Answer: 3A
Explanation:
First, we must calculate voltage by summing the reciprocal of the resistances in the circuit
1/40 +1/40 = 2/40 = 1/20 = 1/R, so R = 20Ω
Using Ohm's Law, I = V/R, so the current I is I = 120/20 = 6A
Using Kerchoff's Circuit Law, we know that current will split evenly at a junction, so each resistor will get one half, or 3A.
The size of the star defines wither of not it is a dwarf star, or a red giant.
Take left to be the negative direction, and right to be positive. That means the forces on the squirrel would be -2N and 3N.
Add all the forces to find the net force on the squirrel. -2N+3N=1N
Because the positive direction is to the right, the net force of 1N is directed to the right.
Answer:
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The answer is </h2><h2>
a. 5g/mL</h2>
Explanation:
Given data
mass m= 45g
volume v= 9mL
we know that density=m/v
substituting our given data we have
What is Density?
The Density of a body can be defined as the ratio of mass to volume,
or
Density, mass of a unit volume of a material substance. The formula for density is 
,
where d is density,
M is mass, and
V is volume.
Density is commonly expressed in units of grams per cubic centimetre.
D. Assuming that it doesn’t accelerate and then decelerate between seconds.
