Answer:
(a) 0.42 m
(b) 20.16 N/m
(c) - 0.42 m
(d) - 0.21 m
(e) 17.3 s
Solution:
As per the question:
Mass, m = 0.56 kg
x(t) = (0.42 m)cos[cos(6 rad/s)t]
Now,
The general eqn is:
where
A = Amplitude
= angular frequency
t = time
Now, on comparing the given eqn with the general eqn:
(a) The amplitude of oscillation:
A = 0.42 m
(b) Spring constant k is given by:
Thus
(c) Position after one half period:
(d) After one third of the period:
(e) Time taken to get at x = - 0.10 m:
t = 17.3 s
Answer:
0.000311 m³
Explanation:
The formula that connect volume, mass and density is given below
D = m/v ...................... Equation 1
Where D = Density of the gold, m = mass of the gold, v = volume of the gold.
make v the subject of the equation
v = m/D .................. Equation 2
Given: m = 6 kg,
Note the density of pure gold = 19300 kg/m².
Substitute into equation 2
v = 6/19300
v = 0.000311 m³
Hence the volume that will verify that it's a pure gold = 0.000311 m³
Focusing means you’re paying particular attention to something
Hey there <span>kristenklimasz!
</span>
Question:
<span>Dinosaurs emerged during what time period?
</span>
Answer:
Dinosaurs lived between 230 and 65 million years ago during that time it was called Mesozoic Era this was way before the first homo sapiens appeared there is 3 periods in the Mesozoic Era. Triassic, Jurassic, and Cretaceous
So your answer is
<span>C) Mesozoic Era
</span>
Hope this helps!
-Jayden