Answer:
a) Linear equation
Explanation:
Definition of acceleration
if a=constant and we integrate the last equation
So the relation between the time and the velocity is linear. If we plot the velocity in function of time, the plot is a line, and the acceleration is the slope of this line.
Answer:
12.5 ft/s
Explanation:
Height of person = 6 ft
height of lamp post = 10 ft
According to the question,
dx / dt = 5 ft/s
Let the rate of tip of the shadow moves away is dy/dt.
According to the diagram
10 / y = 6 / (y - x)
10 y - 10 x = 6 y
y = 2.5 x
Differentiate both sides with respect to t.
dy / dt = 2.5 dx / dt
dy / dt = 2.5 (5) = 12.5 ft /s
The answer is: There are 3.42 moles of MgCl2 in 326g of the compound.
<h2>Why?</h2>Assuming that the compound is MgCl2, we can find how many moles of the compound are in 326 g of the same compound, calculating the molar mass of the compound, so:
Then,
Therefore, to calculate how many moles are in 326 of the compound, we can use the following equation
Hence,
There are 3.42 moles of MgCl2 in 326g of the compound.
Have a nice day!
Hello!
Recall for resistors in parallel:
We can begin by calculating the total resistance:
Now, we can calculate the current using Ohm's Law:
V = Voltage of battery (V)
i = Current (A)
R = Resistance (Ω)
Plug in the given voltage and the total resistance we solved for.