Answer:
The magnetic field of the particle is 1.5 T.
(C) is correct option.
Explanation:
Given that,
Momentum of particle 
Radius = 1.0 km
Charge of the particle 
We need to calculate the magnetic field
Using relation of radius of path in magnetic field
Here mv = p
Put the value into the formula
Hence, The magnetic field of the particle is 1.5 T.
Magnetic force and Gravity are non-contact forces among friction, electrostatic force, magnetic force and gravity.
C. Greenhouse gases contribute to climate change
Explanation:
It is desirable to use an energy source that does not produce greenhouse gases because these gases contributes a whole lot to climate change.
Over the years, studies have shown that the primary use of fossil fuels have significant lead to changes in the climate.
- Greenhouse gases are produced during the combustion of fossil fuels.
- The most important gas produced in this process is the carbon dioxide.
- The greenhouse gases prevents long range radiation from leaving the earth.
- They waves interacts with the gases and warms the earth surface.
- Anomalous concentration of the gases causes more warming of the earth surface.
- This leads to a change in climate.
Learn more:
Greenhouse gases brainly.com/question/4580761
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Distribute the product:
a×b = (8i + j - 2k) × (5i - 3j + k)
a×b = 8i × (5i - 3j + k) + j × (5i - 3j + k) - 2k × (5i - 3j + k)
a×b = (40 (i×i) - 24 (i×j) + 8 (i×k))
… … … + (5 (j×i) - 3 (j×j) + k×j)
… … … + (-10 (k×i) + 6 (k×j) - 2 (k×k))
Recall the definition of the cross product:
i×i = j×j = k×k = 0 (the zero vector)
i×j = k
j×k = i
k×i = j
and for any two vectors x and y, we have x×y = -(y×x).
So we have some cancellation and rewriting:
a×b = (40 (i×i) - 24 (i×j) + 8 (i×k))
… … … + (5 (j×i) - 3 (j×j) + j×k)
… … … + (-10 (k×i) + 6 (k×j) - 2 (k×k))
a×b = (-24k - 8j) + (-5k + i) + (-10j - 6i)
a×b = -5i - 18j - 29k
Then
b×a = -(a×b) = 5i + 18j + 29k
