780 seconds, or 13 minutes.
In the future, please use proper capitalization. There's a significant difference in the meaning between mV and MV. One of them indicated millivolts while the other indicates megavolts. For this problem, I'll make the following assumptions about the values presented. They are:
Total energy = 1.4x10^11 Joules (J)
Current per flash = 30 Columbs (C)
Potential difference = 30 Mega Volts (MV)
First, let's determine the power discharged by each bolt. That would be the current multiplied by the voltage, so
30 C * 30x10^6 V = 9x10^8 CV = 9x10^8 J
Now that we know how many joules are dissipated per flash, let's determine how flashes are needed.
1.4x10^11 / 9x10^8 = 1.56E+02 = 156
Since each flash takes 5 seconds, that means that it will take about 5 * 156 = 780 seconds which is about 780/60 = 13 minutes.
Answer:
1) v = 0.45 m/s
2) v = 0.65 m/s
3) v = 0.75 m/s
Explanation:
1) We can find the speed of the object by conservation of energy:
Where:
k: is the spring constant = 280 N/m
v: is the speed of the object =?
m: is the mass of the object = 5.00 kg
x: is the displacement of the spring
2) When the object is 5.00 cm (0.050 m) from equilibrium, the speed of the object is:
3) When the object is at the equilibrium position, the speed of the object is:
I hope it helps you!
The volume of the square tank is
(10cm • 10cm • 10cm) = 1,000 cm^3 .
The volume of liquid in the cylinder is
500 m^3 = 500,000,000 cm^3 .
(500,000,000) / (1,000) = 500,000
The liquid in the measuring cylinder can fill the square tank 500,000 times.
Answer:
D. Allowing free electrons to escape from a negatively charged body
Explanation:
In order to neutralize a charge, an equal and opposite charge must be added or brought in contact with it.
From the options provided, only D is wrong.
Allowing free electrons to escape from a negatively charged body will cause the body to be positively charged. In such a body, the number of positively charged particles will be more. A neutralized atom or neutral atom has equal amount of positive and negative charges.
A tailwind means you add thed velocity of the tailwind to the velovity of the plane (no need for any vectors etc. so you just need (7.5x 102 ) +30 then convert it so it like one of the answers (btw - none of the answers is exactly correct - you need to round to get it) thats what you need to do to get the question
