It states that energy neither be created nor be destroyed.energy may only be transform from one form to another. example mechanical energy= ek + ep
Answer:
<em>The specific heat capacity of something is simply the amount of heat energy required to raise 1g of that substance or object by 1°C.</em>
<em>The specific heat capacity of something is simply the amount of heat energy required to raise 1g of that substance or object by 1°C.It is given by the formula Q = mcΔT, where Q is the energy transferred (J), m is the mass of the substance (kg), c is the specific heat capacity, and ΔT is the temperature change (°C).</em>
Answer:
Electric field E = kQ/r^2
Distance between charges = 6.30 - (-4.40) = 10.70m
Say the neutral point, P, is a distance d from q1. This means it is a distance (10.70 - d) from q2.
Field from q1 at P = k(-9.50x^10^-6) / d^2
Field from q2 at P = k(-8.40x^10^-6) / (10.70-d)^2
These fields are in opposite directions and are equal magnitudes if the resultant field = 0
k(-9.50x^10^-6) / d^2 = k(-8.40x^10^-6) / (10.70-d)^2
9.50 / d^2 =8.40 / (10.70-d)^2
d^2 / (10.70-d)^2 = 9.50/8.40 = 1.131
d/(10.70-d) = sqrt(1.1331) = 1.063
d = 1.063 ((10.70-d)
= 10.63 - 1.063d
2.063d = 10.63
d = 5.15m
The y coordinate where field is zero is 6.30 - 5.15 = 1.15m
Explanation:
As per question the coin is falling under gravity as there is no other force that has bee mentioned here.
so the equation of motion for a freely falling body is given as-
here the initial velocity is zero as the coin was at rest.
hence we have
so now we have to calculate the displacement of the coin at various instants.
at t=0.2212 s,we have
=0.2398m[upto four decimal digit
again when t=0.737 s
s=
=2.662m [upto three decimal digit] [ans]
Answer:
Explanation:
The centripetal force is given by:
Here m is the body's mass in which the force is acting and is the centripetal acceleration:
Here v is the speed of the body and r its radius. The speed is given by:
Replacing (3) in (2):
Replacing (4) in (1) and solving for f: