A). balanced force
b). unbalanced force
There's no such thing as either of these. A group of two or more forces can be balanced or unbalanced. A single force can't be.
c). gravitational force ... doesn't cause an object to move in a circle;
Drop a stone from the roof of a tall building and watch it fall.
It goes straight down, not in a circle.
d). centripetal force ... force directed toward the center of a circle,
causes an object to move in a circle.
Answer:
Explanation:
Six waves passes by under 60second interval
Since it has 6 waves,
Then, it correspond to 3 wavelength
Then,
The period of each Each wavelength is 60 / 3
Then, period = 20seconds
From the relationship between frequency and period
f = 1 / T
f = 1 / 20
f = 0.05 Hz
Answer:
4940.12 m/s
Explanation:
For the net force on the moving electron to be zero, the Magnetic force must then match the electric force.
Magnetic force = Electric force
Magnetic force = qvB
Electric force = Eq
qvB = Eq
v = (E/B)
E = Electric field = 1.65 kV/m = 1650 V/m
B = Magnetic field = 0.334 T
v = (1650/0.334)
v = 4940.12 m/s
Hope this helps!!
The independent variable is the one thing that changes in the experiment, the dependent is what you are measuring, and controlled is all the things you keep the same and never change. So for the first one I=different tire trends (change it each time), D=breaking distance (what you are measuring) and C=use the same car, same brand of tires, same brand of brakes, run cars on same surface etc..
Hope this helps!
