Answer:
-47 °C
Explanation:
Speed of sound in air at sea level is:
v = 331 m/s + 0.6 m/s/°C T
where T is the temperature in Celsius.
The speed of sound is also the frequency times the wavelength:
v = fλ
Therefore:
fλ = 331 m/s + 0.6 m/s/°C T
(658 Hz) (0.46 m) = 331 m/s + 0.6 m/s/°C T
302.68 m/s = 331 m/s + 0.6 m/s/°C T
-28.32 m/s = 0.6 m/s/°C T
T = -47.2 °C
Rounding to two significant figures, the temperature is -47 °C.
Answer:
(i) by carrying an extra load may increase your weight.
(ii) the height of the stairs also which is the distance you climb through.
Explanation:
Since,
Power= work done/time
work done = force * distance.
*weight is a force.
*the height of the stairs is the distance.
the time depends inversely on the power which means that when the time spent is high the power is reduced. And in this case, we're trying to increase the power.
Answer:
water heat evaporated small tiny molecules form coluds .then clouds fall it rains at mountains.the water moves down to rivers,lakes.then again water evaporated rain falls . evaporated vapour it cools form water
Answer:
Hello, how's your day going?
if humanity came together and made a base on the moon, it would be revolutionary. The point of a base on the moon would have multiple purposes. for example, some think that the moon contains valuable metals such as iron and titanium. a base would serve as a place for workers harvesting metals to rest. Obviously or not most of the iron harvesting would be done automatically by robots and such.
If such a base were constructed on the moon, it would be the begining of people living on other worlds and would be a great start for a base on Mars.
Hope it helped
Spiky Bob
Answer:
The answer is B) Isla had a different time than hazel
Explanation:
