Answer:
it can contaminate the water
Explanation:
I hope this helps ;)
Answer:
Please find the answer in the explanation
Explanation:
Given that some plants were watered with 4 different types of water (salt water, regular water, sugar water and distilled water). After a two-week period, the height of the plants is measured.
1.) The Independent Variable (IV) are the different types of water
2)Dependent Variable (DV) are the height of the plant. Dependent variable depends on the independent variable.
3)Constant is the unchanged parameter which is the period - the two weeks
4)Control: is the quantity of water used.
Answer:
t = 47 years
Explanation:
To find the number of years in which the electrons cross the complete transmission, you first calculate the drift velocity of the electrons in the transmission line, by using the following formula:
(1)
I: current = 1,010A
A: cross sectional area of the transmission line = π(d/2)^2
d: diameter of the transmission line = 2.00cm = 0.02 m
n: free charge density = 8.50*10^28 electrons/m^3
q: electron's charge = 1.6*10^-19 C
You replace the values of all parameters in the equation (1):
with this value of the drift velocity you can calculate the time that electrons take in crossing the complete transmission line:
Finally, you convert this value of the time to years:
hence, the electrons take around 47 years to cross the complete transmission line.
<h2>Answer: 6031,9s
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The equation to calculate the period (in seconds) of a body orbiting a massive body (in this specific case a spacecraft with mass orbiting Mars) is:
(1)
Where:
is the radius of the orbit measured from the center of Mars to the satellite
is the gravity constant with a value of
is the mass of Mars, which is known to be
Now, if we are told that the spacecraft is in a low orbit near the surface of Mars, we can assume the radius of the orbit is approximately equal to the radius of Mars :
Having this stated, let’s begin with the solution:
Solving this equation being careful with the units, and taking into account we have:
Finally:
>>>>>This is the period of the orbit of the spacecraft around Mars