Physics

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New answer posted

5 months ago

0 Follower 4 Views

S
Syed Aquib Ur Rahman

Contributor-Level 10

In Physics, we need to know that the phase angle tells us the position of a point within one cycle of a wave. That is measured in radians. It tells you how much a wave is ahead or, behind the other. On the other hand, the initial phase (or phase constant) is the phase angle at time t=0. It tells us where the wave begins with its oscillation cycle.

New answer posted

5 months ago

0 Follower 3 Views

R
Raj Pandey

Contributor-Level 9

 0.02i * RG = 0.98i * 5

[in parallel, pot. Diff is same]

or, RG = 49 * 5

RG = 245 Ω

New answer posted

5 months ago

0 Follower 3 Views

R
Raj Pandey

Contributor-Level 9

Proton                electron

Charge :              +e                        -e

Wavelength :             λ                 λ

KE :                      KP          &

...more

New answer posted

5 months ago

0 Follower 3 Views

R
Raj Pandey

Contributor-Level 9

η = 1 4 o r 2 5 %

Δ T s i n k = 5 8 ° C ( i e d e c r e a s e d )

η ' = 1 2 o r 5 0 %

Tsin k =?

As we know, the efficiency for a reversible engine is given by :

η = 1 T 2 T 1 [ T 2 s i n k t e m p e r a t u r e ]

On comparing both, we get

T 2 = 3 4 T 1 & ( T 2 5 8 ° C ) = T 1 2

T 2 = 1 7 4 ° C

New answer posted

5 months ago

0 Follower 9 Views

R
Raj Pandey

Contributor-Level 9

dist l1 l2 = 2 5 a

= 2 * 2.3 a

= 4.6 a

New answer posted

5 months ago

0 Follower 2 Views

R
Raj Pandey

Contributor-Level 9

at point P,

= K E P + P E P

= 1 2 m v P 2 + { G M 1 m ( r / 2 ) G M 2 m r / 2 }

at infinity (ie for escaping from both masses)

v P = 4 G ( M 1 + M 2 ) r

New answer posted

5 months ago

0 Follower 4 Views

R
Raj Pandey

Contributor-Level 9

h = 1 2 g t 2

or x = v 2 h g

So, x = vt

or, x = v 2 h g

So, dist of man from helicopter is

h 2 + x 2 = h 2 + v 2 2 h g = 2 v 2 h g + h 2

New answer posted

5 months ago

0 Follower 2 Views

A
alok kumar singh

Contributor-Level 10

Histamine stimulate the secretion of HCl

 

New answer posted

5 months ago

0 Follower 2 Views

R
Raj Pandey

Contributor-Level 9

? = M I

Also

? = B . A = B A c o s 0 °

= 4 { μ 0 l 4 π ( b 2 ) [ 1 2 + 1 2 ] } . a 2
 
? = 4 * μ 0 l 2 π b 2 a 2

And on comparing ? with

? = M I

μ 0 4 π 8 2 a 2 b = M

New answer posted

5 months ago

0 Follower 1 View

S
Syed Aquib Ur Rahman

Contributor-Level 10

The speed of a transverse wave depends on the intrinsic properties of the medium it propagates through. These could be elastic and inertial properties. For a transverse wave on a string, we need to know factors such as tension (a common force) in the string, and its linear mass density. 

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