Answer:
0.05 rad/s
Explanation:
7.8 km = 7800 m
For the residents inside the space cylinder to experience the same gravitation acceleration g = 9.81m/s2 on Earth, the centripetal acceleration must be the same as g
But centripetal acceleration is product of angular velocity squared and radius of rotation r
this question is centered around newtons second law f=ma
First you need to find the acceleration
that gives you 0.36 recurring(on both numbers) m/s²
mass= force ÷ acceleration
mass= 85.25 kg
if you want to check
f=ma
85.25 × 0.36 recurring (remember its on both numbers not just 6) = 31 N
Answer:
E = 5.65 x 10¹⁰ N/C
Explanation:
First we need to find the total charge on the sphere. So, we use the following formula for that purpose:
where,
q = total charge on sphere
V = Volume of Sphere =
σ = volume charge density = 1.5 C/m³
Therefore,
Now, we use the following formula to find the electric field due to this charged sphere:
where.
E = Electric Field Magnitude = ?
k = Coulomb's Constant = 9 x 10⁹ N.m²/C²
r = radius of sphere = 8 cm = 0.08 m
Therefore,
<u>E = 5.65 x 10¹⁰ N/C</u>
Answer:
×
Explanation:
Knowing that, the volume of the sphere is given by,
Thus, the fractional change in volume is given by,
×
Pressure at the bottom of the sea is,
Δp =pgh = ×
×
pa.
Knowing that,
Bulk modulus:
Answer = ×
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