Answer:
Lightning strikes the empire state building at an average of about 23 times a year.
Explanation:
The Empire State Building is one of the tallest buildings in New York. Because of how high it stretches up into the sky, lightning strikes are quite common to it. This is because part of the building touches the clouds which are usually charged during thunder storms.
According to weather reports, and the Empire State Building website, lightning strikes the empire state building about 23 times a year on the average.
Answer:
60.69 m
Explanation:
Using Newton's equation of motion,
s = vt.............. Equation 1
Where s = distance traveled, v = velocity, t = time.
Note: During the inattentive period, the car travels with a constant velocity.
Given: v = 95 km/h = (95×1000/3600) = 26.39 m/s, t = 2.3 s.
Substitute into equation 1
s = 26.39(2.3)
s = 60.687 m.
s ≈ 60.69 m.
Hence the car travels 60.69 m during the inattentive period.
Answer:
Explanation:
Conduction of heat through a thick layer is governed by the following relation
Q = KA( T₂ -T₁ ) / d
K is thermal conductivity of medium ( it is earth here ) , A is surface area though which heat conducts and T₂ -T₁ is temperature difference and d is thickness of medium through which heat conducts.
k = 8 units
A = surface area= 2πrL
= 2x 3.14 x 2/12 x 100
= 104.67 ft²
T₂ -T₁ = 70 - 42
= 28 F
d = thickness
= 30 /12 ft
= 2.5 ft
Putting the given values here
Q =
= 9378.4 Btu per hour.
Letter C because the farmer had felt the ground shake first than him listening to the sound