The rate of expansion of the universe is based on the Big Bang theory and it states that our universe is continuously expanding since it first developed. Astronomers measure Cosmic Microwave Background radiation resulting from the Big Bang.
