Someone places a chocolate bar near a working radar set that is used to locate ships and airplanes. Which best describes what is
1 answer:
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Answer:
k = 26.25 N/m
Explanation:
given,
mass of the block= 0.450
distance of the block = + 0.240
acceleration = a_x = -14.0 m/s²
velocity = v_x = + 4 m/s
spring force constant (k) = ?
we know,
x = A cos (ωt - ∅).....(1)
v = - ω A cos (ωt - ∅)....(2)
a = ω²A cos (ωt - ∅).........(3)
now from equation (3)
k = 26.25 N/m
hence, spring force constant is equal to k = 26.25 N/m
Answer:
The volume of an aluminum cube is 0.212 cm³.
Explanation:
Given that,
Edge of cube = 4.00 cm
Initial temperature = 19.0°C
Final temperature = 67.0°C
linear expansion coefficient
We need to calculate the volume expansion coefficient
Using formula of volume expansion coefficient
Put the value into the formula
We need to calculate the volume
The change temperature of the cube is
Put the value into the formula
We need to calculate the increases volume
Using formula of increases volume
Put the value into the formula
Hence, The volume of an aluminum cube is 0.212 cm³.