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Angelina_Jolie [31]
3 years ago
9

Are y'all into spirituality ?

Physics
2 answers:
Afina-wow [57]3 years ago
8 0
Yeah
why are you ???
Murrr4er [49]3 years ago
8 0

Answer:

I'm christian

Explanation:

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Why do people cover their flowers on a cool night. Think about radiation absorption conduction and temperature
Blababa [14]
When the temperature lowers the plants can freeze and die. One way to prevent that is to cover the plants so they dont freeze 

3 0
3 years ago
A force of 1 N is the only horizontal force exerted on a block, and the horizontal acceleration of the block is
SVEN [57.7K]

The mass of the first block will be three times the mass of the second block.

According to Newton's second law of motion, the force acting on a body is directly proportional to the acceleration as shown;

F\ \alpha \ a

F = ma

F is the acting force

m is the mass

a is the acceleration of the body

Given the following parameters

Constant force F =  1N

For the first block with the acceleration of "a"

1 = m₁a

a = m₁/1

m₁ = a .................1

For the second block, acceleration is thrice that of the first. This means;

F = m(3a)

1 = 3ma

m_2=\frac{1}{3a} ..........................2

Divide both equations

\frac{m_1}{m_2} =\frac{a}{(\frac{1}{3a} )}\\\frac{m_1}{m_2} = 3\\m_1 = 3m_2

From the calculation, we can conclude that the mass of the first block will be three times the mass of the second block.

Learn more here: brainly.com/question/19030143

4 0
3 years ago
A responder can protect himself/herself from radiation by using shielding as a response action. What materials are best for prot
Irina-Kira [14]

Answer:

Few millimeter thick aluminium, water, wood, acrylic glass or plastic.

Explanation:

The materials that are best for protection against beta particles are few millimeter thickness of aluminium, but for the high energy beta-particles radiations the low atomic mass materials such as plastic, wood, water and acrylic glass can be used.

These materials can also be used in personal protective equipment which includes all the clothing that can be worn to prevent any injury or illness due to the exposure to radiation.

3 0
3 years ago
Which of the following is NOT an important physical property of matter?
Xelga [282]
Volume isn't a property of matter at all. You can have a big lump or a tiny lump of the same substance.
5 0
3 years ago
Two strings on a musical instrument are tuned to play at 196 hz (g) and 523 hz (c). (a) what are the first two overtones for eac
Tems11 [23]
(a) first two overtones for each string:
The first string has a fundamental frequency of 196 Hz. The n-th overtone corresponds to the (n+1)-th harmonic, which can be found by using
f_n = n f_1
where f1 is the fundamental frequency.

So, the first overtone (2nd harmonic) of the string is
f_2 = 2 f_1 = 2 \cdot 196 Hz = 392 Hz
while the second overtone (3rd harmonic) is
f_3 = 3 f_1 = 3 \cdot 196 Hz = 588 Hz

Similarly, for the second string with fundamental frequency f_1 = 523 Hz, the first overtone is
f_2 = 2 f_1 = 2 \cdot 523 Hz = 1046 Hz
and the second overtone is
f_3 = 3 f_1 = 3 \cdot 523 Hz = 1569 Hz

(b) The fundamental frequency of a string is given by
f=  \frac{1}{2L}  \sqrt{ \frac{T}{\mu} }
where L is the string length, T the tension, and \mu = m/L is the mass per unit of length. This part  of the problem says that the tension T and the length L of the string are the same, while the masses are different (let's calle them m_{196}, the mass of the string of frequency 196 Hz, and m_{523}, the mass of the string of frequency 523 Hz.
The ratio between the fundamental frequencies of the two strings is therefore:
\frac{523 Hz}{196 Hz} =  \frac{ \frac{1}{2L}  \sqrt{ \frac{T}{m_{523}/L} } }{\frac{1}{2L}  \sqrt{ \frac{T}{m_{196}/L} }}
and since L and T simplify in the equation, we can find the ratio between the two masses:
\frac{m_{196}}{m_{523}}=( \frac{523 Hz}{196 Hz} )^2 = 7.1

(c) Now the tension T and the mass per unit of length \mu is the same for the strings, while the lengths are different (let's call them L_{196} and L_{523}). Let's write again the ratio between the two fundamental frequencies
\frac{523 Hz}{196 Hz}= \frac{ \frac{1}{2L_{523}} \sqrt{ \frac{T}{\mu} } }{\frac{1}{2L_{196}} \sqrt{ \frac{T}{\mu} }} 
And since T and \mu simplify, we get the ratio between the two lengths:
\frac{L_{196}}{L_{523}}= \frac{523 Hz}{196 Hz}=2.67

(d) Now the masses m and the lenghts L are the same, while the tensions are different (let's call them T_{196} and T_{523}. Let's write again the ratio of the frequencies:
\frac{523 Hz}{196 Hz}= \frac{ \frac{1}{2L} \sqrt{ \frac{T_{523}}{m/L} } }{\frac{1}{2L} \sqrt{ \frac{T_{196}}{m/L} }}
Now m and L simplify, and we get the ratio between the two tensions:
\frac{T_{196}}{T_{523}}=( \frac{196 Hz}{523 Hz} )^2=0.14
7 0
3 years ago
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