Answer:
Helium has many unique properties: low boiling point, low density, low solubility, high thermal conductivity and inertness, so it is use for any application which can explioit these properties. Helium was the first gas used for filling balloons and dirigibles
Answer:
A = 3.55 m
Explanation:
given,
depth of water = 20 m
Amplitude of wave at 20 m depth = 1.1 m
Amplitude at the depth of 6.2 m
amplitude is inversely proportional to depth of water
so,
A = 3.55 m
hence, the amplitude of the wave at the depth of 6.2 m is 3.55 m.
Answer:
2.705 m/s
Explanation:
formular for momentum(p):
P = m * v; where m and v represents mass in kg and velocity in m/s respectfully
total momemtum after an elastic collision we have;
Kindly attached to this mail.
Displacement is how much of a liquid (typically water for simplicity in the metric system) is pushed aside when another object is completely submerged. For example, when a 100mL of water has a block placed into it, and rises to 150mL, the block has displaced the water.
Answer:
Explanation:
m = Mass rocket = 1070 kg
v = Velocity of rocket = 3.75 m/s
a = Acceleration of rocket = 5g
g = Acceleration due to gravity =
The energy balance of the system is given by
The force balance of the system is given by
The distance the spring must be compressed is
The force constant of the spring is .