3 years ago

Any change that alters a substance without changing it into another substance is an change

Physics

1 answer:

attashe74 [19]3 years ago

4 0

Physical change to be exact

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4. Derive<br>the relation, P= hd g

Sergeu [11.5K]

p=F/A

or,P=d×V×G/A (m=d×V)

or,p= d× A×h×g/A (A and A are cut)

or,P=d×H×G

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3 years ago

A light ray incident on a block of glass makes an incident angle of 50.0° with the normal to the surface. The refracted ray in t

Vladimir [108]

Answer:

The index of refraction of the glass is 1.3

Explanation:

Given data:

i = incident angle = 50°

r = refracted angle = 36.1°

The index of refraction according Snell´s law is:

$n=\frac{1*sini}{sinr} =\frac{1*sin50}{sin36.1} =1.3$

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4 years ago

Which statement is true? A Displacement can never be greater than distance. B Displacement can never be less than distance. C Di

qwelly [4]

Answer:

__________________

I think the answer is A.

__________________

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3 years ago

Give two conditions in which an object becomes weightless

Evgesh-ka [11]

Answer:

A body becomes weightless in a zero-gravity scenario and when a force is applied to a body that is equal and opposite to the force of gravity.

4 0

3 years ago

Read 2 more answers

A shopping cart is given an initial velocity of 4 m/s and experiences a constant acceleration of 4 m/s2. What is the magnitude o

NNADVOKAT [17]

Answer:

48m

Explanation:

Initial velocity = 4m/s
Acceleration = 4m/s²
Time = 4s
Displacement = ?

From Second equation of motion ,

$\longrightarrow$ s = ut + 1/2at²

$\longrightarrow$ s = 4*4 + 1/2*4*(4)² m

$\longrightarrow$ s = (16 + 2 * 16) m

$\longrightarrow$ s = ( 16 + 32 )m

$\longrightarrow$ s = 48 m

8 0

3 years ago