2 years ago

What is the speed of a 500 kg elevator that has 4000 J of energy ?

Physics

1 answer:

malfutka [58]2 years ago

8 0

Energy =sxm
S =4000/500
=Answer

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You position two plane mirriors at right angles to each other a light ray strikes one mirrior at an angle of 60 to the normal an

Dafna1 [17]

Answer:

30 degrees

Explanation:

Reflects off of mirror 1 at 60 degrees....this makes it incident to second mirror at 30 degrees ....then angle of reflection equals this angle of incidence = 30 degrees

See atached diagram

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1 year ago

What is the greatest distance an image can be located behind a convex spherical mirror?

Afina-wow [57]

Answer:

Maximum distance of image from mirror is equal to focal length of the mirror

Explanation:

As we know by the equation of mirror we have

$\frac{1}{d_i} + \frac{1}{d_o} = \frac{1}{f}$

here we know for convex mirror

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So here we have

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2 years ago

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disa [49]

A testing instrument that's used to measure electrical signals
in a circuit and display them as waveforms on a screen is called
an oscilloscope.

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2 years ago

A car is travelling with a velocity 90 km/hr and other with 72 km/hr in opposite direction, find the relative velocity between t

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590km pls brainlist

Explanation:

jjjuue

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1 year ago

A student analyzes data of the motion of a planet as it orbits a star that is in deep space. The orbit of the planet is consider

Valentin [98]

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The orbit of the planet is considered to be stable and does not change over time. This means that the force of gravity and inertia are perfectly balanced. Leading to forward motion of Planet and moons under force of gravity of some other large body(Most probably stars).This is in turns leads to formation of orbit.

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2 years ago

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