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
o-na [289]
3 years ago
12

What can a machine do

Physics
2 answers:
Yuliya22 [10]3 years ago
8 0

Answer:

Machines can perform many tasks by using power as the source.

Production rates are faster when machines are used.

allochka39001 [22]3 years ago
5 0

Explanation:

You ask a good question and the answer could be as the following:

A simple machine uses one applied power to do action against a single load force. Ignoring friction losses, the work done on the load is equal to the work done by the applied force. The machine can increase the amount of production force, at the expense /cost of a relative decrease in the distance moved by the load.

Now,the question can be 'How can machines make the work easier?'

Machines make work easier by increasing the amount of force that is applied, increasing the distance over which the force is applied, or changing the direction in which the force is applied. ... That's because a machine doesn't change the amount of work and work equals force times distance.

<u>Some simple examples of machines:</u>

The inclined plane.

The lever.

The wedge.

The wheel and axle.

The pulley.

The screw.

Hope you're satisfied with my answer.. Good Luck!

You might be interested in
This is an electrical device that changes the voltage of electricity through the use of two set of coils
Fynjy0 [20]
Voltmeter is the right answer
3 0
3 years ago
Read 2 more answers
An ammeter with a resistance of 5.0 ohm is connected in series with a 3.0V cell and a lamp rated at 300 mA, 3V. Calculate the cu
Alex

Answer:

I = 0.2 A

Explanation:

Lamp is rated at 300 mA

I_lamp = 0.3 A

Voltage is; V = 3V

Thus; Resistance is given by;

R = V/I

R = 3/0.3

R = 10 ohms

Now, since the ammeter of 5 ohms is connected in series with the lamp. Thus equivalent resistance;

R_eq = 10 + 5

R_eq = 15 ohms

Ammeter current will be;

I = V/R_eq

I = 3/15

I = 0.2 A

3 0
3 years ago
Calculate a rate of cooling down of air from 80 C to 5C Show calculation. Give an answer in cubic meters per minute and cfm.
antoniya [11.8K]

Explanation:

Given that,

Rate of cooling of air

Initial temperature= 80°C

Final temperature = 5°C

We need to calculate

Using newton's law of cooling

\dfrac{dT}{dt}=c(T-T_{0})

\dfrac{dT}{dt}=c(\dfrac{T_{1}+T_{2}}{2}-T_{0})

Where, dT=T_{1}-T_{2}

Here, T =\dfrac{T_{1}+T_{2}}{2}

T_{0} = 25°C  (surrounding temperature)

dt = 1 minute

\dfrac{dT}{dt}=c(\dfrac{T_{1}+T_{2}}{2}-T_{0})

Put the value into the formula

\dfrac{80-5}{1}=c(\dfrac{85}{2}-25)

c=\dfrac{75}{17.5}

c=4.285\ cubic\ meter/minute

Hence, This is the required answer.

3 0
3 years ago
Matter is made up of tiny particles which can be atoms,molecules, or electrically charged particles called?.
yuradex [85]

Answer: alpha particle. i think

Explanation:

6 0
3 years ago
What are some examples of irreversible processes in nature?
castortr0y [4]

Answer:

Burning. When you burn something, it turns into ash you can't make that thing turn into what it was before.

8 0
4 years ago
Other questions:
  • A commuter train passes a passenger platform at a constant speed of 40.0 m/s. The train horn is sounded at its characteristic fr
    9·1 answer
  • How much do you have to increase the vertical distance to double the impact speed of an object?
    15·1 answer
  • In t-ball, young players use a bat to hit a stationary ball off a stand. The 140 g ball has about the same mass as a baseball, b
    10·1 answer
  • Julia and her musician friends were competing in the school talent show. Julia wanted her band to win the "most talented" award,
    8·2 answers
  • Time period of a simple pendulum is measured at Karachi. What change will occur in the time period, if it is measured on mount e
    14·1 answer
  • Discuss the effects of breaking a food chain.
    15·1 answer
  • What does the atomic number tell us about an atom of a certain element?
    5·1 answer
  • What is potential energy
    13·1 answer
  • A 1,100 kg car is traveling initially 20 m/s when the brakes are applied. The brakes apply a constant force while bringing the c
    9·1 answer
  • An object of mass 8kg is attached to massless string of length 2m and swum with a tangential velocity of 3 what is the tension o
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!