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3 years ago

Write a difference between force and work?

2 answers:

4 0

Force is defined as the rate of change of momentum (momentum is mass multiplied by velocity) with respect to time. Work is the product of displacement and the component of force in the direction of displacement. If work is done, then the kinetic energy of an object changes.

Nesterboy [21]3 years ago

3 0

Answer:

force is a derived quantity

work is a fundamental quantity

2.Force is measured in Newton why work is measured in Newton per seconds (N/s)

Explanation:

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A 1.5-kg block slides at rest starts sliding down a snow-covered hill Point A, which has an altitude of 10 m. There is no fricti

damaskus [11]

Answer:

the speed of the block when it reaches point B is 14 m/s

Explanation:

Given that:

mass of the block slides = 1.5 - kg

height = 10 m

Force constant = 200 N/m

distance of rough surface patch = 20 m

coefficient of kinetic friction = 0.15

In order to determine the speed of the block when it reaches point B.

We consider the equation for the energy conservation in the system which can be represented by:

$\dfrac{1}{2}mv^2=mgh$

$\dfrac{1}{2}v^2=gh$

$v^2=2 \times g \times h$

$v^2=2 \times 9.8 \times 10$

$v=\sqrt{2 \times 9.8 \times 10$

$v=\sqrt{196$

v = 14 m/s

Thus; the speed of the block when it reaches point B is 14 m/s

7 0

3 years ago

Explain how a common housecat gets “worms.”eplain(science)

OLga [1]

Answer:

Cats most commonly contract worms after coming into contact with parasite eggs or infected feces. A cat may walk through an area with eggs or infected feces, and since cats are often such fastidious groomers, they will then ingest the eggs or fecal particles as they clean their fur and feet.

Explanation:

this is the only thing in my book hope it helps

5 0

3 years ago

Audio frequency range of a human ear is 20Hz - 20000 Hz. Express the range in terms of time period ? Answer needed urgently. Pl.

Feliz [49]

Using the term c in this case is a little confusing. It is more generic to use a general velocity, v. That way, in this case, we know to use the speed of sound.

wavelength*frequency=v

wavelength_20Hz = (345 m/s)/(1/20s)

<span>wavelength_20kHz = (345 m/s)/(1/20000s)

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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5 0

3 years ago

If the applied force (F) is 14 N and the frictional force (f) is 3 N, what would the acceleration be on this 3.5 kg box?

Helga [31]

Answer:a = F/m so

11/3.5 times= 3.14 m/s

Explanation:

4 0

2 years ago

A light bulb connects to a battery. A second, identical light bulb connects in parallel to the first light bulb. The connecting

mr Goodwill [35]

Answer:d

Explanation:

Suppose V is the voltage of battery and R is the resistance of bulb

so Power drop for initial stage

$P_1=\frac{V^2}{R}$

When another identical bulb of same resistance is applied in parallel so voltage Drop across both the resistor will be same i.e. V

so Power consumed $P_2=\frac{V^2}{R}$

so there is no change in power and hence no dip in brightness

8 0

3 years ago

Write a difference between force and work? ​

Write a difference between force and work?