Answer:
solid molecules are packed closely and liquid molecules are losely packed
Particle with more energy move SLOWER than particles with less energy.
So far, all we have is a very short true statement. If it's a multiple choice question, then where are they ?
Answer:
817.5 Pa
Explanation:
From Bernoulli's equation, considering thst there is no height difference then
P1+½d(v1)²=P2+½d(v2)²
P1-P2=½d(v2²-v1²)
∆P=½d(v2²-v1²)
Where P represent pressure, d is density and v is velocity. Subscripts 1 and 2 represent inside and outside. ∆P is tge change in pressure
Given the speed at roof top as 128 km/h, we convert it to m/s as follows
128*1000/3600=35.555555555555=35.56 m/s
Velocity at the bottom of roof is 0 m/s
Density is given as 1.293 kg/m³
∆P=½*1.293*(35.56²-0)=817.5 Pa
<span>The correct answer is: Towards
Explanation:
Doppler Effect is the apparent change in the frequency of a wave caused by the relative motion between the source of the wave and the observer. As the observer gets closer to the source, that observer will observe or sense the higher frequency of the wave (emitting by the source). Frequency in the case of sound waves is called the "sound's pitch." Therefore, the sound's pitch will increase if the Falcon moves towards the source of the sound. Hence, the correct option is "towards."</span>
