What are the coefficients in this expression?
2 answers:
6 and
Explanation:
The expression:
6a -
A coefficient is a numerical constant usually placed before a variable in an expression.
They are used to multiply variables.
Given equation is;
There are two variables in this expression which are;
a and - b
The coefficients in this expression are:
6 and
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Answer:
Mass = 18.0 kg
Explanation:
From Hooke's law,
F = ke
where: F is the force, k is the spring constant and e is the extension.
But, F = mg
So that,
mg = ke
On the Earth, let the gravitational force be 10 m/.
3.0 x 10 = k x 5.0
30 = 5k
⇒ k = ................ 1
On the Moon, the gravitational force is of that on the Earth.
m x = k x 5.0
= 5k
⇒ k = ............. 2
Equating 1 and 2, we have;
=
m =
= 18.0
m = 18.0 kg
The mass required to produce the same extension on the Moon is 18 kg.