Answer:
option C
Explanation:
The appropriate selection is option C
Kinetic energy refers to energy stemming from the movement of an object.
Potential energy is associated with the position of an object.
Option A is incorrect as potential energy arises from an object's location.
Option B is misclassified; it should describe potential energy instead of kinetic.
Option D indicates that the motion of individual molecules generates kinetic energy, not potential energy.
Thus, the correct option indicates that the covalent links within a sugar molecule represent potential energy due to the arrangement of the bond.
The volumes are 200cm3 and 0.0002m3
Answer: a) t = 1.8 x 10^2 seconds; b) t = 54 seconds; c) t = 49 seconds. Explanation: a) To determine the time of a stationary passenger on the sidewalk, we use the position formula. Given the constant speed of the walkway, we can calculate the time taken for set distances accordingly. This calculation extends into cases where combined velocities for walking are involved in subsequent queries.
<span>a. To determine the velocity at which the camera strikes the ground:
v^2 = (v0)^2 + 2ay = 0 + 2ay
v = sqrt{ 2ay }
v = sqrt{ (2)(3.7 m/s^2)(239 m) }
v = 42 m/s
The camera impacts the ground with a speed of 42 m/s.
b. To calculate the duration it takes for the camera to reach the bottom:
y = (1/2) a t^2
t^2 = 2y / a
t = sqrt{ 2y / a }
t = sqrt{ (2)(239 m) / 3.7 m/s^2 }
t = 11.4 seconds
The camera descends for 11.4 seconds before hitting the ground.</span>
