It gets heavier and heavier
Constructive interference means that the waves combine instead of negate. if they are both amplitude x, adding them together would result in 2x, or doubling the amplitude of one of the waves
Answer:
-8 Kgm/s
Explanation:
From the law of conservation of moentum, the sum of momentum before collision equals the sum of momentum after collision. Therefore
Before collision
Momentum =+15 kgm/s+-35 kgm/s=-20 kgm/s
After collision
Momentum=-12 kgm/s +x kgm/s
x-12 kgm/s=-20 kgm/s
x=-20+12=-8 Kgm/s
The full question is:
On a keyboard, you strike middle C, whose frequency is 256 Hz. What is the period of one vibration of this tone?
The period of a vibration is the time it takes for the particle to make one full oscillation. Frequency is by definition number of full oscillations per unit of time.
When the frequency is expressed in Hz that unit of time is one second.
So there is the following relation between frequency and period:
When we plug in the numbers we get:
Answer:
<h2>15m/s</h2>
Explanation:
Step one:
given data
acceleration a=4m/s^2
final velocity v=35m/s
time t=5 seconds
Step two:
Required
initial velocity u=?
Applying the first equation of motion
v=u+at
substituting we have
35=u+4*5
35=u+20
u=35-20
u=15 m/s
The initial velocity is 15m/s