2 years ago

A light ray is incident on a mirror at an angle θ with respect to the normal. what is the direction of the reflected ray?

1 answer:

5 0

Angle of reflection = θ [ As it is equal to angle of incidence ]

Direction of reflected ray is always opposite to direction of incident ray, i.e., away from the surface of mirror.

Hope this helps!

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An object starts from rest, and accelerates at 2m/s2 for 10s. How far has it gone in that time

blagie [28]

Answer:

100m

Explanation:

$s = ut + \frac{1}{2} a {t}^{2}$

u=0;t=10sec;a=2m/s²

$s = 0(10) + \frac{1}{2}(2 \times {10}^{2} )$

s=10²;100m

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3 years ago

Help pls, see picture. Will mark Brainliest

Leno4ka [110]

Answer:

Explanation:

the graph shows the line going up (accelerating) and it isn't curving like d so it doesn't stop accelerating

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2 years ago

A ball is thrown vertically upwards with a velocity of 9.8 m/s. Its velocity after 1 second will be

Reil [10]

$\LARGE{ \underline{\underline{ \purple{ \bf{Required \: answer:}}}}}$

GiveN:

Initial velocity = 9.8 m/s²
Accleration due to gravity = -9.8 m/s²
Time taken = 1 s

To FinD:

Final velocity of the ball?

Step-by-step Explanation:

Using the first Equation of motion,

⇒ v = u + gt

⇒ v = 9.8 + -9.8(1)

⇒ v = 0 m/s

The final velocity is hence 0 m/s.

While solving questions of under gravity motions using equations of motion, remember the sign convection to avoid mistakes.
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1 year ago

The shape of an atom.is Spherical Square Pyramifal

zvonat [6]

Spherical because it’s more like clouds

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2 years ago

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As a person pushes a box across a floor, the energy from the person’s moving arm is transferred to the box, and the box and the

san4es73 [151]

Answer:

conserved