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
deff fn [24]
3 years ago
5

A person lifts a 6.50kg box off the ground a vertical distance of 1.25m and then carries it horizontally across the room by 4.75

m.
1). What is the work done by the person on the box?

2). What is the work done by gravity on the box?

3). What is the potential energy of the box as the person walks horizontally?
Physics
1 answer:
victus00 [196]3 years ago
6 0
What type of reaction is being shown in this energy diagram
You might be interested in
If a car has a mass of 200 kg and produces a force of 500 N how fast was the car accelerate
Crank

Answer:

2.5

Explanation:

force/weight

5 0
4 years ago
Read 2 more answers
Answer each question yes or no. Assume the motions and currents mentioned are along the x axis and fields are in the y direction
Sergeeva-Olga [200]

(a)  Does an electric field exert a force on a stationary charged object? YES ( F = Eq)

(b)  Does a magnetic field do so?- NO ( F= qvB)  

(c)   Does an electric field exert a force on a moving charged object? YES

(d) Does a magnetic field do so? YES ( F = qvB)  

(e) Does an electric field exert a force on a straight current-carrying wire? (  NO)

(f) Does a magnetic field do so? Yes

(g) Does an electric field exert a force on a beam of moving electrons?          Yes  

(h) Does a magnetic field do so?    YeS

To know more about magnetic field    visit : brainly.com/question/10353944

#SPJ4

6 0
2 years ago
A large lightning bolt is observed to have a 19500 A current and move 36 C of charge. What was its duration?
Lynna [10]

Answer:

Its duration is 1.85*10⁻³ s or 1.85 ms

Explanation:

The intensity of electric current I is defined as the amount of electric charge Q (measured in Coulombs) that passes through a section of a conductor in each unit of time. The letter I is used to name the Intensity and its unit is the Ampere (A).

The intensity of electric current is expressed as:

I=\frac{Q}{t}

where:

I: Intensity expressed in Amps (A)

Q: Electric charge expressed in Coulombs (C)

t: Time expressed in seconds (s)

Being:

  • I= 19500 A
  • Q=36 C
  • t=?

Replacing:

19500 A=\frac{36 C}{t}

Solving:

19500 A*t= 36 C

t=\frac{36 C}{19500 A}

t= 1.85*10⁻³ s= 1.85 ms (being 1 s= 1,000 ms)

<u><em>Its duration is 1.85*10⁻³ s or 1.85 ms</em></u>

8 0
3 years ago
When thermal energy is added to an object what happens to the motion of the particles
Juli2301 [7.4K]

Answer:

The movement of thermal energy from a substance at a higher temperature to one at a lower temperature is called heat. When a substance is heated, it gains thermal energy. Therefore, its particles move faster and its temperature rises.

Explanation:

5 0
3 years ago
Read 2 more answers
An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kpa
AlladinOne [14]

Answer:

P= 30.87 kw

Explanation:

find the solution below

7 0
4 years ago
Read 2 more answers
Other questions:
  • Which is a sign of a chemical change?
    14·2 answers
  • friction force is the opposition to the motion of surfaces sliding across each other. what is one factor that affects the amount
    13·1 answer
  • Does the atomic number of an atom change?
    6·1 answer
  • A cyclist rode at a average speed of 15 mph for 15 minutes, how long was the ride?
    14·1 answer
  • A 50 kg wooden crate is slid across a flat surface for 60 meters by a force of 90.0 N. If the coefficient of sliding friction is
    6·1 answer
  • Neptune moves in an elliptical orbit with the sun at one of the foci. The length of half of the major axis is kilometers, and th
    15·1 answer
  • How might the daily activities of a scientist studying the stars differ from a chemist, physicist, or biologist?
    14·1 answer
  • What type of thermodynamic system is best to use to describe an operating automobile engine? A) Open O B) Dilated O C) Isolated
    8·1 answer
  • The sun's energy is probably produced by _____.
    11·2 answers
  • A street light is at the top of a 19 foot tall pole. A woman 5.25 feet tall walks towards the pole with a speed of 7ft/sec along
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!