Answer:
The south pole of one magnet attracts the north pole of the other magnet.
Explanation:
Opposites attract; likes repel :)
Answer:
Explanation:
This question is regarding gravity under motion. Then we can use motion equation to find the final velocity .
Inertial velocity is zero when it's release from rest.
V = U+at
V = 0+ 9.8×3.63
V = 35.574 m/s
Answer:
frequency = 104.80 Hz
wavelength = 0.567 m
frequency = 104.80 Hz
wavelength = 3.27 m
Explanation:
given data
mass m = 9.4 g = 9.4 ×
m
length L = 85 cm = 0.85 m
tension T = 39 N
to find out
frequency and wavelength
solution
first we find frequency for second overtone
f = 3 /2L × √(T/μ) .............1
put here all value and
here μ = m/L = 9.4 × / 0.85 = 1.10588 ×
kg/m
f = 3 /2(0.85) × √(39/1.10588 ×)
f = 104.80 Hz
and
wavelength is 2L/3
wavelength = 2(0.85) / 3
wavelength = 0.567 m
and
frequency = 104.80 Hz
and
wavelength by speed of sound i.e 343 m/s
wavelength = speed / f
wavelength = 343 / 104.80
wavelength = 3.27 m
Answer:
The truck and car have the same momentum.
Explanation:
= Mass of car = 
= Velocity of car = 
= Mass of truck = 
= Velocity of truck = 
Momentum of car
Momentum of the truck
Both the truck and car have the same momentum of 
.
The answer - all of the above.
X -rays are applied in many ways and for various purposes in every day life. They are defined as powerful waves of electromagnetic energy. They are able to penetrate most materials both organic and inorganic.
Their ability to penetrate organic material has made them especially useful in medicine where they can penetrate the body and reveal internal structures such as bones and organs.
In the airports, they are used for security purposes to check in luggage bags for prohibited or dangerous items.
In art, they are widely used by authenticators check for types of paper, materials, changes of composition and other clues to help establish authenticity of art pieces.
