Answer:
sun, jupiter, earth, moon
Explanation:
how big they are
<span>A Doppler radar system transmits radio waves off of objects
and receives what bounces back.
The system measures the difference between the frequency
of the waves it sends and the frequency of the waves it receives.
If the waves come back at a higher frequency than they were sent,
that means the object is moving toward the radar antenna.
If the waves come back at a lower frequency than they were sent,
that means the object is moving away from the radar antenna.
This is kind of what choice-A is trying to say.
</span>
Answer:
You can compare and contrast the scientific method to the engineering design process
Explanation:
Answer:
The angular speed is 0.83 rad/s.
Explanation:
Given that,
Mass of disk M=49 kg
Radius = 1.7 m
Mass of child m= 29 kg
Speed = 2.6 m/s
Suppose if the disk was initially at rest , now how fast is it rotating
We need to calculate the angular speed
Using conservation of momentum
Put the value into the formula
Hence, The angular speed is 0.83 rad/s.