2 years ago

Helppp!!! what's the answer to this??

Physics

1 answer:

riadik2000 [5.3K]2 years ago

4 0

Answer:

(b)

Explanation:

The voltage always lags the current by 90°, regardless of the frequency.

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Choose the correct answer from the given alternatives

Black_prince [1.1K]

Answer:

Explanation:

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8 0

3 years ago

PLEASE HELP!!!

Simora [160]

I only know what number 1. is and its Mechanical Energy.

8 0

3 years ago

A newly discovered particle, the SPARTYON, has a mass 945 times that of an electron. If a SPARTYON at rest absorbs an anti-SPART

Gennadij [26K]

Answer:

$\nu =1166\times 10^{20}Hz$

Explanation:

We have given the rest mass of SPARTYON = 945 times of mass of electron

We know that mass of electron $=9.11\times 10^{-31}kg$

So mass of SPARTYON $=945\times 9.11\times 10^{-31}=8608.95\times 10^{-31}kg$

Speed of light $c=3\times 10^8m/sec$

According to Einstein equation energy is given by

$E=mc^2=8608.95\times 10^{-31}\times (3\times 10^{8})^2=77480.55\times 10^{-15}j$

Now according to planks's rule

Energy is given by

$E=h\nu$ , here h is plank's constant $h=6.6\times 10^{-34}$

So $77480.55\times 10^{-15}=6.6\times 10^{-34}\nu$

$\nu =1166\times 10^{20}Hz$

3 0

3 years ago

Why current remains same in series combination of resistors in all resistors and p.d. remains different?

IgorC [24]

Current at all points of a series circuit must be the same, because there's no place in the circuit where electrons are being manufactured, and no place where they're leaking out and falling on the floor. The nimber of electrons that leaves the loop is the same number that entered it. I'm not sure what is nmeant by "p.d. remains different" .

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3 years ago

If you could travel with speed of light (3.0e5 km/s) it would take only 2.5 minutes to reach venus. how far is venus from earth

motikmotik

D=S/T ,S=3.0e5km/s × 2.5min×60
D=4.5×e6km

7 0

3 years ago