The answer is True
Burning fossil fuels DOES causes more air pollution than soil erosion, dust storms, and forest fires
Answer:
The magnetic field is 
Explanation:
From the question we are told that
The inner radius is 
The outer radius is 
The distance from the axis of the conductor is 
The current carried by the conductor is 
According to Ampere's circuital law , the magnetic field at a point that is 
from the axis of the conductor
![B = \frac{\mu_oI}{2 \pi d } [\frac{d - r_1}{r_2 -r_1} ]](https://tex.z-dn.net/?f=B%20%3D%20%20%5Cfrac%7B%5Cmu_oI%7D%7B2%20%5Cpi%20d%20%7D%20%5B%5Cfrac%7Bd%20-%20r_1%7D%7Br_2%20-r_1%7D%20%5D)
Where 
is the permeability of free space with a value of 
substituting values
![B = \frac{(4 \pi *10^{-7})(80)}{2 * 3.142 * 2 *10^{=3} } [\frac{(2^2 - 1 ^2 )*10^{-3}}{(3^2 - 1^2) *10^{-3}} ]](https://tex.z-dn.net/?f=B%20%3D%20%20%5Cfrac%7B%284%20%5Cpi%20%2A10%5E%7B-7%7D%29%2880%29%7D%7B2%20%2A%203.142%20%2A%202%20%2A10%5E%7B%3D3%7D%20%7D%20%5B%5Cfrac%7B%282%5E2%20-%201%20%5E2%20%29%2A10%5E%7B-3%7D%7D%7B%283%5E2%20-%201%5E2%29%20%2A10%5E%7B-3%7D%7D%20%5D)
Answer:
the vibrations push the purse up and down very fast and gravity pushes the purse down onto the floor
Explanation: does that help
Answer:
(C) They consist of ice.
Explanation:
Comet consist of a body of ice, rock and dust that can be several miles in diameter and orbits the sun. Debris from comets is the main source of many meteoroids.
Answer:
3.84 m/s
Explanation:
Using Bernoulli's equation below:
P1 + (1/2ρv1²) + h1ρg = P2 + (1/2ρv2²) + h2ρg
where P1 = P2 atmospheric pressure
(1/2ρv1²) + h1ρg = (1/2ρv2²) + h2pg
collect the like terms
h1ρg - h2ρg = (1/2ρv2²) - (1/2ρv1²)
factorize the expression by removing the like terms on both sides
gρ(h1 - h2) = 1/2ρ( v2² - v1²)
divide both side by rho (density in kg/m³, ρ )
g(h1 - h2) = 1/2 (v2² - v1²)
assuming the surface of the tank is large and the speed of water then at the tank surface v1 = 0
2g(h1 - h2) = v2²
take the square root of both side and h1 - h2 is the difference between the surface of the tank and the opening where water is coming out in meters
√2g(h1 - h2) = √ v2²
v2 = √2g(h1-h2) = √ 2 × 9.81×0.75 = 3.84 m/s
