The answer is 75 * Cos (45) = ..... Km
Answer:
Explanation:
= Displacement =
= Time taken =
Velocity is given by
The person is able to run at a speed of in order to complete the race in the given time.
The answer is 7 electrons. We know that Carbon has 6 electrons, so we could see that there is the charge that is -1, meaning there has to be one more electron than proton because that means it's gained an electron of -1 charge. Therefore 7 electrons to 6 protons.
Answer:
E = 10t^2e^-10t Joules
Explanation:
Given that the current through a 0.2-H inductor is i(t) = 10te–5t A.
The energy E stored in the inductor can be expressed as
E = 1/2Ll^2
Substitutes the inductor L and the current I into the formula
E = 1/2 × 0.2 × ( 10te^-5t )^2
E = 0.1 × 100t^2e^-10t
E = 10t^2e^-10t Joules
Therefore, the energy stored in the inductor is 10t^2e^-10t Joules