Answer:
23 J
Explanation:
According to the law of conservation of energy, the total heat given off to the surroundings by a refrigerator is equal to the work done by the refrigerator and the heat removed from the inside of the refrigerator.
So we can write:
where
is the heat removed from the cold reservoir (the inside of the refrigerator)
W is the work done
is the work released into the hot reservoir (the surroundings)
Here we have:
(heat removed from the inside of the refrigerator)
(heat released into the surroundings)
Solving the equation for W, we find the work done:
Answer:
smaller acceleration, so lower change in velocity
Explanation:
To answer this question we examine the equation that relates mass with force and with acceleration: 
.
Since we want to know what happens to the acceleration, we solve for it in the equation: 
Notice that we are asked what happens when the force applied is the same, but now it is applied in an object with more mass (M).
We therefore would have to compare our initial form:
with the new one: 
wher the denominator is a larger quantity, therefore making our division/quotient smaller. Then, we conclude that the acceleration will be smaller, and therefore the change in velocity of the object will be lower.
The part that it played was in the changing of the environment/climate for the organisms that live on those continents. And the part it could've played was the way that the organisms had to adapt to that climate and it stayed that way over generations.
Answer:
a) 35 sequndos b) M1 = 600m M2 = 875m
Explanation:
a)
Antes de que el otro móvil comience a moverse, el primer móvil ha viajado 5 segundos a una velocidad de 15 m / s.
5 segundos x 15 m / s = 75 metros.
Podemos establecer una ecuación con la información que conocemos. Juntos, en total, los dos recorren 1475 metros.
Voy a representar el tiempo como t. Un móvil ya ha recorrido 75 metros y hará otros 15 t. El otro aún no se ha movido y viajará 25t. Esos tres números se sumarán a 1475.
75 + 15t + 25t = 1475.
Resta 75 de ambos lados y suma términos similares de t: 40t = 1400
t = 35 segundos.
b)
Ahora tome la distancia recorrida por cada vehículo por separado y conecte 35 segundos para t.
Primer móvil: 75 + 15t = 75 + 15 (35) = 600m
Segundo móvil: 25t = 25 (35) = 875m
Usé un traductor para entender la pregunta y luego traduje lo que escribí. Lo siento si mi explicación no es clara.
South it is the same direction the car is already moving
