Answer:
C
Explanation:
He was using visual clues to read the signs.
The acceleration of the car is determined as 0.626 m/s².
<h3>
What is acceleration?</h3>
The acceleration of an object is the change in velocity of the object with time.
a = Δv/t
where;
- Δv is change in velocity
- t is the time of motion
Substitute the given parameters and solve for the acceleration.
v = 14 mph = 6.258 m/s
a = (6.258 m/s) / (10 s)
a = 0.626 m/s²
Thus, the acceleration of the car is determined as 0.626 m/s².
Learn more about acceleration here: brainly.com/question/14344386
#SPJ1
To solve this problem we will make a graph that allows us to understand the components acting on the body. In this way we will have the centripetal Force and the Force by gravity generating a total component. If we take both forces and get the trigonometric ratio of the tangent we would have the angle is,
Dividing both.
Therefore the angle that should the curve be banked is 15.608°
When we add a certain amount of heat Q to a substance, the temperature of the substance increases by a
given by
where m is the mass of the substance and Cs is the specific heat capacity of the substance.
By re-arranging the formula, we find
So, since the initial temperature of the metal is Ti=20 C, the final temperature is