Because the proper motion of the Andromeda Galaxy toward us ...
about 2.5 million light years distant from us ... exceeds the Hubble speed
of recession ... something like 75 km/sec per megaparsec as I recall.
Answer: I = 0.00383A (approx.)
Explanation:
Using the formula:
B = uni
Where B= magnetic field; 0.160mT
= 0.160 × 10^-2 m/T
n = N/L ; N= 4200 turns,
L =1.25mm = 1.25 × 10^-3m
u = 4π × 10 ^ -7.
Now since magnetic field inside a solenoid is independent of dimension B = uNI/L
I = BL/uN
= 0.00162 × 0.00125 /(4200 × 4π ×10 ^ -7)
I = 0.00384A
Answer:
a)(2×40+2×80)/(2+2)=240/4=60
b)(240)/(120/40+120/80)=240/(3+1.5)
240/4.5=53.33333
no
The car covers a distance <em>d</em> after time <em>t</em> of
<em>d</em> = (2.8 m/s²) <em>t</em>²
Solve for <em>t</em> when <em>d</em> = 69 m:
69 m = (2.8 m/s²) <em>t</em>²
<em>t</em>² = (69 m) / (2.8 m/s²)
<em>t</em> ≈ 4.96 s
89 metres for each second.
89*3
= 267 metres.
