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svet-max [94.6K]
2 years ago
10

A car acceleration uniformly from 5 m\s to 13m/s in 4.0s. What is the acceleration of the car

Physics
1 answer:
Mila [183]2 years ago
8 0

Answer:

2 m/s/s

Explanation:

Vf-Vi = at

13-5 = a (4)

a = 2 m/s/s

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Describe and explain how the movement and arrangement of the particles in a block of ice change as the ice melts to form liquid
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Answer:

Ice is water in solid phase, in this phase, the particles are very close together and relatively in fixed positions.

As the temperature starts to increase (thermal energy), also does the kinetic energy of the particles (so we have a change from thermal energy to kinetic energy), so they start to move "more", and the position of the particles starts to be less "fixed". There is a point where the particles have enough energy, and this point is where the phase of the water changes from solid to liquid phase (the fusion point). After this point the water can not hold his shape, and takes the shape of the container where it is.

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What is the dependent variable in this hypothesis?
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The height at wich the object floats

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3 years ago
An automobile having a mass of 2000 kg deflects its suspension springs 0.02 m under static conditions. Determine the nafural fre
alexandr1967 [171]

Answer:Frequency = 3.525 Hertz

Explanation:In static equilibrium, kd =mg

Where k= effective spring constant of the spring.

mg= The weight of the car.

d= static deflection.

Therefore, w =SQRTg/d

w = SQRT 9.81/0.02

w= 22.15 rad/sec

Converting to Hertz unit for frequency

1 rad/s = 0.1591

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22.15 × 0.1591= 3.525 hertz

7 0
3 years ago
Which type of current flows inside the flashlight A direct B alternating C repeating D pulsating
anzhelika [568]

The flashlight is powered by one or more batteries.
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7 0
2 years ago
Read 2 more answers
Woman pulls a 6.87 kg suitcase,
GenaCL600 [577]

Answer:

2.24 m/s

Explanation:

resolving force of 29.2 N in x component

Fx = 29.2 cos 57.7

Fx = 15.6N

as force of friction is 12.7 N hence net force which produces acceleration is

15.6-12.7=2.9 N

by Newton 's law a=f/m

a= 2.9/6.87=0.422 m/s^2

now equation of motion is

v^2= U^2+2as

 = 0^2+2(.422)(5.93)

v^2=5.00

v=2.24 m/s

4 0
3 years ago
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