A graph of the net force F exerted on an object as a function of x position is shown for the object of mass M as it travels a ho
1 answer:
The alteration in kinetic energy is
Clarification:
According to the work-energy principle, the task performed on an object corresponds to the alteration in its kinetic energy. In mathematical terms:
where:
W signifies the work performed on the object
denotes the kinetic energy at the end
indicates the kinetic energy at the start
Furthermore, when the force is exerted in line with the object’s motion, the work done is expressed as:
Here,
F represents the force’s magnitude
denotes the object’s displacement
In this scenario, the force impacting the object is
F
While the distance moved is the horizontal length traveled, hence
Consequently, the work accomplished is
Thus, the alteration in kinetic energy amounts to
Learn more about work and kinetic energy:
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Answer:
a)n= 3.125 x electrones.
b)J= 1.515 x A/m²
c) =1.114 x
m/s
d) ver explicación
Explanation:
La corriente 'I' = 5A =>5C/s
diámetro 'd'= 2.05 x m
radio 'r' = d/2 => 1.025 x m
número de electrones 'n'= 8.5 x
a) La cantidad de electrones que pasan por la bombilla cada segundo se determina mediante:
I= Q/t
Q= I x t => 5 x 1
Q= 5C
Como sabemos que: Q= ne
donde e es la carga del electrón, es decir, 1.6 x C
n= Q/e => 5/ 1.6 x
n= 3.125 x electrones.
b) La densidad de corriente 'J' en el cable se calcula como
J= I/A => I/πr²
J= 5 / (3.14 x (1.025x )²)
J= 1.515 x A/m²
c) La velocidad típica '' de un electrón se expresa como:
=
=1.515 x / 8.5 x
x |-1.6 x
|
=1.114 x
m/s
d) De acuerdo con estas ecuaciones,
J= I/A
=
=
Si utilizaras un cable de doble diámetro, ¿cuáles de las respuestas anteriores cambiarían? ¿Aumentarían o disminuirían?
Explanation:
- A substance will float if it has a lower density than the liquid it is placed in.
- A substance will sink if its density exceeds that of the liquid.
Density of corn syrup =
1) Density of gasoline =
Gasoline's density is less than that of corn syrup, indicating it will float in corn syrup.
2) Density of water =
Water's density is also less than that of corn syrup, meaning it will float in corn syrup.
3) Density of honey =
Honey's density exceeds that of corn syrup, so it will sink in corn syrup.
4) Density of titanium =
The density of titanium is greater than that of corn syrup, hence it will sink in corn syrup.
The formula for range is:
Given values are:
where θ equals 14.1 degrees
Using the equation above,
The calculated range is 66.7 meters.
Therefore, the range is approximately 66.1 meters.