Answer:
The one with highest velocity
Explanation:
The momentum of an object is given by

where
m is the mass of the car
v is the velocity of the car
In this problem, we have two identical cars: identical means they have same mass, so

The momentum of car 1 is

while the momentum of car 2 is

By comparing the two expressions, we see that the car with greatest momentum is the one with highest velocity, since the mass is the same.
Answer:
E = 120.77 J
Explanation:
Given that,
Mass of a baseball, m = 0.143 kg
Velocity of a baseball, v = 41.1 m/s
We need to find the kinetic energy of the baseball. We know that the kinetic energy of an object is associated with its motion. It can be given by the formula as follow :

So, the kinetic energy of the baseball is 120.77 J.
Explanation:
The unit of work done is in Joules
Work done is a physical quantity that is defined as the force applied to move a body through a particular distance.
Work is only done when the force applied moves a body through a distance.
Work done = Force x distance
The maximum work is done when the force is parallel to the distance direction.
The minimum work is done when the force is at an angle of 90° to the distance direction.
So to solve this problem;
multiply the force applied by Zack and distance through which the bull was pulled.
Answer:
Yes, the car driver is exceeding the given limit.
Explanation:
<u>Given:</u>
- Speed of the car, v = 38.0 m/s.
- Speed limit of the highway,

<h2><u>
Converting the speed limit from mi/h to m/s:</u></h2>
We know,
1 mi = 1.60934 km.
1 km = 1000 m.
Therefore, 1 mi = 1.60934 × 1000 m = 1609.34 m.
1 hour = 60 minutes.
1 minute = 60 seconds.
Therefore, 1 hour = 60 × 60 seconds = 3600 seconds.
Using these values,

Therefore,

Clearly,

which means, the car driver is exceeding the given speed limit.
Answer:
sound and radio waves are completely different phenomena.
Explanation: