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2 years ago

What is a cars acceleration in the direction of motion when velocity changes from 20. M/s to 60. M/s in 10. S

Physics

1 answer:

brilliants [131]2 years ago

8 0

Answer:

Acceleration, $a=4\ m/s^2$

Explanation:

Given that,

Initial velocity, u = 20 m/s

Final velocity, v = 60 m/s

Time, t = 10 s

We need to find the acceleration of the car. It is equal to the change in velocity divided by time.

$a=\dfrac{v-u}{t}\\\\a=\dfrac{60-20}{10}\\\\a=\dfrac{40}{10}\\\\a=4\ m/s^2$

So, the acceleration of the car is $4\ m/s^2$ .

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The human circulation system has approximately 1×109 capillary vessels. Each vessel has a diameter of about 8 µm. Assuming cardi

RUDIKE [14]

Answer:

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3 years ago

The function s(t) represents the position of an object at time t moving along a line. Suppose s (2 )equals 146and s (6 )equals

sineoko [7]

Answer:

v(t) = 27 units

Explanation:

The function s(t) represents the position of an object at time t moving along a line such that,

$s(2)=146$

and

$s(6)=254$

We need to find the average velocity of the object over the interval of time [2,6]. The velocity of the object is equal to the total distance divided by time. It is given by :

$v(t)=\dfrac{s(6)-s(2)}{6-2}$

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So, the average velocity of the object is 27 units. Hence, this is the required solution.

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2 years ago

Dr. Glover's office has one vendor for their practice management software and another for their electronic health record, but th

Sliva [168]

Answer:

Interface

Explanation:

This is a classic example of Interface technology.

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Here in this case also systems are able to communicate with one another without duplicating data entry. For example, practice management software and another for their electronic health record.

5 0

2 years ago

How is energy transferred between two objects at different temperatures?

mojhsa [17]

When calculated energy transferred between objects use the definition of heat as

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2 years ago

Write down the (real) electric and magnetic fields for a monochromatic plane wave of amplitude E0 , frequency w, and phase angle

jeka57 [31]

Answer:

a) the oscillation of this field is in phase, when the magnetic field goes in the negative direction of y, the elective field goes in the positive direction of the z axis

b) the direction of the magnetic field perpendicular to this electric field and the speed in the negative x the magnetic field goes in the x direction and in the direction (1, - 1.1)

Explanation:

a) the polarization the determined wave oscillates the electric field, which is the z axis

As the wave travels on the negative x-axis and the magnetic field is perpendicular, this field goes on the positive y-axis

the oscillation of this field is in phase, when the magnetic field goes in the negative direction of y, the elective field goes in the positive direction of the z axis

be) in the case of a polarization in the xi plane the magnetic field must go in the direction of the magnetic field perpendicular to this electric field and the speed in the negative x the magnetic field goes in the x direction and in the direction (1, - 1.1)

3 0

2 years ago