Answer:
The angular speed is 4.22 rpm.
Explanation:
Given that,
Length of arm = 6.75 m
Mass of Europa
Diameter = 3120 km
We need to calculate the angular speed
Using formula of gravitational force
Put the value into the formula
Hence, The angular speed is 4.22 rpm.
Answer:
At least two objects must interact for a force to come into play.An interaction of one object with another object results in a force between the two objects and no physical contact is necessary.
Answer:
Explanation:
mass of alpha particle, m = 4 u = 4 x 1.67 x 10^-27 kg
charge, q = 2 e = 3.2 x 10^-19 C
radius, r = 3.45 cm
Magnetic field, B = 1.67 T
(a) let v be the speed
v = 2760000 m/s
(b) Let T be the period of revolution
T = 7.85 x 10^-8 seconds
(c) Kinetic energy, K =0.5 x mv²
K = 0.5 x 4 x 1.67 x 10^-27 x 2760000 x 2760000
K = 6.36 x 10^-15 J
(d) kinetic energy, K = e V
where, V is the potential difference
6.36 x 10^-15 = 1.6 x 10^-19 x V
V = 39754.35 V
<span>Two plastic balls suspended by strings are placed close to each other. If they have the same charge then they will repel each other.</span>
Answer:
<u><em>2.</em></u>
<u><em>Oxygen in your alveoli is diffused in to your blood and Carbon Dioxide is taken out of the blood and into the lungs</em></u>
Explanation:
Hope this helps:)