Answer:
<em>D.) Object 1 has 4x the kinetic energy of object 2</em>
Explanation:
<u>Kinetic Energy
</u>
Is the type of energy an object has due to its state of motion. It is proportional to the square of the speed.
The formula for the kinetic energy is:
Where:
m = mass of the object
v = speed at which the object moves
Now suppose we have two objects with the same mass m1=m2=m and object 1 moves twice as fast as object 2, that is:
Let's compute their kinetic energies:
Since v1=2v2, the first kinetic energy is:
Dividing both equations:
Simplifying:
Or, equivalently:
Answer:
D.) Object 1 has 4x the kinetic energy of object 2
M/s^2 since acceleration is velocity/time=m/s/s=m/s^2
Answer:
the beetle's actual distance beneath the surface, d = 3.2 cm
Explanation:
The refractive index for the plastic is about 1.60
For overhead viewing, the expression for refractive index is
n = actual depth / apparent depth
Rearrange for actual depth
actual depth d = n x apparent depth
d = 1.60 x 2.0 cm
d = 3.2 cm
Answer:
It acts perpendicular to the velocity and is directed toward the center of the circle.
Explanation:
For a force to make an object move in a circular motion, the force must act perpendicular to the velocity and directed toward the center of the circle of motion as shown in the attached image.
Speed is the distance traveled
time
but velocity is the change in distance
time