Answer: Could you please add the answer choices.
Explanation:
Thank you :)
Answer:
a) 
, 
, b) 
, c) 
, d) 
, e) 
Explanation:
a) The velocity function is determined by deriving the position function in time:
Velocities after 2 seconds and 4 seconds are, respectively:
b) The maximum height is reached when velocity is equal to zero:
The time when the projectile reaches the maximum height:
c) The maximum height is:
d) The projectile hits the ground when height is equal to zero:
The roots of the second order polynomial are presented below:
The first one is the only reasonable solution in physical terms.
e) The velocity of the projectile when it hits the ground is:
<span>The equilibrant, also known as the counterbalancer in a force system, is an equal but opposite force that produces equilibrium. It acts against the resultant force to keep a body motionless. Suppose we have a 20kg mass on one end of a swing and nothing on the other. The swing will be titled unevenly because no force balances the 20kg weight. On the other hand suppose a weight of 40kg rest on the other end. This force doesn't produce equilibrium either because it isn't equal to the 20kg weight; the swing would tilt towards the weight of larger mass. A 20kg mass will balance the system. Hence the force which balances other forces, thus bringing an object to equilibrium is the equilbrant.</span>
Nitrogen has an outer shell with 5 electrons it needs 3 to make 8 and be stable
Answer:
B. a large change in velocity over a short time interval
Explanation:
A "chjange in velocity" is acceleration. Acceleration is in units of meters/sec/sec or meter/sec^2.
)meters/sec) is velocity. Sec is the time.
Velocity/Time: A large change on the top (Velocity), divided by a small change in the bottom (sec) means the largest value for accceleration.
