Which are true for a photon. (Choose 3)
Energy can be calculated.
Is the same thing as an electron.
Is the smallest packet of light.
Energy cannot be calculated.
The higher the frequency, the higher the energy.
The higher the frequency, the lower the energy.

The position of a dragonfly that is flying parallel to the ground is given as a function of time by r⃗ =[2.90m+(0.0900m/s2)t2]i^− (0.0150m/s3)t3j^. a: at what value of t does the velocity vector of the insect make an angle of 34.0 degree clockwise from the x-axis? b: at the time calculated in part (a), what is the magnitude of the acceleration vector of the insect? c : at the time calculated in part (a), what is the direction of the acceleration vector of the insect?

Astate of matter all that has define volume and can flow is a(n)

What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?