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soldi70 [24.7K]
2 years ago
7

.89m/s A vehicle that starts to move from the rest gets an acceleration of 5m/s² within 2 seconds. Calculate the velocity and di

stance covered by the vehicle within the given time. [Ans: 10m/s, 10m]​
Physics
1 answer:
GuDViN [60]2 years ago
5 0

<u>Explanation:</u>

s = ?           u = 0m/s        v = ?         a = 5m/s²        t = 2s

v = u + at                  

  = 0 + (5 x 2)              

  = 10 m/s                    

s = ut + 1/2 at²

= (0)(2) +  x    \frac{1}{2}  x 5 x 2²

= 10 m

Hope this helps!

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Match each type of wave to the way it moves.
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Answer:

Transverse wave- Back and forth at right angles to the direction of the wave arrow.

longitudinal wave- bask and forth in the direction of the motion of the motion of the wave.

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Explanation:

In a longitudinal wave, the particles vibrate at right angles in reference to the wave motion.

In a transverse wave, the particles vibrate parallel to the wave motion

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3 years ago
What is a voltage ? What is potential Difference ?
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Answer:

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8 0
3 years ago
An electron is trapped between two large parallel charged plates of a capacitive system. The plates are separated by a distance
Lorico [155]

Answer:

The electron will get at about 0.388 cm (about 4 mm) from the negative plate before stopping.

Explanation:

Recall that the Electric field is constant inside the parallel plates, and therefore the acceleration the electron feels is constant everywhere inside the parallel plates, so we can examine its motion using kinematics of a constantly accelerated particle. This constant acceleration is (based on Newton's 2nd Law:

F=m\,a\\q\,E=m\,a\\a=\frac{q\,E}{m}

and since the electric field E in between parallel plates separated a distance d and under a potential difference \Delta V, is given by:

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a=\frac{q\,\Delta V}{m\,d}

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v=v_0-a\,t\\0=v_0-a\,t\\t=v_0/a

We replace this time (t) in the kinematic equation for the particle displacement:

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Replacing the values with the information given, converting the distance d into meters (0.01 m), using \Delta V=100\,V, and the electron's kinetic energy:

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we get:

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8 0
4 years ago
A 5.17 kg block free to move on a horizontal, frictionless surface is attached to one end of a light horizontal spring. The othe
Andreyy89

Answer:

v=0.816 m/s

Explanation:

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E_{s}=E_{k}

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First determinate the constant of the spring that produce the kinetic energy of the bloc

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3 0
3 years ago
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The correct answer to the question is :  100\ ^0C

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The mass of the gold is given as m = 15 gram.

We are asked to calculate the change in temperature.

Let the change in temperature is dT.

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Hence, the change in temperature is 100 degree celsius.

5 0
4 years ago
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