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3 years ago

Explain what is weight? How is it different from mass?

Physics

2 answers:

malfutka [58]3 years ago

7 0

Answer:

he mass is essentially "how much stuff" is in an object. Weight = There is a gravitational interaction between objects that have mass. If you consider an object interacting with the Earth, this force is called the weight.

Explanation:

Your mass is the same no matter where you go in the universe; your weight, on the other hand, changes from place to place.

velikii [3]3 years ago

3 0

Answer:

The difference between mass and weight is that mass is the amount of matter in a material, while weight is a measure of how the force of gravity acts upon that mass. Mass is the measure of the amount of matter in a body. Mass is denoted using m or M.

Explanation:

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If you push a crate horizontally with 100 N across a 10 m factory floor and the friction between the crate and the floor is a st

erik [133]

Answer:

300 J

Explanation:

First of all, we need to calculate the net force acting on the crate, which is given by:

$F_{net} = F-F_f$

where

F = 100 N is the horizontal push

$F_f = 70 N$ is the force of friction

Substituting,

$F_{net}=100 - 70 = 30 N$

Now we can calculate the net work done on the crate:

$W=F_{net}d$

where

d = 10 m is the displacement

Substituting,

$W=(30)(10)=300 J$

According to the work-energy theorem, the kinetic energy gained by the crate is equal to the work done on it: therefore, the answer is 300 J.

4 0

3 years ago

Two point charges are brought closer together, increasing the force between them by a factor of 20. By what factor was their sep

olga55 [171]

The separation between them is $\frac{r}{\sqrt{20} }$

Concept :

If the force increases, distance between charges must decrease. Force is indirectly proportional to the distance squared.

Given,

Two point charges are brought closer together, increasing the force between them by a factor of 20.

Original force is

F = $\frac{kq_{1} q_{2} }{r^{2} }$ -------- ( 1 )

Here, $q_{1} , q_{2}$ are charges and r is the distance between them

New force F' = $\frac{kq_{1q_{2} } }{r'^{2} }$ ----------- (2 )

Divide ( 1 ) and ( 2 )

$\frac{F'}{F}$ = $\frac{\frac{kq_{1}q_{2} }{r'^{2} } }{\frac{kq_{1}_{2} }{r^{2} } }$

20 = $\frac{r^{2} }{r'^{2} }$

r' = $\frac{r}{\sqrt{20} }$

Given that force between them are increasing and therefore distance between them decrease by $\frac{r}{\sqrt{20} }$

Learn more about two point charges here : brainly.com/question/24206363

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8 0

2 years ago

What is a lifestyle?the clothes and posessions that you purchase,one or more options that require a decision,people and places t

MAXImum [283]

Life style are habits and standards that shape how you live

4 0

4 years ago

Read 2 more answers

One property that makes electromagnetic waves differ from other types of waves is that they can

Flauer [41]

travel through a vacuum at the speed of light. Other waves need a medium; sound waves need molecules that vibrate.

5 0

4 years ago

A projectile is fired with a velocity of 22 m/s at an angle of 25°. What is the vertical component of the velocity?

7nadin3 [17]

Answer:

Vertical component of velocity is 9.29 m/s

Explanation:

Given that,

Velocity of projection of a projectile, v = 22 m/s

It is fired at an angle of 22°

The horizontal component of velocity is v cosθ

The vertical component of velocity is v sinθ

So, vertical component is given by :

$v_y=v\ sin(25)$

$v_y=22\ m/s\times\ sin(25)$

$v_y=9.29\ m/s$

Hence, the vertical component of the velocity is 9.29 m/s

3 0

4 years ago