Answer:
Option B
3
Explanation:
The two dimensions have the following significant numbers
4.56- 3 significant numbers
5.668- 4 significant figures
When responding, we give area as per the most precise number given hence the smallest (most precise) significant figures in these two numbers is 3. Therefore, the area will be given to 3 significant figures ie
4.56*5.668=25.84608 square meters
Area=25.8 square meters
Hello!
Yes, someone with an IQ score of 120 can be gifted.
An IQ score of 120 means that the individual is moderately gifted. Although this IQ doesn't qualify for gifted education programs, research shows that people with IQs of about 145-180 don't perform significantly better than people with 120s IQ in terms of success.
As an example, professor Dean Simonton from the University of California found that an optimum leader should have an IQ in the 120-125 range, so having an IQ of 120 would mean that the individual is gifted for leadership.
Have a nice day!
Answer:
a) E = 2.30×10^6N/C
Direction =+E . It will point radically outward
b)E = -3.3×10^5NC^-1
Direction =- E,it will point radically inwards
Explanation:
Magnitude E at 4.7cm= 0.047m
E= wavelength 1/2×3.142×rEo
E= (6.0×10^-6)/2×3.142×0.047×(8.85×10^-12)
E= (6.0×10^-6)/(2.6×10^-12)
E= 2.30×10^6N/C
Direction= +E shows it will point radically outward.
b) Magnitude E at 8.1cm=0.081
E= (wavelength 1+ wavelength 2) / 2×3.142rEo
E= [(6.0×10^-6)-(7.5×10^-6)]/(2×3.142×0.081×(8.84×10^-12)
E= -(1.5×10^-6)/(4.5×10^-11)
E= -3.3×10^5N/C
Direction =I-A it will point inwards
Answer:
The De Broglie wavelength decreases
Explanation:
The relationship between the De Broglie wavelength of a particle and its momentum is given by
where
is the De Broglie wavelength of the particle
h is the Planck constant
p is the momentum of the particle
As we see from the formula, there is an inverse relationship between the De Broglie's wavelength and the momentum. Therefore, we can conclude that:
- if the momentum of the electron increases,
- its De Broglie wavelength will decrease
and vice-versa.
1. Is decreases, stronger
2. Pounds