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3 years ago

When Jackson throws a baseball in a straight path what two forces causes the ball to eventually stop moving

Physics

1 answer:

Aloiza [94]3 years ago

5 0

Gravity and wind resistence

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If the average frequency emitted by a 160 W light bulb is 5.00 1014Hz and 10.0 of the input power is emitted as visible light ap

bearhunter [10]

Answer:

The value is $\frac{n}{t} = 4.83 *10^{19} \ photons / s$

Explanation:

From the question we are told that

The power rating of the bulb is $P = 160 \ W$

The frequency is $f = 5.00 *10^{14} \ Hz$

The percentage of the input power that is emitted as visible light is $\eta = 10\% = 0.10$

Generally the amount of power emitted as visible light is mathematically represented as

$P_l = 0.10 * P_i$

=> $P_l = 0.10 *160$

=> $P_l = 16 \ W$

Generally the amount of energy emitted as light is mathematically represented as

$E = n * h * f$

Here n is the number of photon , h is the Planks constant with value $h = 6.625*10^{-34} \ J\cdot s$

Generally this power emitted as visible light is mathematically represented as

$P_l = \frac{E}{t}$

=> $P_l = \frac{E}{t} = \frac{nhf}{t}$

=> $\frac{n}{t} = \frac{P_l }{hf}$

=> $\frac{n}{t} = \frac{16 }{6.625 *10^{-34}* (5.00*10^{14})}$

=> $\frac{n}{t} = 4.83 *10^{19} \ photons / s$

4 0

3 years ago

I WILL GIVE BRAINLIEST....<br>Determine the value of F...

aleksley [76]

F should be 10. If The Whole top is 50cm, then we should subtract 10n and 30n which gives us 10.

Or it could be 15 if both top and bottom are 25. 10+15= 25.

6 0

3 years ago

What is this question

lara31 [8.8K]

Answer:

Its the last one

Explanation:

It is the last one

3 0

3 years ago

Read 2 more answers

What happens to the speed of molecules as temperature increases

rusak2 [61]

Then the the speed of the molecules also increase

6 0

4 years ago

Read 2 more answers

Four identical resistors have 12 ohm each. Find the equivalent resistance Req when : (a) all four of them are connected in serie

Elanso [62]

Answer:

(a): When the four resistors are connected in series the equivalent resistor value is Req= 48Ω

(b): when the four resistors are connected in parallel the equivalent resistor value is Req=3Ω

Explanation:

R=R1=R2=R3=R4= 12Ω

(a)

Req= R1+R2+R3+R4

Req= 48 Ω

(b)

Req= (1/12 * 4)⁻¹

Req= 3 Ω

6 0

3 years ago