1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vsevolod [243]
3 years ago
13

What is the magnitude of the momentum change of two gallons of water (inertia about 7.3 kg ) as it comes to a stop in a bathtub

into which it is poured from a height of 2.0 m ?
Physics
1 answer:
aliya0001 [1]3 years ago
8 0

We know that the change in momentum is equals to the product of force and time that is impulse (  F \times t). Therefore, we need to determine the value of that the water is in air by using the second equation of motion,

s=ut+\frac{1}{2} gt^2

Here, u is initial velocity which is zero.

s= \frac{1}{2} gt^2 \\\\ t = \sqrt{\frac{2s}{g} }.

Thus, impulse

= F \times \sqrt{\frac{2s}{g} }

From Newton`s second law,

F =mg

Therefore, impulse

= mg \times \sqrt{\frac{2s}{g} } = m \sqrt{2gs}

Given,  m = 7.3 kg and s = 2.0 m

Substituting these values, we get

Change in momentum = impulse  

= 7.3 \ kg \sqrt{2 \times 9.8 \ m/s^2 \times 2.0 \ m } = 45 .7 \ Ns.

You might be interested in
What is happening in the brain, because people are so rude?
Masteriza [31]
That's a good question.
8 0
3 years ago
Read 2 more answers
Which two criteria are least important for engineers to consider when developing a process to produce sulfur trioxide? A. The pr
VikaD [51]

Answer: it should be c and d

Explanation:

4 0
3 years ago
Read 2 more answers
What is the difference between prejudice and discrimination?
adoni [48]

Prejudice has to do with the inflexible and irrational attitudes and opinions held by members of one group about another, while discrimination refers to behaviors directed against another group. Being prejudiced usually means having preconceived beliefs about groups of people or cultural practices.

Explanation:

6 0
3 years ago
Read 2 more answers
Select the correct answer.
Stels [109]

Answer:

An electric bell is placed inside a transparent glass jar. The bell can be turned on and off using a switch on the outside of the jar. A vacuum is created inside the jar by sucking out the air. Then the bell is rung using the switch. What will we see and hear?

A.

We’ll see the bell move, but we won’t hear it ring.

B.

We won’t see the bell move, but we’ll hear it ring.

C.

We’ll see the bell move and hear it ring.

D.

We won’t see the bell move or hear it ring.

E.

We’ll see the sound waves exit the vacuum pump.

Explanation:

so, the answer to the question is

A.

We'll see the bell move, but we won’t hear it ring.

5 0
3 years ago
Read 2 more answers
When making a turn, do not have the steering wheel turned in the direction of the turn before beginning the turning maneuver.a)
RideAnS [48]

Answer:

a) True.

Explanation:

If you turn the wheel in the direction of the turn before beginning the turning maneuver then it's possible that there might be not enough space available for turning and also if you are waiting for the traffic to get clear with rear  ended then it will get pushed forward onto the coming traffic.

7 0
3 years ago
Other questions:
  • Give me three examples of fossil fuel-based energy sources pls
    11·1 answer
  • When water molecules are disappearing into the air, there is a net _______?
    12·1 answer
  • Which of the following solutions should be chosen to help restore an ecosystem naturally? A. reintroducing an animal to the ecos
    11·1 answer
  • The oxygen isotopic composition of ocean water is measured by determining the ratio of 18O to 16O, expressed as 18O/16O. The iso
    11·1 answer
  • An object of mass 10kg is released from rest 1000m above the ground and allowed to fall under the influence of gravity. Assuming
    13·1 answer
  • A brisk walk has a constant speed of 1.7 m/s. how far could a person walk in 160 seconds?
    11·1 answer
  • Please help me with physics a very nice person
    10·1 answer
  • What do scientists use to measure force?
    14·2 answers
  • An ideal step-down transformer is needed to reduce a primary voltage of 120 V to 6.0 V. What must be the ratio of the number of
    8·1 answer
  • A rubber ball and a steel ball are dropped from the same height onto a concrete floor. They have the same mass, and lets assume
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!