- 3 marks) a. How is the focal length related to the radius of curvature?
- 8. My favorite radio station is NPR, which transmits a signal that Is has a wavelength d 3.22 m. What is the fraquency of this signal? Remember, light speed k(3times 10^8m/s.)
- Un avion accélère sur une piste de décollage à une accélération de 3,20m/s^2 pendant 8,0 s jusqu'au décollage Détermine sa vitesse au moment de décollage.
- Question 17 (1 point) Heat Capacity is defined by the amount of heat a substance requires to increase its temperature by 1^circ C the amount of heat released by a substance the amount of light reflected by a substance the total heat and light energy from the Su
- __ 7. Which is not a type of electromagnetic radiation? a. electrons b. radar waves c. microwaves d. x-rays __ 8. Which statement is incorrect? a. Velocity is the speed of a wave. b. Wavelength is the distance between waves. c. Frequency is the number of wavelengths that pass a given point in a certain amount of time. d. Frequency and wavelength are inversely related. __ 9. Which statement is incorrect? a. X-rays travel at the speed of sound. b. X-rays have no charge. c. X-rays cannot be focused to a point. d. X-rays cause ionization. __ 10. Which statement is correct? a. X-rays are a form of electromagnetic radiation; visible light is not. b. X-rays have more energy than does visible light. c. X-rays have a longer wavelength than does visible light. d. X-rays travel more slowly than does visible light.
