Answer:
D. all sounds are caused by vibrations
Explanation:
The statement above is FALSE.
The right hand rule is used in physics to predict the direction of the force on a charged object moving in a MAGNETIC FIELD. The right hand rule is used to relate the relationship between the magnetic field and the forces that are exerted on the moving objects in the field. Using the right hand rule, for a positively charged object that is moving in an electric field, the pointer finger will point in the direction the charged object is moving, the middle finger will point in the direction of the magnetic field and the thumb will point in the direction of the magnetic force that is pushing the charged object.
Answer:
Explanation:
Given
Wavelength of radiation
We know Energy of wave with wavelength is given by
where h=Planck's constant
c=velocity of light
=wavelength of wave
Hence the energy of the wave with wavelength 784 m is
Answer - true
Explanation-
the man would only weigh 13.7 kg on the moon
hope i helped:)