Answer:
The answer is the third option, the minimum force required to overcome static friction and move an object.
Explanation:
The first choice is talking about an object moving, and anything moving relates to <em>kinetic </em>friction, not static friction. I don't think it's the fourth option because, even with the net force being 0, the object could still be moving (again relating to kinetic friction).
Answer:
The gram is the basic unit of measurement
Explanation:
You use it to weigh small items such as sugar, flour, coffee, and other items that are similar.
If you want to measure in grams using a scale is the most accurate solution.
(have a nice day!)
Answer:use the formular distance over time i.e distance/time. Make sure to convert the distance from metres to kilometers and time from minutes to hours .
Explanation:
E=mc^2 n its given 1kg = 9x10^16J
so need to figure out the total mass loss n u can find the energy released
mass loss when 4x H atom combines to form 1x He atom in a fusion reaction is given as 4.59x10^-29kg
1 mole of He has 6.02x10^23 He atoms
so 2.7 moles of He has 2.7x6.02x10^23 He atoms
the total mass loss for 2.7 moles of He created in a fusion reaction
= 2.7x6.02x10^23 x 4.59x10^-29kg
= 7.46x10^-5kg
radiation energy released from this fusion reaction
= 7.46x10^-5 x 9x10^16J
= 6.7x10^12J
its 60 BILLION times more than burning carbon!!
Answer:
Electric potential, E = 2100 volts
Explanation:
Given that,
Electric field, E = 3000 N/C
We need to find the electric potential at a point 0.7 m above the surface, d = 0.7 m
The electric potential is given by :
V = 2100 volts
So, the electric potential at a point 0.7 m above the surface is 2100 volts. Hence, this is the required solution.
