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
N76 [4]
3 years ago
12

An elevator does 9.75 x 10(4) J of work on a person riding up to another floor. How much energy does the person gain

Physics
1 answer:
Serjik [45]3 years ago
5 0

Answer:

9.75 x 10^4 J

Explanation:

Work done, W = 9.75 x 10^4 J

According to the work energy theorem, the change in kinetic energy is equal to the work done by all the forces.

So, here work done is 9.75 x 10^4 J so the change in kinetic energy is 9.75 x 10^4 J.

You might be interested in
If I = 2.0 A in the circuit segment shown below, what is the potential difference VB - VA?
Tom [10]

Answer:

10 V

Explanation:

The potential difference between two points is the amount of work required to carry a unit charge from one point to the other point. This would result in a potential difference between this two points.

The difference between the potential across two points B and A is V_{BA}=V_B-V_A

From the image attached:

V_B-V_A=10-10I+20\\\\But\ I = 2A,hence:\\\\V_B-V_A=10-10(2)+20\\\\V_B-V_A=10-20+20\\\\V_B-V_A=10\ V

7 0
2 years ago
As the shuttle bus comes to a sudden stop to avoid hitting a dog, it accelerates uniformly at -4.1 m/s^2 as it slows from 9.0 m/
zhuklara [117]

Acceleration  =  (change in speed) / (time for the change)

      - 4.1 m/s²  =  (-9 m/s)  /  (time for the change)

Time for the change  =  (-9 m/s) / (-4.1 m/s²)  =   2.2 seconds
3 0
3 years ago
Help me plssssssss cause I’m struggling
krok68 [10]

Answer:

I am pretty sure it is C

Explanation:

It can be found all over the universe

5 0
3 years ago
Read 2 more answers
Which of the following is not a fluid?
Alinara [238K]
The choices are confusing. Air, oil, and alcohol are fluids at any reasonable temperature. Dry cement is not.
4 0
3 years ago
Read 2 more answers
The ballistic pendulum is a device used to measure the speed of a projectile such as a bullet. The projectile of mass m is fired
My name is Ann [436]

Answer:

Relation between initial speed of bullet and height h is given as

v = \frac{m + M}{m}\sqrt{2gh}

Explanation:

As we know that system of block and bullet swings up to height h after collision

So we have

(m + M)gh = \frac{1}{2}(m + M)v_1^2

so we have

v_1 = \sqrt{2gh}

so speed of the block + bullet just after the impact is given by above equation

Now we also know that there is no force on the system of bullet + block in the direction of motion

So we can use momentum conservation

mv = (m + M)v_1

now we have

v = \frac{m + M}{m}\sqrt{2gh}

5 0
3 years ago
Other questions:
  • A wire has a current that flows to the right.
    11·2 answers
  • What is the name and degree of the line of longitude that passes through greenwich england
    13·2 answers
  • A good model of the solar system to present to elementary is the Ptolemaic model.
    15·1 answer
  • ٠Light bulb A is rated at 60 W and light bulb B is rated at 100 W. Both are designed to operate at 110 V. Which statement is cor
    6·1 answer
  • You are assigned the design of a cylindrical, pressurized water tank for a future colony on Mars, where the acceleration due to
    9·1 answer
  • Consider a ball thrown straight up in the air. At what position is its kinetic energy a maximum?
    9·2 answers
  • Which of the following types of lithospheric crusts collide to produce large mountains such as the Himalayan mountains?
    8·1 answer
  • 2 Points<br> Mechanical energy is the ___<br> of kinetic energy and potential energy.
    9·2 answers
  • Which of the following is NOT a characteristic of vibrations?
    7·2 answers
  • .・✫・゜・。.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!