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mafiozo [28]
3 years ago
15

Which term defines the energy of motion?

Physics
1 answer:
Korvikt [17]3 years ago
4 0
D kinetic energy✨
nnnnnnnnnnnnbbbhhbbbbbbb
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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
Phys-1A Horizontal Practice 2
krek1111 [17]
So basically you, then, finally, you
7 0
2 years ago
The nose of an ultralight plane is pointed south, and its airspeed indicator shows 28 m/s . the plane is in a 18 m/s wind blowin
leva [86]
<span>Here I think you have to find the velocity in x and y components where x is east and y is north
 So as air speed indicator shows the negative speed in y component and adding it in
  air speed while multiplying with the direction component we will get the velocity as velocity is a vector quantity so direction is also required
 v=-28 m/s y + 18 m/s (- x/sqrt(2) - y/sqrt(2))
 solving
  v= -12.7 m/s x-40.7 m/s y
 if magnitude of velocity or speed is required then
  speed= sqrt(12.7^2 + 40.7^2)
 speed= 42.63 m/s
 if angle is asked
  angle = arctan (40.7/12.7)
 angle = 72.67 degrees south of west</span>
6 0
4 years ago
A rectangular loop of copper wire of resistance r has width a and length
sergij07 [2.7K]

Answer:

Explanation:

b = b₀ cos ω t

When t = 0 , magnetic field will be b₀ and positive or directed into the page . This is the maximum value of magnetic field. As times goes ahead , magnetic field decreases so magnetic flux decreases . The induced emf or current will be such that it will  opposes this reduction of magnetic field. Hence , current in clockwise direction will be  generated in the coil which will generate magnetic flux into the paper.

In this way  current will be induced  clockwise.

4 0
3 years ago
Where would a car traveling on a roller coaster have the most kinetic energy ? and why?
goldenfox [79]

Answer:

As the car travels up the coaster it is gaining potential energy.

Explanation:

Because It has the greatest in amount of potential energy at the top of the coaster. when the car travels down the roller coaster it obtains speed and kinetic energy.

4 0
3 years ago
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