Answer:
Mantle and core
Explanation:
The Mantle and Core are the two components within Earth experiencing convection. In several ways the mantle is significant. The one outcome of convective current is the creation of the fresh oceanic lithosphere around OCEANIC RIDGES, formed by mantle upwelling. Core is indeed the planet's innermost layer.
Answer:
100 years
Explanation:
10,000 divided by 100 equals 100
A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure. The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure.
Answer:
A. τ = 358 N.m
B. m = 73kg
C. V = 209.5 m/s
Explanation:
Let's first convert angular speed to rad/s:
ω = 4000 rev/min * 2π / 60 = 419 rad/s
Since Power is P = τ * ω,
τ = P / ω = 358 N.m
For part B: On the hanging weight:
T - m*g = 0
T = m*g
On the drum:
τ = T*R Replacing the expression for Tension of the rope:
τ = m*g*R
Solving for m:
m = 73 kg
For part C:
V = ω * R = 209.5 m/s
A non-contact force is a force which acts on an object without coming physically in contact with it. In contrast a contact force is a force which acts on an object coming physically in contact with it. ...
