Answer:
The velocity of the student has after throwing the book is 0.0345 m/s.
Explanation:
Given that,
Mass of book =1.25 kg
Combined mass = 112 kg
Velocity of book = 3.61 m/s
Angle = 31°
We need to calculate the magnitude of the velocity of the student has after throwing the book
Using conservation of momentum along horizontal direction
Put the value into the formula
Hence, The velocity of the student has after throwing the book is 0.0345 m/s.
Answer: The wave can flip upside down.
Reflection is the bending of a wave when it cannot pass through. For example, plain mirrors which are flat, a ray of light hits the mirror and is reflected from the mirror since it cannot pass through
When reflection occurs the speed and frequency of the wave does not change but the wave is flipped upside down.
The speed does not change because speed is affected by the change in medium the frequency also remains the same since the energy of the wave does not change.
We're happy that you're asking for the "displacement", because displacement is simply the straight-line distance between the start-point and end-point, and we don't care about any of the motions or gyrations along the way.
From the graph:
-- The location of the object at time-zero, when time begins, is 10 meters.
-- The location of the object after 6.0 seconds is 4 meters.
-- The distance between the start-point and end-point is
(final location) - (initial location)
-- So Displacement = (4 meters) - (10 meters)
<em>Displacement = -6 meters</em>
Answer:
the speed of sound is 331.3 meters per second (1,087 feet per second) in dry air at 0 degrees Celsius
