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3 years ago

Help.me on question 3 pls as fast as you can

Physics

1 answer:

antoniya [11.8K]3 years ago

7 0

Answer:

Drought

Explanation:

If you are asking about Number 2. then the answer would be lack of precipitation (rain).

Climate change didn't allow for cold air to meet the warm air to produce precipitation over the run off area of the lake.

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Refraction like a pencil going into water

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The other three choices are all electromagnetic waves.

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Earth receives some of the Sun's energy in the form of heat and light.

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3 years ago

A mass attached to the end of a spring is oscillating with a period of 2.25 s on a horizontal frictionless surface. The mass was

Rudiy27

Answer:

$X=0.0389m$

Explanation:

From the question we are told that:

Period of spring $T_s=2.25s$

Initial Position of Mass $x=0.0480m$

Final Mass period $T_f=5.85s$

Generally the equation for the Mass location is mathematically given by

$X=xcos*\frac{2\pi T_s}{T_f}$

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3 years ago

A car is moving initially at 30 m/s comes gradually at stop at 900 m . What is acceleration of the car ?

ziro4ka [17]

The acceleration of the car is 0.5 meters per seconds square.

Given the following data:

Initial velocity, U = 30 m/s

Distance, S = 900 meters

Note: The final velocity (V) of the car would be zero (0) m/s when it comes to a stop.

To find the acceleration of the car, we would use the third equation of motion;

Mathematically, the third equation of motion is given by the formula;

$V^2 = U^2 - 2aS\\\\0 = 30^2 - 2a(900)\\\\0 = 900 - 1800a\\\\1800a = 900\\\\a = \frac{900}{1800}$

Acceleration, a = 0.5 $m/s^2$

Therefore, the acceleration of the car is 0.5 meters per seconds square.