The answer is D.)
In inelastic collision, when two objects collide, they stick together. Looking at the answer, it shows the before the collision, each object will have their own velocity but after the collision, they will have the same velocity. That's why the masses are added and only one velocity is multiplied.
Answer:
soccer ball
Explanation:
Because it's round in shape and therefore cannot be stopped as both moves at same speed. There's no edges or corners to bounce up and slow the ball.
The mass (in kg) of water in the pool is 1.264 kg.
<h3>What is mass?</h3>
A numerical measurement of inertia, a basic characteristic of all matter, in physics. It essentially refers to a body of matter's resistance to changing its speed or location in response to the application of a force. The change caused by an applied force is smaller the more mass a body has.
Mass is a physical body's total amount of matter. Inertia, or the body's resistance to acceleration when a net force is applied, is also measured by this term. The strength of an object's gravitational pull to other bodies is also influenced by its mass. The kilogram serves as the SI's fundamental mass unit.
Given: A pool is 31.4 m long and 40.0 m wide. if the average depth of water is 3.30 ft
31.4 40.0 = 1256
1 m = 39.37 in = 3.28 ft
3.30 ft = 1.01 m
Volume of pool = 1256 1.01 = 1264
Since 1 water contains the volume of the pool is
1.264 E3 E3 = 1.264E6 kg
(or 1.264 kg)
The mass (in kg) of water in the pool is 1.264 kg.
To learn more about mass refer to:
brainly.com/question/19385703
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Answer:Explanation:
A microscopic hair examination can also determine if a hair was forcibly removed, artificially treated or diseased. A comparison microscope can be used to compare a questioned hair to a known hair sample in order to determine if the hairs are similar and if they could have come from a common source.
Answer:
After 9 seconds the object reaches ground.
Step-by-step explanation:
We equation of motion given as h = -16t²+128t+144,
We need to find in how many seconds will the object hit the ground,
That is we need to find time when h = 0
0 = -16t²+128t+144
16t²-128t-144= 0
Negative time is not possible, hence after 9 seconds the object reaches ground.