The <u>direction</u> of force will determine the <u>direction</u> of acceleration.
Answer:
C ) Electric charge.
Explanation:
Amber is used in the experiments related to static electricity.
In electrostatics, elektron was the word used as a variation to amber, by the Greeks. Amber buttons, when rubbed with cloth, attracted hair.
Studies showed that when amber is rubbed with fur, fur became negatively charged and amber became positively charged. That is because amber loses its electrons to fur.
Motion is an example if a car was moving
Answer:
v = 4 m / s
Explanation:
In this exercise we are asked to find the speed of the wave, which is described by the expression
v = λ f
in this case the wave has 4 nodes and 3 antinodes, in a length of 12 m
for a standing wave it is satisfied that we have a full wavelength and a half of another
L = λ + ½ λ
L = λ
λ = ⅔ L
Cambien indicates that it has a frequency of
f = 0.5 Hz
we substitute
v = ⅔ L f
let's calculate
v = 12 0.5
v = 4 m / s
First, it is necessary to calculate the energy consumed by the bulb during the weekend:
(It is important to express time in seconds).
The energy associated with water is gravitational potential energy and we can write this type of energy depending on volume of water:
Clearing volume in the previous equation: