You do not get a sunburn, even on a sunny day, if you are behind glass. This is because
A) the glass blocks the ultraviolet, infrared, ultraviolet, X-rays, and gamma rays from the sun.
B) the glass blocks the X-rays and gamma rays from the sun.
C) the glass blocks the infrared radiation from the sun.
D) the glass blocks both the ultraviolet and the infrared radiation from the sun.
E) the glass blocks the ultraviolet radiation from the sun.
E
You might also like to view...
In an LC circuit, if we increase the initial charge on the capacitor (while keeping everything else the same), the circuit’s oscillation frequency will
A. increase. B. decrease. C. remain the same. D. One needs more information to answer.
A concave mirror has a focal length of 20 cm. What is the position (in cm) of the object if the image is upright and is two times larger than the object?
a. 30 b. 20 c. 10 d. 40 e. 60
A hoop with a mass of 2.75 kg is rolling without slipping along a horizontal surface with a speed of 4.50 m/s when it starts down a ramp that makes an angle of 25.0° with the horizontal
What is the rotational kinetic energy of the hoop after it has rolled 3.00 m down the ramp? A) 34.2 J B) 22.4 J C) 44.9 J D) 62.0 J E) This question cannot be answered without knowing the radius of the hoop.
Can we be certain that one of the balloons in Question 2 is electrostatically charged?