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2 years ago

5

A wave travels from Medium 1 (light like slinky) into Medium 2 (heavy and rigid like snakey). Which property or properties of th

e wave is the same for both media

1 answer:

hjlf2 years ago

4 0

Answer:

ohhhhhhhhhhhhhhhhjhhhhhhh

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Light-rail passenger trains that provide transportation within and between cities speed up and slow down with a nearly constant

snow_lady [41]

Answer:

26m/s

Explanation:

Assuming that the acceleration is constant, we can start by calculating the train speed when it's free of the congested area:

$a = \frac{\deltav}{\deltat} = \frac{12 - 5}{8} = \frac{7}{8} = 0.875 m/s^2$

Then with the same acceleration we can find out the final speed:

$v = v_0 + at = 12 + 0.875*16 = 26m/s$

3 0

2 years ago

Based on the data table, find the acceleration and then predict the velocity at the time 3.5 seconds.

Gala2k [10]

The answer is B. Idk how to explain. Choose b.

3 0

2 years ago

Read 2 more answers

Question 3 of 25 What is the period of a wave that has a frequency of 3 Hz?

Katarina [22]

Answer:

use the formula

Explanation:

F = 1/ T

where F stands for frequency and T stands for period

sub in 3 Hz into frequency

3 = 1/T

0.333 = T

or in a fraction form

1/ 3

hope this helps

8 0

3 years ago

Technician A says that knowing if there are any stored diagnostic trouble codes (DTCs) may be helpful when checking for related

Darina [25.2K]

Answer:

Technician A only

Explanation:

Technician A says that knowing if there are any stored diagnostic trouble codes (DTCs) may be helpful when checking for related technical service bulletins (TSBs). Technician B says that only a factory scan tool should be useWhich technician is correct?

DTC's, or Diagnostic Trouble Codes, are used by automobile manufacturers to detect problems related to the vehicle. ... The first number in the DTC indicates whether the code is an SAE generic code

tsb are recommended techniques for repairing a vehicle. the manufactures of vehicles make this available so the technicians can work and make reference to it

5 0

2 years ago

A small earthquake starts a lamppost vibrating back and forth. The amplitude of the vibration of the top of the lamppost is 7.0

krok68 [10]

Answer:

(a) T=6.07s

(b) $x_{max|4.0s}=3.62cm$

Explanation:

For Part (a)

The initial amplitude is given as A=7.0 cm

Apply the equation $x_{max}(t)=Ae^{-t/T}$ with $x_{max}(7.6s)=2.0cm$ we have:

$x_{max}(t)=Ae^{-t/T}\\2.0cm=(7.0cm)e^{-7.6s/T}\\T=-\frac{7.6s}{ln(\frac{2.0cm}{7.0cm} )} \\T=6.07s$

For Part (b)

Apply $x_{max}(t)=Ae^{-t/T}$ with t=4.0s and T=6.07s we have

$x_{max}(t)=Ae^{-t/T}\\x_{max}(4.0s)=(7.0cm)e^{-4.0/6.07}\\x_{max|4.0s}=3.62cm$

8 0

3 years ago