There are many other renewable sources to use such as hydro power, and wind power. All of these are renewable and safe to the environment. One reason solar power may not be used is because of it's cost.
Answer:
A) 32.22 N/m b) 0.0156 m c) 4 Hz
Explanation:
Using Hooke's law;
T = 2π √m/k where m is mass of the body in kg and k is the force constant of the spring N/m and T is the period of vibration in s.
M = 51 g = 51 / 1000 in kg = 0.051kg
Make k subject of the formula
T/2π = √m / k
Square both sides
T^2 / 4π^2 = m/k
Cross multiply
K = 4 π^2 * m/T^2
K = 4 * 3.142 * 3.142 * 0.051/ 0.25^2= 32.22N/m
B) using Hooke's law;
F = k e where e is the maximum displacement of the spring from equilibrium point called amplitude
F= weight of the body = mass * acceleration due to gravity = 0.051*9.81
0.5 = 32.22 * e
e = 0.5/32.22 = 0.0156 m
C) frequency is the number of cycle completed in a second = 1 / period
F = 1 / 0.25 = 4Hz
The term plane represents a tile floor without any overlapping or gaps.
A plane is a surface formed by a straight line travelling at a fixed speed in relation to another fixed point. Thus the term "plane" is the most appropriate to describe a tile floor without any overlaps or gaps. A plane is referred to as a two-dimensional surface with three defined points that extend forever. Tessellation is the technique that results in no overlaps or gaps in a plane. Tile that overlaps does not create "crosses." reputed to be a little more structurally sound, similar to the way brick is built.
Learn more about planes here:
brainly.com/question/1962726
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Answer:
Part a)
Part b)
Part c)
Part d)
Displacement for entire trip = 0
Part e)
Average velocity for entire trip will be zero
Explanation:
Part a)
Displacement after t = 2.4 hours is the straight line distance between initial and final positions
so we have
Part b)
Average velocity is defined as
Part c)
During his return journey the displacement will be same
so average velocity is defined as
Part d)
Displacement for entire trip = 0
as initial and final position will be same
Part e)
Average velocity for entire trip will be zero
