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Andrew [12]
3 years ago
14

A light ray strikes a flat, smooth, reflecting surface at an angle of 80° to the normal. What angle does

Physics
2 answers:
charle [14.2K]3 years ago
7 0

Answer:

80 angle of incidence=angle of reflection

Explanation:

viktelen [127]3 years ago
3 0

Answer:

80 angle of reflection!

Explanation:

Because it is a flat, smooth surface it will reflect like that of a normal plane mirror, so the angle of reflection will be equal to that of the angle of incidence!

Hope this helps you understands!

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The wheelchair starts from rest. It accelerates at a constant rate until it has a speed of 1.5 m/s. The wheelchair travels a dis
anastassius [24]
<h2><em><u>Answ</u></em><em><u>er</u></em><em><u>:</u></em><em><u>-</u></em></h2>

\pink{\bigstar} The acceleration of the wheelchair is \large\leadsto\boxed{\tt\purple{0.5625 \: m/s^2}}

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

<h3>• <u>Given</u><u>:</u><u>-</u></h3>

  • Initial velocity of the wheelchair = 0 m/s

  • Final velocity of the wheelchair = 1.5 m/s

  • Distance covered by the wheelchair = 2 m

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

<h3>• <u>To</u><u> </u><u>Find</u><u>:</u><u>-</u></h3>

  • Acceleration of the wheelchair = ?

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

<h3>• <u>Solution</u><u>:</u><u>-</u></h3>

We know,

• <u>Third</u><u> </u><u>Eq</u><u>uation</u><u> of</u><u> Motion</u><u>:</u><u>-</u>

\pink{\bigstar} \large\underline{\boxed{\bf\green{v^2 - u^2 = 2as}}}

where,

  • u = Initial velocity

  • v = Final velocity

  • a = Acceleration

  • s = Distance covered

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

• <u>S</u><u>u</u><u>b</u><u>s</u><u>t</u><u>i</u><u>t</u><u>u</u><u>t</u><u>i</u><u>n</u><u>g</u><u> </u><u>the</u><u> </u><u>values</u><u> </u><u>in</u><u> </u><u>th</u><u>e</u><u> </u><u>Formula</u><u>:</u><u>-</u>

➪ \sf (1.5)^2 - (0)^2 = 2 \times a \times 2

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ \sf 2.25 - 0 = 4 \times a

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ \sf 2.25 = 4 \times a

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

➪ \sf a = \dfrac{2.25}{4}

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

★ \large{\bold\red{a = 0.5625 \: m/s^2}}

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

Therefore, the acceleration of the wheelchair is 0.5625 m/s².

7 0
2 years ago
Which planet would float if placed in water
ikadub [295]

If placed in water Saturn would float. This is because it is mostly made up of gas, which is less dense than water.

5 0
3 years ago
How do you find the velocity of an object?
Scorpion4ik [409]
<span>Basically just divide the change in position by the change in time. </span>
3 0
3 years ago
How do i calculate acceleration? pls help! thanks :)
LenKa [72]

The acceleration is 2 mph/min

Explanation:

The acceleration of an object is the rate of change of velocity. It is defined as follows:

a=\frac{v-u}{t}

where

v is the final velocity

u is the initial velocity

t is the time taken for the velocity to change from u to v

For the car in this problem, we have (taking North as positive direction):

u = 25 mph

v = 35 mph

t = 5 min

Substituting into the equation, we find the acceleration:

a=\frac{35 mph-25mph}{5min}=2 mph/min

Learn more about acceleration:

brainly.com/question/9527152

brainly.com/question/11181826

brainly.com/question/2506873

brainly.com/question/2562700

#LearnwithBrainly

4 0
3 years ago
Which statement is true for a sound wave entering an area of warmer air
Reika [66]
That waves travel faster than the wave lenght!
8 0
3 years ago
Read 2 more answers
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