Answer:
mass=56.12kg
Explanation:
PE=mgh
4620=m×9.8×8.4
make msubject of the formula...
m =4620/(9.8×8.4)
m=4620/82.32
m=56.12kg
Answer;
the potential difference
The magnitude of the electric current is directly proportional to the potential difference of the electric field
Explanation;
An electric current results from the collective movement of free charges under the effect of an electric field. An electric field exists and can be observed in the space around a single charge or a number of charges.
Electric fields cause charges to move. It stands to reason that an electric field applied to some material will cause currents to flow in that material. In other words, the current density is directly proportional to the electric field. The constant of proportionality σ is called the material’s conductivity.
The Magnitude of the electric current is directly proportional to the voltage of the electric field.
Answer:
Thus, including a control condition allows researchers to compare the way things are in the presence of an independent variable with the way things would have been in the absence of an independent variable.
Explanation:
Thus, including a control condition allows researchers to compare the way things are in the presence of an independent variable with the way things would have been in the absence of an independent variable.
Answer:
current = 2.5A
Explanation:
We can use Ohm's law which states that V∝R so V=IR when the temperature is constant where V is the voltage (potential difference), I is the current and R is the resistance.
75= 30I
I= 75/30= 2.5A
a. True
b. False
its false guys this easy