Andre listed some properties of electromagnetic waves.
1) transfer thermal energy by radiation
2) can transfer energy over great distances
3) need matter to transfer energy through
4) are disturbances that carry energy which best describes andre’s error?
a. electromagnetic waves transfer thermal energy by conduction.
b. electromagnetic waves can only transfer energy over short distances.
c. electromagnetic waves can transfer energy through empty space.
d. electromagnetic waves are not considered disturbances.

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

Smallest intensity of a stimulus that you can detect 50 percent of the time is

Identify some abiotic characteristics of the tundra biome.