Current is defined (mathematically) by the equation i is equal to start fraction delta q over delta t end fraction (for average current) or i is equal to start fraction dq over dt end fraction (for instantaneous current, using calculus). using whichever definition you are comfortable with, when considering current in a wire, this can be stated (conceptually) as which of the following?

a. current is distance times charge (d times q) divided by distance times time (d times t).
b. current is the amount of charge in a wire, divided by the time it takes to fill the wire with charge.
c. current is the rate at which the total charge within the wire is changing.
d. current is the rate at which charge passes a certain place in the wire.

We want to calculate the total metabolic heat generated by a singing canary taking into account heat transfer by radiation, convection and exhaling air. the air temperature is 20 oc, canary’s body internal and surface temperature is 33oc, external body surface convective heat transfer coefficient is 25.2 w/m2 .k, temperature difference between the inhaled and exhaled air is 4.3 oc, the ventilation rate is 0.74 cc of air per second, specific heat of air is 1.0066 kj/kg.k and density of air is 1.16 kg/m3 . assume the canary’s body to be a cylinder with 7 cm diameter and 9 cm length, and heat exchange is from the side as well as the top and bottom of cylinder. calculate 1) the net rate of heat lost by radiation, assuming heat gained by the bird through radiation from the surroundings is 11.5 w; 2) rate of heat transferred by convection to the surrounding air; 3) rate of heat transferred in the exhaling air without considering any internal evaporation; 4) total metabolic power.

Rohit is trying to tune an instrument

If the new moon happens on january 15th, what shape will it be on february 6th?