Answer
D) burning a candle
Explanation
When burning a candle no new substance is form.
We have both physical and chemical change occuring.
Physical part: Melting of the solid wax and evaporation of the liquid forms the physical change.
Chemical part: burning of the wax vapour forms the chemical change.
Answer:
See below
Explanation:
Find the NET forces on the objects
A 20==>
B 0
C 30==>
D 15==>
So biggest accel = C because it has the most force acting on it
next is A because it has the next biggest force
next is D then B ...B has no net force acting on it
Answer:
Convert your wavelength into meters. Divide the speed of light, ~300,000,000 m/s, by the wavelength in m. This gives you the wave's frequency
Explanation:
We are asked to solve for the capacitance of a charged proton and the formula is shown below:
C= q / ΔV
The given values are the following:
ΔV = 275 volts - 125 volts
C= 1.602 x 10-9 C
q = C * ΔV
q = 1.602x10-9 C * (150 volts)
q = 2.403 x 10-7 F
Answer:
D
Explanation:
I might be wrong but if I was you i would go with D
