Answer:
2.25m/s
Explanation:
wavelength=4.5m
period=2sec
frequency= 1/period
=1/2
speed= wavelength×wave frequency
=4.5×1/2
=2.25 m/s
so, none of the options are correct
Answer:
160×10⁶ bar
Explanation:
Bulk modulus is defined as:
K = -V ΔP / ΔV
where V is the initial volume,
ΔP is the change in pressure,
and ΔV is the change in volume.
Given:
K = 160×10⁹ Pa
ΔV = -0.01V
160×10⁹ Pa = -V ΔP / (-0.01V)
160×10⁹ Pa = ΔP / 0.01
ΔP = 160×10¹¹ Pa
ΔP = 160×10⁶ bar
Answer:
8 atm
Explanation:
Ideal gas law:
PV = nRT
where P is pressure, V is volume, n is moles, R is universal gas constant, and T is absolute temperature.
If n is constant:
PV / T = PV / T
(4 atm) (60 L) / (27 + 273) K = P (40 L) / (127 + 273) K
0.8 atm = 0.1 P
P = 8 atm
