A resistor, an inductor, and ideal battery, and a switch are connected in series. Just after the switch is closed, which of the
1 answer:
Answer:
b) the current and the voltage across the resistor
Explanation:
As soon as we close the switch then the current in the circuit will be zero because the inductor connected in series will not allow to change the current through it due to its inertial property
Since initial current through the inductor is zero so after connecting the key the current will still remains zero and then it will start increasing
The equation for current is given as
so as soon as the key is closed the current in the circuit is zero and hence the voltage across the resistor is also zero as we know
so correct answer will be
b) the current and the voltage across the resistor
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Answer:
, where the minus indicates the direction is opposite to that of the throw.
Explanation:
a)
Since MKS stands for meter-kilogram-second and we know that:
We can write that:
These are conversion factors, equal to 1, so multiplying our results by them won't change their value, only their units.
So we have that:
b)
Newton's 2nd Law tells us that F=ma, and the definition of acceleration is , so we have:
Taking the throw direction as the positive one, for our values we have:
Answer:
<h2>volume= 0.85m^3</h2>Explanation:
<em>The density of a substance is defined as the mass per unit volume of the substance, the unit is in kg/m^3 and it is represented by the greek letter rho</em>
Step one:
given data
we are told that the density of Co2= 1.98 kg/m3
and the mass of Co2 is= 1.70 kg
we know the relation between mass, volume and density is
make volume subject of formula we have
substitute we have