Answer:
current in series is 1.33 mA
current in parallel is 5.48 mA
Explanation:
given data
voltage = 8 V
resistors R1 = 2.5 kilo ohms
resistors R2 = 3.5 kilo ohms
to given data
current flow
solution
current flow in series is express as
current = voltage / resistor
put here all value
current = 8 / (2.5 + 3.5)
current = 8 / 6
current = 1.33 mA
and
current flow in parallel is express as
current = voltage / resistor
put here all value
current = 8 / (1/ (1/2.5 + 1/3.5))
current = 8 / 1.45
current = 5.48 mA
1). Contrary to what we think we see around us every day, NO force is required
to keep an object moving at a constant speed in a straight line.
Force is required to <u>change</u> the object's motion . . . speed it up, slow it down,
or change the direction in which it's moving.
2.a). The motion of the box changes from not moving to moving.
The forces on it are unbalanced.
2.b). The motion of the box doesn't change. It goes from not moving to
still not moving. The forces on it are balanced.
2.c). The motion of the box changes from moving to moving slower.
After you stop pushing, the forces on it are unbalanced.
Answer:
The surface temperatures decreases with increasing distance from the sun. Venus is an exception because its dense atmosphere acts as a greenhouse and heats the surface to above the melting point of lead, about 880 degrees Fahrenheit (471 degrees Celsius).
Answer:
n = 3.1x10¹²
Explanation:
To find the number of electrons we need to find first the charge (q):
(1)
<u>Where</u>:
I: is the electric current = 0.59 A
t: is the time
The time t is equal to:
(2)
<u>Where</u>:
x: is the displacement
v: is the average speed = 2.998x10⁸ m/s
The displacement is equal to the perimeter of the circumference:
(3)
<u>Where</u> <em>d</em> is the diameter = 80.0 m
By entering equations (2) and (3) into (1) we have:
Now, the number of electrons (n) is given by:
<u>Where</u> <em>e</em> is the electron's charge = 1.6x10⁻¹⁹ C
Therefore, the number of electrons in the beam is 3.1x10¹².
I hope it helps you!
3. Sound waves from a shout move back and forth between canyon walls.
