A: geologist
b: physical science
c: space science
d: ecologist
Answer and Explanation:
Before turning a hot plate on, one should consider these points:
- Check for the leads and ensure they does not trail in liquid.
- The cable should be checked for any exposed wire before turning on in order to prevent any shock.
- Any oil residue should be wiped off of the hot plate to ensure its longevity.
- It should be placed in a stable place in order to ensure safety against any hazard.
- Thus all the above mentioned points are correct to ensure safety.
Answer:
dz = 7.136 (answer)
Explanation:
given height for kate's kite = 50 ft (say y)
due to drift it move towards east = dx = 7 ft
string maximum length = 107 ft ( say z)
we have to find change in z
that is dz
it will form a right angle triangle for x , y and z where x is base y is height and z is hypotenuse
so we get according to Pythagoras Theorem
...............(i)
by derivative both side consider y as constant
from (i) equation
now put the value and find dz
after solving these we get
dz = 7.136 (answer)
Answer:
(a)
(b) 5 A
Solution:
As per the question:
Radius of the circular plate, R = 9 cm = 0.09 m
Distance, d = 2.0 mm =
At , current, I = 5 A
Now,
Area, A =
We know that the capacitance of the parallel plate capacitor, C =
Also,
Also,
Now,
(a) The rate of change of electric field:
where
(b) To calculate the displacement current:
where
= Rate of change of flux
1. I think it's the trails left by an electron as it moves around the nucleus.
2. The atomic number is the number of protons so it is 8.
3. It's mass is lowered but it is still the same element.