Answer:
-(0.330m/s² ) kˆ
Explanation:
given data:
Mass of particle 'm'= 1.81 x kg
Velocity 'v'= (3.00 x m/s)j
Charge of particle 'q'= 1.22 x C
Uniform magnetic field 'B' = (1.63iˆ + 0.980jˆ )T
In order to calculate particle's acceleration, we'll use Newton's second law of motion i.e F=ma
Also,the force a magnetic field exerts on a charge q moving with velocity v is called the magnetic Lorentz force. It is given by:
F = qv × B
F= ma = qV x B
a= --->eq(1)
Lets determine the value of (v x B) first
v x B= (3.00 x m/s)j x (1.63iˆ + 0.980jˆ )
v x B= 4.89 x
Plugging all the required values in eq(1)
a= [1.22 x x (4.89 x kˆ)] / 1.81 x
a= -(0.330m/s² ) kˆ
-ve sign is representing the opposite direction
<u>Answer</u>
1/4
<u>Explanation</u>
half life = 15 years
decay period = 30 years
The number of half-lives = 30 ÷ 15
= 2 half lives
1 ⇒(<em>after 1st half life</em>) ⇒ 1/2 ⇒ (<em>after 2nd half life</em>) ⇒ 1/4
The fraction that remained is 1/4.
Many people are in favor of the dam. Hydroelectric power is not as polluting
as other forms of electrical generation. The country is growing quickly, and
its economy is growing. The country must be able to produce more electricity
to meet everyone's needs. However, those opposed say the dams will force
many out of their homes. It will destroy an important wilderness area, and may
damage ecosystems - especially river or fjord ecosystems in Patagonia, since
silt won't be carried down rivers. Many also say that the project helps the
copper mining industry, and they believe that this project will benefit
businesses, not the people of Chile
1) exhalation
2)neutralization reaction of antacids
3)washing clothes with detergents release a small amount of heat
4) degradation of biowaste
5) adding water to calcium oxide
Hope this answer helps you...
Answer:
<u>A kangaroo hops 60 m to the east in 5 s. What is the kangaroo's average velocity? ... The kangaroo stops at a lake for a drink of water and then starts hopping again to the south. Each second, the kangaroo's velocity increases 2.5 m/s.</u>