Answer:
1)m=89.01 g
2)V(max) = 97.3 cm/s
Explanation:
Given that
K= 15 N/m
The maximum amplitude ,A=7.5 cm = 0.075 m
Given that 31 oscillations in 15 seconds ,this means that frequency f
f=\dfrac{31}{15}
f=2.066 Hz
lets take mass of the ball = m kg
m=0.08901 kg
m=89.01 g
The maximum speed
V(max)= ω x A
ω = 2π f= 2 x π x 2.066 = 12.98 rad/s
V(max) = 12.98 x 0.075 =0.973 m/s
V(max) = 97.3 cm/s
Answer:
Well,
Explanation:
In a wave, energy is transported without the transport of water. Basically, a wave can be described as a disturbance that travels through a medium, transporting energy from one location to another location without transporting matter.
Answer:
230 cm^3
Explanation:
Detailed explanation and calculation is shown in the image below
Answer:
F = G M m / R^ force between m and earth where R >= radius of earth
a = F / m = G M / R^2 acceleration at radius R
am / ae = (Re / Rm)^2 acceleration of meteor to that of earth
am / ar = (4 / 9.8) = (Re / Rm)^2
Rm = (9.8 / 4)^1/2 Re
Rm = 1.56 Re = 1.56 * 6.4E106 m = 10E6
10E6 - 6.4E6 = 3.6E6 m above surface of earth
(You only need mass of earth if you are calculating a at the surface of the earth)
Calculate g = G M / R^2 = 6.67E-11 * 6E24 / 6.4E6)^2 = 9.77 m/s^2
This is close to the value we used - 9.8 m/s^2
True .......................................