All of the following statemants about the earths atmosphere are true except:
1.the atmosphere contains all gases that surround the earth
2.the atmosphere has no effect on landforms, but does effect he biosphere
3. meteorologist study the atmosphere and weather
4.heat and light from the sun must travel through the atmosphere to reach earth

Like a key in a lock, the shape of the. must bind with the. of the recieving neuron

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 710 n/m. it is initially at rest on an inclined plane that is at an angle of θ = 23° with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is μk = 0.19. in the initial position, where the spring is compressed by a distance of d = 0.16 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. a) what is the block's initial mechanical energy? 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.

Ineed the answers for these promblems i have