Explain how machines make work easier if they still require that the same amount of work be done.

Answers

Answer 1

Answer: Machines make work easier even if they still require the same amount of work to be done. We humans get tired because we do not have constant source of energy for the work to be done.Machines have a constant source of energy such as electricicity. Humans too will work at the same rate without getting tired if they are also provided with constant energy.

Answer 2

Answer: well machine do not feel pain of course and us humans and people do feel pain of course but if we fell pain and get hurt it slows down the process but machines on the other hand can keep going until the life source runs out. if i helped plz make mine the best

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An electromagnetic wave has a frequency of 2.90 × 1014 Hz. What is the wavelength of the wave? Question 17 options: 1.03 × 10–6 m 9.60 × 10–7 m 8.70 × 1022 m 2.61 × 10–21 m

Answers

Answer:

Wavelength of the wave is $1.034 * 10^(-6) m$

Explanation:

Wavelength of the wave is given by

$\lambda=(v)/(f) \n$

Here,

$f=2.90* 10^(14) Hz\nv=3* 10^8 m/s$

wavelength is

$\lambda=(v)/(f) \n\lambda=(3 * 10^8)/(2.90* 10^(14))\n\lambda=1.034 * 10^(-6) m$

Option A is correct

According to Charles's law whenever the temperature of a gas at constant pressure decreases the volume increases

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I believe the answer is false

The answer is false.

Momentum is distancemassforcetime times velocity.

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Answer: Momentum is mass times velocity (P = m*v)

Explanation: Momentum is defined as the "amount of movement"

The momentum of an object moving can be calculated as:

P = m*v

where P is momentum

m is the mass of the object

v is the velocity of the object.

Notice that momentum has a given direction (the same of the velocity) so it is a vector.

p=mv
Momentum is mass times velocity

How do you find an object's mass on an acceleration vs. force graph?

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Newton's 2nd law of motion is: Force= (mass) x (acceleration).

Divide each side by 'acceleration' and you have: Mass = (force) / (acceleration).

-- At any point on the graph, read off the force and the acceleration.
-- Divide the force by the acceleration.
-- The quotient is the mass.

It should be constant, unless the moving object is something like a rocket,
which is constantly burning fuel and reducing its mass.

Which of the items has the least inertia while at rest? A. penny. B. airplane. C. frog. D. dog.

Answers

Answer:

A penny

Explanation:

All nuclear energy results in the rapid release of energy, such as in atomic bombs. a. True
b. False

Answers

It is true that all nuclear energy results inthe rapid release of energy, such as in atomic bombs. A process wherein the atom’s nucleusis further divided into two nuclei, that is, fission products, is callednuclear fission. This happens when the nuclei of radioactive elements (e.g.Uranium or Plutonium isotopes) are able to attract neutrons. Because theseisotopes’ nuclei are unstable, an addition to their energy causes them todivide into new pieces of neutron. In nuclear reactors, fission occurs when thepower plant gathers heat from a steam in a physical process. Nuclear reactorsare designed to sustain nuclear chain reactions.

Answer:

FALSE

Explanation:

verified answer***

Nuclear energy is released from an atom through one of two processes: nuclear fusion or nuclear fission. In nuclear fusion, energy is released when the nuclei of atoms are combined or fused together. But isn't rapidly release

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