<h3><u>Answer;</u></h3>
5.1 km
<h3><u>Explanation</u>;</h3>
The longest measurement made is 3.2 miles
But the SI units of distance is Km
1 mile = 1.61 km
Therefore; <em>3.2 miles will be equivalent to ; </em>
<em>3.2 × 1.61 </em>
<em>= 5.152 </em>
<em>≈ </em><u><em>5.1 </em></u><u>km</u>
Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel.
Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other.
Directive Property – A freely suspended magnet always points in a north-south direction.
Have a good day!
D.) Solar Energy & Wind Energy contains <span>inexhaustible energy
Hope this helps!</span>
Answer:
1)m=89.01 g
2)V(max) = 97.3 cm/s
Explanation:
Given that
K= 15 N/m
The maximum amplitude ,A=7.5 cm = 0.075 m
Given that 31 oscillations in 15 seconds ,this means that frequency f
f=\dfrac{31}{15}
f=2.066 Hz
lets take mass of the ball = m kg
m=0.08901 kg
m=89.01 g
The maximum speed
V(max)= ω x A
ω = 2π f= 2 x π x 2.066 = 12.98 rad/s
V(max) = 12.98 x 0.075 =0.973 m/s
V(max) = 97.3 cm/s