Answer:
In summer in the North Hemisphere, Earth is tilted and Closer to the Sun on the North.
Explanation:
Answer:
1. (c) 2. (e) 3. (d) 4. (a) 5. (f) 6. (b)
Explanation:
Answer:
La opción correcta es C. Los lagos son ideales para la construcción de centrales hidroeléctricas.
Explanation:
Una central hidroeléctrica es una central eléctrica que utiliza agua corriente o que cae para poner una turbina en movimiento y generar electricidad a través de este. El uso de energía hidroeléctrica no produce contaminación ni residuos radiactivos peligrosos. Por eso se considera que las centrales hidroeléctricas generan energía verde.
En este contexto, los lagos son fundamentales para la construcción de las represas que almacenan el agua que se utiliza para hacer funcionar las centrales hidroeléctricas, ya que en el caso de los ríos, muchas veces ocurre que el ancho del caudal no es suficiente para poder realizar una construcción efectiva, con lo cual se construyen embalses artificiales que son un gasto extra de tiempo y dinero.
New Zealand has recently begun to diversify its trading partners because Britain entered the EU, which imposes tariffs on non-members, including New Zealand.
Answer: Option C
<u>Explanation:
</u>
In 1973, when Britain joined the European Union (Then European Economic Community) it came as a big shock to New Zealand as majority of its exports used to go to Britain. After this development New Zealand started to diversify its trade by reaching out to other potential trade partners.
The country had brought serious of reforms in the economy since 1980's by opening up its economy and today New Zealand exports its wide arrange of products to China, U.S, European Union and Australia.
Answer: 5040 joules
Explanation:
How much energy is released when 150g of silver cools from 220°C to 80°C?
Given the following :
Mass (m) of silver = 150g
Change in temperature (ΔT) = (220 - 80)°C = 140°C
Q=mcΔT
Where Q = quantity of heat
m = mass of silver ; c = specific heat capacity
Specific heat capacity of silver = 0.240 j/g°C
Q = (150 * 0.240 * 140)
Q = 5040J
