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horsena [70]
3 years ago
9

I need this quick!!!! In middle of a quiz

Physics
1 answer:
RUDIKE [14]3 years ago
6 0
Inelastic would be the answer to this question
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3. Nearsighted people can undergo a medical procedure called keratotomy to produce normal (or at least more-normal) vision. In t
Mademuasel [1]

Answer:

P= -1.83D

Explanation:

Given,

u=-6 m

v=-50 cm = - 0.5 m

the power of the lens

P = 1/f = 1/v = 1/u

P = 1/ -0.50 + 1/6

P = -1.83D

7 0
3 years ago
Examine the scenario.
frutty [35]
I Think The answer is d I hope it helps My friend Message Me if I’m wrong and I’ll change My answer and fix it for you
6 0
3 years ago
Read 2 more answers
The term used to describe the quantity of matter that a body possesses is:
barxatty [35]
The term used to describe the quantity of matter that a body possesses is mass.
7 0
3 years ago
A police car on the side of the road (at rest) uses a radar gun to catch speeders as they approach it. The frequency the radar g
oee [108]

Answer:

\Delta f = 1.49 \times 10^9 Hz

Explanation:

Apparent frequency that is received to the speeder is given as

f_1 = f_0\frac{v + v_o}{v}

f_1 = (8 \times 10^9)\frac{340 + v_o}{340}

here we know that

v_o = 65 mph = 29 m/s

now we have

f_1 = (8 \times 10^9)\frac{340 + 29}{340}

f_1 = 8.68 \times 10^9 Hz

now the frequency that is received back from the speeder is given as

f_2 = f_1\frac{v}{v- v_o}

f_2 = (8.68 \times 10^9}\frac{340}{340 - 29}

f_2 = 9.49 \times 10^9 Hz

So difference is the frequency is given as

\Delta f = 9.49 \times 10^9 - 8 \times 10^9

\Delta f = 1.49 \times 10^9 Hz

4 0
3 years ago
When an earthquake occurs, two types of sound waves are generated and travel through the earth. The primary, or P, wave has a sp
Zielflug [23.3K]

Answer:d=7.94\times 10^5\ m

Explanation:

Given

Speed of Primary wave v_1=8\ km/s

Speed of secondary wave v_2=4.5\ km/s

difference in timing of two waves are 77.2\ s

Suppose both travel a distance of d km then

t_1=\frac{d}{8}\quad \ldots (i)

t_2=\frac{d}{4.5}\quad \ldots (ii)

Subtract (ii) from (i)

\frac{d}{4.5}-\frac{d}{8}=77.2

d[\frac{1}{4.5}-\frac{1}{8}]=77.2

d[0.0972]=77.2

d=794.23\ km

d=7.94\times 10^5\ m

7 0
3 years ago
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