It is technically stored in ATP energy, but in this situation it is chemical energy.
Answer:
The result is a vector perpendicular to the xy plane: 23.38 k
Explanation:
The cross product of two vectors r and s is defined only in three-dimensional space and is denoted by r × s. The cross product is defined by the formula:
r × s =║r║·║s║· Sin θ· n
where θ is the angle between r and s in the plane containing them, ‖r‖ and ‖s‖ are the magnitudes of vectors r and s, and n is a unit vector perpendicular to the plane containing a and b in the direction given by the right-hand rule.
So, the result is:
r × s = 4.40 * 7.45 * Sin (134.5°) k = 23.38 k
Centrioles are found in eukaryotic cells!
Answer: The following statement is incorrect: The normal force always points upward (positive y-direction).
Explanation:
The normal force, as his names points out, is always normal to the surface on which the object that is being acted on by this force is placed.
This means that it will always be at straight angles with the surface, regardless of the orientation of the surface.
For instance, in an inclined plane, is directly related with the angle that the plane has with the horizontal, and can be even horizontal if the surface is a vertical wall.
The normal force is one of the components of the contact force (the other one is the fricition force, always parallel to the contact surface), and adopts any needed value to satisfy the Newton's 2nd Law.
Given:
mass of the box = 200kg
velocity of the moving box = 5m/s
height of the box = 1m
Required:
The comparison of the kinetic energy and potential energy
Solution:
Kinetic energy can be calculated using the formula:
KE = 0.5(mass)(velocity)²
KE = 0.5(200kg)(5m/s)²
KE = 2500 Joules
Potential energy can be calculated using the formula:
PE = (mass)(gravity)(height)
PE = (200kg)(9.8m/s²)(1m)
PE = 1960 Joules
At the given conditions, the kinetic energy is greater than the potential energy. This means that the total energy is spent to move horizontally rather than vertically.