Physics Middle School

A ball of mass 100g thrown by a man moves at a velocity of 100m/s. what is the momentum? need the answer step by step plssss!!​ i need it fast!!!!!!!

Answers

Answer 1

Explanation:

Mass of the ball= 100 g = 0.1 kg

Velocity of the ball before collision=10 m/s

Momentum of the ball before collision, p(i)=mv= 0.1×10=1 kgm/s

Since, ball returns back with same velocity

Therefore, velocity of ball after collision = -10 m/s (-ve sign due to opposite direction)

So, momentum of ball after collision,p(f) = 0.1 ×(-10) = -1 kgm/s

Now, Impulse generated in the ball= change in momentum= p(f)-p(i)= -1–1= -2 kgm/s

Answer 2
λ=
mv
h
​

λ⟶De Broglie wavelength
m=100 g=
1000
100
​
kg=0.1 kg
v=100 ms
−1

λ=
mv
h
​
=
0.1×100
6.623×10
−34

​
=6.626×10
−35
m

Related Questions

What is soil erosion

Answers

Answer:

Soil erosion is a naturally occurring process that affects all landforms. In agriculture, soil erosion refers to the wearing away of a field's topsoil by the natural physical forces of water and wind or through forces associated with farming activities such as tillage.

Answer:

It is the breakdown of soil due to natural processes

Explanation:

Soil erosion is a gradual process that occurs when the impact of water or wind detaches and removes soil particles, causing the soil to deteriorate. Soil deterioration and low water quality due to erosion and surface runoff have become severe problems worldwide

I need help it is about physics

Answers

Answer:

a force

Explanation:

Because if we apply force then only an object can slow down, speed up or change direction

The movement of liquid particles through a characteristic path or circlar motion

Answers

Answer:

a path

it refers to a path or way taken by a matter to displce

It is talking about a path

Cara is swimming in a river. She can swim downstream up to a maximum speed of 66 meters per-minute. If she is swimming downstream at half of her maximum speed, how far will she swim in 13 minutes?

Answers

It would be 429 because in the question it said “ if she was swimming downstream of HALF of her maximum speed, how far will she swim for 13 minutes” so first you would divide 66 by 2 and get 33 then you would multiply 33 by 13 to get you’re answer.
429 meters
Half of 66 is 33 so that’s half of her maximum speed.
You then take 33 and times it by 13.
66/2=33
33x13=429
Hope this helps!

i need help about this question of physics

Answers

Answer:

D

Explanation:

Each notch is 1m,

60 kg 2m away is equal to 40 kg 3 m away

D is 3m away

The correct answer is D

Of course, I'll be the same like anyone else. mARkInG bRaInlESt iF cORrEcT

Answers

Answer:

(a) Brightness if the bulb will reduce.

(b) The bulb will remain the same

(c) The brightness of the bulb will increase

C because i’m so good at biology and the anatomy of the human body would have sex

During a hockey game, the puck slid from the center line directly to the goal line in 1.5 seconds. The center line is 27 meters from the goal line. As the puck slid, it was chased by a hockey player skating at 9.5 meters per second. What was the puck's velocity?

Answers

Answer: The pucks velocity was 18 meters per second.

Explanation: First I divided 27 by 3 because of the 1.5 seconds and the i multiplied my answer by 2 and got that it traveled 18 meters in 1 second.

During a hockey game, the puck slid from the center line directly to the goal line in 1.5 seconds. The center line is 27 meters from the goal line. As the puck slid, it was chased by a hockey player skating at 9.5 meters per second. And the puck's velocity is 18 m/s.

What is Average velocity?

Average velocity can be defined as the average rate of change of displacement with respect to time. Average velocity is a measure for distance traveled in a given time.

We can calculate the average velocity by the rule

v = s/t (m/s)

where s is the displacement and t is the time

Mathematically,

speed = distance/ time

The puck traveled a distance of 27 m in 1.5 seconds

The speed of the puck is thus;

27/1.5 = 18 m/s

Thus, the puck's velocity can be calculated as 18 m/s.

Learn more about Velocity,

https://brainly.com/question/13372043

#SPJ2

A car driver sees a rabbit on the road. The driver makes an emergency stop after he sees the rabbit. Figure given shows the speed of the car from the time the driver sees the rabbit until the car stops. ) Calculate the distance that the car travels in the first 0.5 seconds.

2. A car of mass 1000 kg is moving with a velocity of 10 m/s. If the velocity-time graph for this car is a horizontal line parallel to the time axis, then the velocity of the car at the end of 25 s will be:

Answers

Answer:

car go vroom

Explanation:

What does this mean?


Pick one of the statistics shared that does not fit your current paradigm and share how you think you would feel if it was part of your own reality?

Answers

it's not letting me comment my original answer

I think it's saying

choose one of the options that doesn't take place in the current reality

then explain how things would be different and how it would feel if it was real life

choose something that doesn’t really apply to our current reality and how would it affect you if it was
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