Answer:
26.67 m/s
Explanation:
From the law of conservation of linear momentum, the initial sum of momentum equals the final sum.
p=mv where p is momentum, m is the mass of object and v is the speed of the object
Initial momentum
The initial momentum will be that of basketball and volleyball, Since basketball is initially at rest, its initial velocity is zero
Final momentum
Answer:
The Earth is 4.543 billion years old
When sounds at two different frequencies are combined,
two new sounds are created ... at the sum and difference
of the original frequencies.
Combining two sounds at 490 Hz and 488 Hz creates
beats at 978 Hz and 2 Hz.
The fluttering "wah wah" effect of the 2 Hz beat is much more
noticeable than the new sound at 978 Hz.
Find enclosed file with a drawing and the calculations of all angles and all distances.
These are the results that you will find in it:
<span>Angle x = 90° - 22°15’
</span>
Angle y = 90° - 62°30'
Angle z = 22°15’ =
22.25°
Angle w = 62°30’ =
62.50°
tan(z) = H/a => a = H/tan(z)
tan(w) = H/b => b = H/tan(w)
a+b = 4 => H/tan(z) + H/tan(w) = 4 => H [1/tan(z) + 1/tan(x) ] =
4
<span>
</span>H = 4 / {[1/tan(z)
+ 1/tan(x) ] } = 1.35 miles
<span> </span>a
= 1.35 / tan(22.25°) = 3.30 miles
<span> </span>b = 4 – 3.30 = 0.7 miles
I hope it is very useful and you understand it. Let me know.
