Which of the following statements is true in regard to facial expressions across cultures?
a.
people are generally less accurate in identifying expressions of individuals from one's own culture.
b.
the type of expression displayed on one's face is generally recognizable across cultures.
c.
similar events generally trigger differing emotions in individuals across cultures.
d.
individuals across cultures generally interpret emotions in a different manner.

Me to solve all the questions on the sheet attached

An artificial satellite circles the earth in a circular orbit at a location where the acceleration due to gravity is 6.03 m/s^2. determine the orbital period of the satellite.

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.