Physics, 13.10.2019 10:00 AdanNava699
The wavelengths of radio waves are much than the wavelength of microwaves. therefore, radio waves carry much energy than a microwave.
a) longer , more
b) longer , less
c) shorter , more
d) shorter , less
Answers: 2
Physics, 22.06.2019 01:30
The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation
Answers: 2
Physics, 22.06.2019 05:40
Karen is running forward at a speed of 9 m/s. she tosses her sweaty headband backward at a speed of 20 m/s. the speed of the headband, to the nearest whole number relative to a stationary observer watching karen
Answers: 1
Physics, 22.06.2019 06:00
The frequency of vibrations of a vibrating violin string is given by f = 1 2l t ρ where l is the length of the string, t is its tension, and ρ is its linear density.† (a) find the rate of change of the frequency with respect to the following. (i) the length (when t and ρ are constant) (ii) the tension (when l and ρ are constant) (iii) the linear density (when l and t are constant) (b) the pitch of a note (how high or low the note sounds) is determined by the frequency f. (the higher the frequency, the higher the pitch.) use the signs of the derivatives in part (a) to determine what happens to the pitch of a note for the following. (i) when the effective length of a string is decreased by placing a finger on the string so a shorter portion of the string vibrates df dl 0 and l is ⇒ f is ⇒ (ii) when the tension is increased by turning a tuning peg df dt 0 and t is ⇒ f is ⇒ (iii) when the linear density is increased by switching to another string df dρ 0 and ρ is ⇒ f is ⇒
Answers: 3
Physics, 22.06.2019 06:40
Light traveling in a medium with a refractive index 1.19 is incident on a plate of another medium with index of refraction 1.79. at what angle of incidence is the reflected light fully polarized?
Answers: 2
The wavelengths of radio waves are much than the wavelength of microwaves. therefore, radio waves c...
Mathematics, 18.06.2021 18:00
Health, 18.06.2021 18:00
Mathematics, 18.06.2021 18:00
Social Studies, 18.06.2021 18:00
Mathematics, 18.06.2021 18:00
Mathematics, 18.06.2021 18:00
History, 18.06.2021 18:00
English, 18.06.2021 18:00
Engineering, 18.06.2021 18:00
Mathematics, 18.06.2021 18:00