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
Reika [66]
2 years ago
13

A B C D Plz help me.

Physics
1 answer:
Montano1993 [528]2 years ago
8 0

Answer:

The correct option is;

{}               Man doing most work   {}    Box gaining the most energy

D   {}                 Y                                          Q

Explanation:

The given parameters of the question are;

The distance the box P is pushed by the Man X = 0

The force the Man X applies to the box P = x N

The distance the box Q is lifted by the Man Y = h > 0 meters

The minimum force the Man Y applies to the box Q = W, the weight of the box

Work done = Force × Distance

Energy gained = Potential energy + Kinetic Energy = (Mass × Gravity × Height = Weight × Height  = W × h) + 1/2 × Mass × Velocity²

The final velocity of either box = 0 m/s (The boxes are at rest on the ground or the shelf)

Therefore, Kinetic energy = 0 J

The work done by Man X = 0 × x = 0 J

The energy gained by the box P = W × 0 = 0 J

The work done by Man Y = W × h = W·h J

The energy gained by the box P = W × h = W·h J

We have, the work done by the man Y = W·h J is more than the work done by the man X = 0 J

The energy gained by the box P = W·h J is more than the energy gained by the box Q = 0 J

Therefore, the correct option is D, Man doing the most work is Y, box gaining the most energy is Q.

You might be interested in
1ST ANSWER WILL BE BRAINLIEST
zloy xaker [14]
All of the above. They all right
4 0
3 years ago
Read 2 more answers
1. Which letter represents the location of the battery in this diagram?
My name is Ann [436]

Answer:

location of battery in this diagram is at A and location of switch is at B.

4 0
3 years ago
Read 2 more answers
A thin Nichrome wire connected to an ammeter surrounds a region of time-varying magnetic flux, and the ammeter reads 13 amperes.
Semenov [28]

Answer:

The current would be same in both situation.

Explanation:

Given that,

Current I = 13 A

Number of turns = 23

We need to calculate the induced emf

Using formula of induced emf is

\epsilon=NA\dfrac{dB}{dt}

For N = 1

\epsilon=A\dfrac{dB}{dt}

We need to calculate the current

Using formula of current

i=\dfrac{\epsilon}{R}

Put the value of emf

i=\dfrac{A\dfrac{dB}{dt}}{R}

Now, if the number of turn is 22 , then induced emf would be

\epsilon'=NA\dfrac{dB}{dt}

Then the current would be

i'=\dfrac{\epsilon'}{NR}

i'=\dfrac{NA\dfrac{dB}{dt}}{NR}

i'=\dfrac{A\dfrac{dB}{dt}}{R}

i'=i

Hence, The current would be same in both situation.

4 0
3 years ago
What is 800,000,000 meters in scientific notation
Paladinen [302]

8 x 10^8 = 800,000,000

In Scientific Notation, your goal is to get your the number you're multiplying by 10 (8 in this case) to be between 0 and 10.  Therefore, you would NOT have 80 x 10^7 because 80 is not between 0 and 10.

7 0
3 years ago
Read 2 more answers
How can you prove to be an initiator?
lozanna [386]
An initiator is someone who starts something. Example: She initiated the fight.
6 0
3 years ago
Other questions:
  • The specific heat of a liquid Y is 4.2 cal/g degrees Celsius. A sample grams of this liquid at 137 K is heated to 265K. The liqu
    15·1 answer
  • Which of the following is not true about the Global Positioning Systems (GPS)?
    13·1 answer
  • Use complete sentences to describe an extra-solar (exo) planet
    12·2 answers
  • Two points in a plane have polar coordinates (3.00 m, 20.0°) and (3.50 m, 140.0°). (a) Determine the Cartesian coordinates of th
    11·2 answers
  • When is thermal equilibrium achieved between two objects?
    11·2 answers
  • The diameter of earth is 12,756 km. How many times greater the suns diameter than the diameter of earth
    14·1 answer
  • What is the change in velocity of a 22-kg object that experiences a force of 15 N for
    15·1 answer
  • If it takes Jupiter 13 years to orbit the Sun. How long (in years) will it take Jupiter to go once around the sky as viewed from
    10·1 answer
  • Resolve the vector shown below into its components.
    13·1 answer
  • Two 2.0-mm diameter beads, c and d, are 12mm mm apart, measured between their centers. bead c has mass 1.0 g and charge 2.5nc nc
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!