Answer:
Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines.
Explanation:
Answer:
23.98 rpm
Explanation:
d = diameter of merry-go-round = 2.4 m
r = radius of merry-go-round = (0.5) d = (0.5) (2.4) = 1.2 m
m = mass of merry-go-round = 270 kg
I = moment of inertia of merry-go-round
Moment of inertia of merry-go-round is given as
I = (0.5) m r² = (0.5) (270) (1.2)² = 194.4 kgm²
M = mass of john = 34 kg
Moment of inertia of merry-go-round and john together after jump is given as
I' = (0.5) m r² + M r² = 194.4 + (34) (1.2)² = 243.36 kgm²
w = final angular speed
w₀ = initial angular speed of merry-go-round = 20 rpm = 2.093 rad/s
v = speed of john before jump
using conservation of angular momentum
Mvr + I w₀ = I' w
(34) (5) (1.2) + (194.4) (2.093) = (243.36) w
w = 2.51 rad/s
w = 23.98 rpm
Answer:
25 m/s
Explanation:
The car's momentum is increased by the amount lost by the truck
750(15) + 7500 = 18750 kg•m/s
18750 / 750 = 25 m/s
This is False. Newton's First Law of Motion is often called the law of inertia.
Answer:
F = 2.6 x 10⁻²² N
Explanation:
According to the Coulomb's Law, the force of attraction or repulsion between two charges is directly proportional to the product of the magnitudes of both the charges and inversely proportional to the square of the distance between them. The formula for the force is given as follows:
F = k q₁ q₂/r²
where,
F = Force of Attraction or Repulsion = ?
q₁ = magnitude of first charge = charge on electron = 1.6 x 10⁻¹⁹ C
q₂ = magnitude of second charge = charge on proton = 1.6 x 10⁻¹⁹ C
k = Coulomb's Constant = 9 x 10⁰ N m²/C²
r = distance between the charges = 885 nm = 8.85 x 10⁻⁷ m
Therefore,
F = (9 x 10⁹ N.m²/C²)(1.6 x 10⁻¹⁹ C)(1.6 x 10⁻¹⁹ C)/(8.85 x 10⁻⁷ m)²
<u>F = 2.6 x 10⁻²² N</u>