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vladimir1956 [14]
2 years ago
12

How did Robert Whittaker change classification?

Physics
2 answers:
larisa [96]2 years ago
7 0
He reorganized life into five kingdoms
lorasvet [3.4K]2 years ago
6 0

Answer:

d

Explanation:

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X=16.2 cos(4.68t+0.420). What is the velocity of the oscillator at t=7.97 s?
pochemuha

Answer:

If using radians: 16.2

If using degrees: 12.8

Don't forget your units

Explanation:

I assume that x represents the velocity?

If so, then just substitute the value t and solve

7 0
3 years ago
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A dolphin is able to tell in the dark that the ultrasound echoes received from two sharks come from two different objects only i
Vlad1618 [11]

Answer:

a) Wavelength of the ultrasound wave = 0.0143 m <<< 3.5m, hence its ability is not limited by the ultrasound's wavelength.

b) Minimum time difference between the oscillations = Period of oscillation = 0.00952 ms

Explanation:

The frequency of the ultrasound wave = 105 KHz = 105000 Hz. The speed of ultrasound waves in water ≈ 1500 m/s. Wavelength = ?

v = fλ

λ = v/f = 1500/105000 = 0.0143 m <<< 3.5m

This value, 0.0143m is way less than the 3.5m presented in the question, hence, this ability is not limited by the ultrasound's wavelength.

b) Minimum time difference between the oscillations = The period of oscillation = 1/f = 1/105000 = 0.00000952s = 0.00952 ms

Hope this helps!

6 0
3 years ago
How would it be possible for an object to be traveling with a constant speed and still accelerating?
lys-0071 [83]
Yeah!! It's possible for an object by changing it's direction....
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How do you think overpumping groudwater is related to the formation of sinkholes?
vladimir2022 [97]
Ground water keept the ground at a stable level when it is gone the cavern it was in has no support and is at risk of callaps
3 0
3 years ago
a thermometer has its steam marked in millimetre instead of degree celsius. The lower fixed points is 180 mm calculate the tempe
Nady [450]

Answer:hi

Explanation:

4 0
3 years ago
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