When collecting a gas over water, the gas is always a mixture of the gas collected and water vapor.
1 answer:
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Answer:
a)
b)
Explanation:
From the question we are told that:
Velocity of eagle
Frequency of eagle
Velocity of Black bird
Speed of sound
a)
Generally the equation for Frequency is mathematically given by
b)
Generally the equation for Frequency is mathematically given by
Explanation:
The given data is as follows.
k = 130 N/m, = 17 cm = 0.17 m (as 1 m = 100 cm)
mass (m) = 2.8 kg
When the spring is compressed then energy stored in it is as follows.
Energy =
Now, spring energy gets converted into kinetic energy when the box is launched.
So, =
=
= 1.34
v = 1.15 m/sec
Now,
Frictional force =
=
= 4.116 N
Also, Kinetic energy = work done by friction
1.8515 =
d = 0.449 m
Thus, we can conclude that the box slides 0.449 m across the rough surface before stopping.