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torisob [31]
3 years ago
12

The screens show two sound waves that last the same amount of time. Which wave has a higher frequency? Explain your answer

Physics
1 answer:
SOVA2 [1]3 years ago
8 0

Answer:

Wave 1

Explanation:

Its a High frequency waves the high waves are closer to each other thme the lower ones

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What are the strengths and limitations of the doppler and transit methods? What kind of planets are easiest to detect with each
Arturiano [62]

\huge\mathfrak\red{✔Answer:-}

Strength: able to detect planets in a wide range of orbits, as long as orbits aren't face on

Limitations: yield only planet's mass and orbital properties

3 0
4 years ago
A proton starting from rest travels through a potential of 1.0 kV and then moves into a uniform 0.040-T magnetic field directed
Hatshy [7]

Answer:

0.114m

Explanation:

From the general expression for the radius of the proton's resulting orbit, we have

r=\frac{mv}{qB}

where q is is the charge of the proton 1.6*10^{-19}C

m is the mass of the proton  1.67*10^{-27}kg

B is the magnetic field  0.040T

and v i the speed.

to determine the speed, we use the expression

Kinetic Energy=qV

1/2mv^{2}=qV

where <em>V  </em>is the voltage value i.e 1.0kv

and v is the speed

Hence, from simple rearrangement we have the speed v to be

v=\sqrt{\frac{2Vq}{m}} \\

if we substitute value, we have

v=\sqrt{\frac{2*1000*1.6*10^{-19} }{1.67*10^{-27}}} \\

carrying out careful arithmetic we arrive at

v=4.38*10^{5} m/s.

using the value for the speed in the expression for the radius of the orbit as stated earlier, we have

r=\frac{1.67*10^{-27}*4.38*10^{5}}{1.6*10^{-19}*0.04} \\

r=0.114m

7 0
3 years ago
a swimmer can develop a maximum speed of 8m/s when he is swimming in a pool. calculate the time that is required to pass the dis
8090 [49]

Answer:  

2

Explanation:

6 0
3 years ago
A boat of mass 250 kg is coasting, with its engine in neutral, through the water at speed 1.00 m/s when it starts to rain with i
bija089 [108]

Answer:

v_o\approx0.7059\ m.s^{-1}

Explanation:

Given:

mass of the boat, m=120\ kg

uniform speed of the boat, v=1\ m.s^{-1}

rate of accumulation of water mass in the boat, \dot m=100\ kg.hr^{-1}

time of observation, t=0.5\ hr

The mass of the boat after the observed time:

m_o=m+\dot m\times t

m_o=120+100\times 0.5

m_o=170\ kg

<u>Now using the conservation of momentum:</u>

m.v=m_o.v_o

120\times 1=170\times v_o

v_o\approx0.7059\ m.s^{-1}

4 0
3 years ago
After using a thermometer where should it be placed
Oxana [17]
After using a thermometer, it is best to wash it so that the next person who is going to use it won't get the flu or illness that the person who used it before. In washing it, it is best to wash it, rinse it thoroughly, sanitized it with the use of alcohol to remove excess germs and bacteria that could be still stuck on it and lastly, air dry. When dried, placed it on its proper case to avoid it from breaking or being contaminated.
7 0
3 years ago
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