Answer:
The correct answer is 12.8 J.
Step-by-step explanation:
To solve this problem, we must remember how to calculate the kinetic energy of an object.
The kinetic energy is represented by the formula K = 1/2 * m * v^2, where m represents the mass of the object and v represents the speed or velocity of the object. If we plug in the given values into the formula, we get:
K = 1/2 * m * v^2
K = (1/2) * (0.40) * (8.0)^2
Our first step is to square the velocity. After doing this step, we get the following:
K = (1/2) * (0.40) * (64)
Finally, we can perform the multiplication, to get:
K = 12.8
The unit for kinetic energy is joules, so the correct answer is 12.8 J.
Hope this helps!
Answer:
6x^3-38x^2+65x-21
Step-by-step explanation:
Answer:
<h2> Jaime will bike 28 miles and Cori will bike 29.82</h2>
Step-by-step explanation:
In this exercise we are dealing with unit conversion, that is we are expected to convert from one unit to another.
Jaime's speed= 14mph
Cori's speed= 0.4km/min
now since the options for the answer is in miles, we have to convert Coris's speed for Km per min to mile per hour
we have
0.4km/min = 14.9129 mph
Applying the equation
d = ut
for Jaime
d= 14*2= 28 mph
for Cori
d= 14.9129 *2= 29.8258 mph
