Answer:
Explanation:
Given
Total Distance = 720km
Average Speed = 90km/h
Average Speed (285km) = 95km/h
Required
Determine the average speed for the rest of the journey
First we need to determine the time taken to complete the journey using
Make Time the subject of formula
Next, we determine the time taken to complete 285km of the journey using
Make Time the subject of formula
The difference between these calculated times is the time taken to complete the rest of the journey
Also, we need to calculate the distance of the rest of the journey
The average speed can then be calculated;
<em>Hence, the average speed of the rest of the journey is 87km/h</em>
Answer:
Take whatever you weigh in pounds and divide by 2.205.
Explanation:
Because weight is a measure of the force you exert on the earth, with some simple manipulation of Newton's second law we can get your mass in kilograms. 2.205 is just a nice constant that does that for you, but the more in-depth version is that
F = ma
The equation for weight is thus
W = mg, where W is your weight in pounds, m is your mass, and g is the acceleration due to gravity (9.80 m/s^2)
Thus, your mass in kilograms is m = W / g.
Could we have the choices? If we have those we could help you! εїз
Answer:
La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.
Explanation:
La fuerza eléctrica de atracción entre dos partículas cargadas eléctricamente es determinada por la ley de Coulomb, la cual dice que la fuerza eléctrica es directamente proporcional a la carga eléctrica e inversamente proporcional de la distancia entre las partículas. Matemáticamente hablando, la formula es descrita a continuación:
(1)
Donde:
- Fuerza electrostática, medida en newtons.
- Constante electrostática, medida en newton-metros cuadrados por Coulomb cuadrado.
, - Cargas eléctricas, medidas en Coulomb.
- Distancia entre partículas, medidas en metros.
Si sabemos que , , y , entonces la magnitud de la fuerza de atracción entre las cargas es:
La magnitud de la fuerza de atracción entre las cargas es 0.648 newtons.
Answer:
A variable (often denoted by x ) whose variation does not depend on that of another.
Explanation: