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JulsSmile [24]
3 years ago
8

A body moving with uniform acceleration has

Physics
1 answer:
ANEK [815]3 years ago
4 0

The x-component of the acceleration is -11.3 cm/s^2

Explanation:

This problem is an example of uniformly accelerated motion, so we can solve it by using the following suvat equation:

s=ut+\frac{1}{2}at^2

where

u is the initial velocity

a is the acceleration

s is the displacement

t is the time

For the body in this problem, we have:

u = 11.1 cm/s is the initial velocity

The displacement is

s = -3.58 - (3.59) = -7.17 cm

While the time is

t = 2.48 s

Substituting and solving the formula for a, we find the x-component of the acceleration:

a=\frac{2s}{t^2}-\frac{2u}{t}=\frac{2(-7.17)}{(2.48)^2}-\frac{2(11.1)}{2.48}=-11.3 cm/s^2

Learn more about acceleration:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

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Four hundred seventy joules of heat are removed from a heat reservoir at a temperature of 470 K. What is the entropy change of t
11111nata11111 [884]

Answer:

ΔS= -1 J/K

Explanation:

Given data

Heat Q= -470J

Temperature T=470 K

To find

Entropy change ΔS

Solution

We know that the entropy change of system is ΔS is given by

ΔS=Q/T

We have take heat value Q as negative because the heat is removed from heat reservoir

So

ΔS=(-470J/470K)

ΔS= -1 J/K

8 0
3 years ago
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Answer the question below
Ivan

Answer:

the the right because opposites attract to each other

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3 years ago
A recent study found that electrons that have energies between 3.45 eV and 19.9 eV can cause breaks in a DNA molecule even thoug
vlada-n [284]

Answer:

The Minimum wavelength is  \lambda_{min}= 382.2nm

The Maximum wavelength is \lambda_{max}= 624.2nm

Explanation:

From the question we are told that  

              The energy range is  E_r = 3.25eV \ and  \ 19.9eV

   Considering E = 19.9eV

When a single photon is transferred to to an electron the energy obtained can be calculated as follows

              E = 19.9eV = 19.9 *1.6 *10^{-19}J

This energy is mathematically represented as

                    E = \frac{hc}{\lambda_{max}}

Here h is the Planck's constant with value of  h= 6.625*10^{-34}J\cdot s

        c is the speed of light with value of  c = 3*10^8 m/s

Substituting values and making \lambda the subject of the formula

                       \lambda_{max} = \frac{hc}{E}

                         = \frac{6.625*10^{-34} * 3.0*10^{8}}{19.9*1.6*10^{-19}}

                         \lambda_{max}= 624.2nm

  Considering E = 3.25eV

When a single photon is transferred to to an electron the energy obtained can be calculated as follows

              E = 19.9eV = 3.25 *1.6 *10^{-19}J

This energy is mathematically represented as

                    E = \frac{hc}{\lambda_{min}}

Substituting values and making \lambda the subject of the formula

                       \lambda_{min} = \frac{hc}{E}

                           = \frac{6.625*10^{-34} * 3.0*10^{8}}{3.25*1.6*10^{-19}}

                           \lambda_{min}= 382.2nm

3 0
3 years ago
Ok plz answer and tell me how to do it
kirza4 [7]
Answer: 25N

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Identify the activities that help reduce the carbon footprint of a person or an organization
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All pf them except for the train.
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