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Vinvika [58]
3 years ago
5

How do you calculate acceleration

Physics
2 answers:
never [62]3 years ago
8 0

Answer:

As we know that acceleration is defined as the rate of change in velocity

So in order to find the acceleration of a given system we need to find the change in velocity of the given system with respect to time.

So here the formula is given as

a = \frac{v_2 - v_1}{\Delta t}

so in order to find the acceleration we need

v_2 = final velocity

v_1 = initial velocity

\Delta t = time interval

so here we can say that acceleration calculation must need the change in velocity and the time taken to change the velocity both and the ration of this will give us the value of the acceleration

AfilCa [17]3 years ago
7 0
A=f/m
Example a=10/2
A=5
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The amplitude of a lightly damped oscillator decreases by 4.2% during each cycle. What percentage of the mechanical energy of th
ra1l [238]

Answer:

V= A ω      maximum KE of object in SHM

V2 / V1 = .958     ratio of amplitudes since ω is constant

KE2 / KE1 = 1/2 m V2^2 / (1/2 m V1^2) = (V2 / V1)^2

KE2 / KE1 = .958^2 = .918

So KE2 = .918 KE1 and .082 = 8.2% of the energy is lost in one cycle

6 0
2 years ago
. Which of the following would be the best technique to use in order to separate an insoluble solid from a liquid?. Answer. . ch
kvasek [131]
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8 0
3 years ago
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Your 300 mL cup of coffee is too hot to drink when served at 87.0 degrees Celsius. What is the mass of the ice cube, taken from
mojhsa [17]

Answer:

m=43.39 Kg

Explanation:

from conservation principle we have

heat gained by  ice equal to heat lost by coffee

heat gained by ice = heat from -15 °C ice to 0 °C ice + 0 °C ice to 0 °C water + 0 °C water to 65 °C water

                                 = m*S1*15 + mL + ms2 *65

where s is specific heat of respective phase

                               = m(2.08 *15 + 334.16 + 4.184 *65)

                                = m*637.32

heat lost by the coffee= ms* delta T

                                     =0.3 *4190 *(87-65)

                                     =27654

therefore

27654   = m*637.32

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3 0
3 years ago
In reaching her destination, a backpacker walks with an average velocity of 1.20 m/s, due west. This average velocity results, b
GaryK [48]

Answer:

x_2 = 648.46\ m

Explanation:

given,

Average velocity due west =  1.20 m/s

case 1

Distance moved in west, x₁ = 5.63 km

speed due west, v₁ = 2.33 m/s

Case 2

Distance moved in east = x₂

speed due east, v₂ = 0.374 m/s

total distance = x₁ + x₂ = 5.62

total time = t₁ + t₂ = 5630/2.33 + x₂/0.374

now,

average\ velocity = \dfrac{total\ distance}{total\ time}

-1.20= \dfrac{-5630 + x_2}{\dfrac{5630}{2.33}+\dfrac{x_2}{0.374}}

negative sign is used because we want the distance in east but velocity is in west.

- 2900 - 3.21 x_2 = -5630 + x_2

-4.21 x_2 = -2730

x_2 = 648.46\ m

The distance she walked in east is equal to 648.46 m

7 0
3 years ago
When work is done on an object , the results is an increase in its what
Ksju [112]

Answer:Im guessing Mechanical Energy

Explanation:

We are learning that work and energy work hand in hand so im completely guessing this

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3 years ago
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