The type of EM wave having the highest frequency is
a. ultraviolet.
b. infrared.
c. x-rays.
d. microwave.
e. gamma rays.
e
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Projectile Motion: A marble moving 1.48 m/s rolls off the top edge of a 125-cm high table in a room where there is no appreciable air resistance and the acceleration due to gravity is 9.80 m/s2.(a) How far from the base of the table will it strike the floor?(b) How long will it be in the air?
What will be an ideal response?
Which of the following is not believed to be composed of quarks?
A) alpha particle B) beta particle C) proton D) neutron E) pion
As an artificial radio source, the spinning Earth would have a period of about a day
Indicate whether the statement is true or false
A 100-kg student eats a 200-Calorie doughnut. To "burn it off", he decides to climb the steps of a tall building. How high (in m) would he have to climb to expend an equivalent amount of work? (1 food Calorie = 103 calories.)
a. 273 b. 623 c. 418 d. 854 e. 8 400