Participating in physical activity can to reduce stress in all of the following ways except:
a. it releases stored energy
b. it causes fatigue and exhaustion
c. it releases tension
d. it relaxes muscles

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

Aparticle travels in a circular orbit of radius 21 m. its speed is changing at a rate of 23.1 m/s2 at an instant when its speed is 37.2 m/s. what is the magnitude of the acceleration (in m/s? ) of the particle?

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?