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Georgia [21]
3 years ago
6

An object speed is 7.2 m/s and its momentum is 360 kg m/s what is mass of object

Physics
1 answer:
MAXImum [283]3 years ago
8 0
Momentum = mass × velocity
360 = mass × 7.2
mass = 360/7.2 = 50 kg

Hope it helped!!
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The musical tone a piano has a frequency of 346HZ and a wavelength of 1.3 M what is the speed of the sound
prohojiy [21]

Answer:

v= 449.8 m/s

Explanation:

Given data

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v= f \lambda\\\\

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Time (s)
olya-2409 [2.1K]

The moon orbiting the Earth

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3 years ago
Suppose you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above i
SCORPION-xisa [38]

Answer:

The value is  r =  5.077 \  m

Explanation:

From the question we are told that

   The  Coulomb constant is  k =  9.0 *10^{9} \  N\cdot  m^2  /C^2

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Generally for the electron to be held up by the force gravity

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       Electric force on the electron  =  The  gravitational Force

i.e  

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         \frac{9*10^9 *  (1.60 *10^{-19})^2  }{r^2 }  =     9.11 *10^{-31 }  *  9.81

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         r =  5.077  \  m

7 0
3 years ago
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AnnZ [28]

Answer:

All music in the world, is form only two notes and those notes are described below in detailed explanation.

Explanation:

In the chromatic scale, there are basically seven central musical notes, designated A, B, C, D, E, F, and G. They individual express a separate pitch or frequency. For illustration, the "central" A note has a pitch of 450 Hz, and the "common" B note has a pitch of 495 Hz.

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2 years ago
A gas-turbine power plant operating on the simple Brayton cycle has a pressure ratio of 7. Air enters the compressor at 0°C and
Ivahew [28]

Answer:

Answers of the Both parts  are in the following attachment

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