Answer:
33627.4 N/m
Explanation:
By Hook's law F = k x
where F= force applied
K= Spring constant
x= distance it compresses.
Since the force applied in this case will be the weight of the object that causes it to compress, so, the weight will be (175 * 9.8) = 1715N force which causes a compression (x) of 0.0510m.
So,
F = K x
K = F / x
K = 1715 / 0.0510
K = 33627N/m
-- <em>Mechanical waves DO</em> require a medium in order to travel from place to place. (Sound can't travel without some material to travel through on the way.)
-- <em>Electromagnetic waves do NOT</em> need a medium in order to travel from place to place. (Sunlight reaches us from the Sun without anything to travel through on the way.)
The concept that should be used here is that heat loss is equal to heat gain. In this item, the heat lost by the aluminum pan should be equal to the heat gained by water. Such that,
750 g(0.215 cal/g°C)(T - 24) = (10000 g)(1 cal/g°C)(4°C)
The value of T from the equation is equal to 272°C.
Answer:
Landforms affect where people build houses and communities. Many people live on plains because it is easy to travel and to farm on flat land. Other people live in valleys, which are the land between mountains or hills. The soil in valleys is good for farming.
