If the runner is running in a circular track then yes when something or someone is moving in a circular motion at a constant speed they are indeed accelerating. They’re accelerating because the direction of the velocity vector is changing
Since the Earth is almost spherical in shape, we are actually to find first the volume of the spherical segment at a depth of 1,000 m. The radius of the Earth is 6,371,000 meters. The volume of a spherical segment is:
V = 1/3*πh²(3r - h)
Substituting the values and making sure the units is in mm,
V = 1/3*π(1000 m * 1000 mm/1 m)²[3(6,371,000 m * 1000 mm/1 m) - (1000 m * 1000 mm/1 m)]
V = 2×10²² mm³
Thus, the total amount of bacteria is:
2×10²² mm³ * 100 bacteria/1 mm³ = 2×10²⁴ bacteria
Couloumb's law : (1/(4*pi*epsilon_nought))*((q_1*q_2)/r^2)
8.99*10^9* ((charge of a proton*charge of an electron)/(6.5*10^10m)^2)
8.99*10^9* ((1.602*10^-19)(|-1.602*10^-19|)/((6.5*10^10)^2)
=5.4608*10^-50
Answer:
Explanation:
When two similar resistances are joined parallel to each other , current becomes two times . It is as per ohm's law. On joining in parallel two equal resistances , total resistances of circuit become half. Hence as per ohm's law , current becomes double. Hence the given resistance is ohmic.
Current through the battery will be same as external current in the circuit . Let it be I . Let the external resistance be R . Let the emf of the battery be E . Potential difference on the battery
ΔV = E - IR
If I increases ΔVdecreases . So there is inverse relation.
Option D is correct .
So option A and D are correct.
