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Vikki [24]
3 years ago
14

How could you determine the instantaneous speed during a trip?

Physics
2 answers:
belka [17]3 years ago
8 0
The moving object has both velocity and speed it shows how fast an object is moved instantaneous speed is the motion rate of an object at particular time period of a moment
Fiesta28 [93]3 years ago
6 0
Look at your speedometer for say, a couple of seconds. Depends on whether or not you are moving on average at a constant speed (speedo won't change much) or whether you're in a polluting traffic jam/queue in which case the speedo will go up and down like a yo yo. to determine the speed, you'd probably need to plot the speed on the speedo against the times at which the speedo speeds were read from the speedo.
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Two loudspeakers emit sound waves along the x-axis. The sound has maximum intensity when the speakers are 20 cm apart. The sound
krek1111 [17]

Answer:

Explanation:

The path length difference = extra distance traveled

The destructive interference condition is:

\Delta d = (m+1/2)\lambda

where m =0,1, 2,3........

So, ←

\Delta d = (m+1/2)\lamb da9/tex]so [tex]\Delta d = \frac{\lambda}{2}

⇒ λ = 2Δd = 2×10 = 20

4 0
2 years ago
Determine whether the center of mass of the system consisting of the earth and moon lies inside or outside the earth. Assume tha
tester [92]

Answer:

R_cm = 4.66 10⁶ m

Explanation:

The important concept of mass center defined by

         R_cm = 1 / M   ∑  x_i m_i

where M is the total mass, x_i and m_i are the position and masses of each body

Let's apply this expression to our case.

Let's set a reference frame where the axis points from the center of the Earth to the Moon,

       R_cm = 1 / M (m_earth 0 + m_moon d)

the total mass is

      M = m_earth + m_moon

     

the distance from the Earth is zero because all mass can be considered to be at its gravimetric center

let's calculate

      M = 5.98 10²⁴ + 7.35 10²²

      M = 6.0535 10₂⁴24 kg

we substitute

      R_cm = 1 / 6.0535 10²⁴ (0 + 7.35 10²² 3.84 )

      R_cm = 4.66 10⁶ m

4 0
3 years ago
1. Which of the following is correct about the sampling distribution of the sample mean
joja [24]

Answer:

In my opinion I think that the answer is C sorry If I get this wrong.

5 0
3 years ago
Plzzzzzzzzzzzzzzzzzz helpppp
satela [25.4K]
It’s c, the toy car changes direction
7 0
3 years ago
Read 2 more answers
Atom: Finally, there is the ever-so-tiny atom. It takes extremely powerful microscopes to view
katovenus [111]
A

That should be correct!!!
6 0
3 years ago
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