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Tems11 [23]
3 years ago
11

A ball is thrown 20.0 m/s at an angle of 40.0° with the horizontal. Assume the ball is thrown at ground level.

Physics
1 answer:
TEA [102]3 years ago
8 0
The ball's horizontal component of velocity (ie it's horizontal speed) is 20 cos 40degrees. Without knowing the distance of the ball to the wall it's difficult to go further ...
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If the spring constant is doubled, what value does the period have for a mass on a spring?
soldi70 [24.7K]

if spring constant is doubled, the mass on spring will be doubled as well. according to this formula, F=ke

k stands for spring constant and e stands for the length extended

4 0
3 years ago
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Which of the following is a reason to express scientific findings mathematically? A. The findings become more difficult to prove
mafiozo [28]
Now really ! 

If there were some kind of treatment of the results that made them
more difficult to prove by experiment, or made them more confusing,
or made them less appealing to the public, then there would be no
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Choice ' B ' is the only positive effect, so it's the only reason you'd
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5 0
3 years ago
A student hooks up a voltmeter and an ammeter in a circuit to find the resistance of a light bulb. The ammeter read 3 amps and t
yuradex [85]

Answer:

2\Omega

Explanation:

(Assuming the cell in the circuit has 0 internal resistance)

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V=IR

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R=\frac{V}{I}

Now we can plug in our values

R=\frac{6}{3}=2\Omega

7 0
3 years ago
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5 ejemplos de ondas mecánicas PORFAVOR!!
kupik [55]

Answer: Una onda de sonido es un ejemplo de onda mecánica. Las ondas sonoras son incapaces de viajar a través del vacío. Las ondas furtivas, las ondas del agua, las ondas de los estadios y las ondas para saltar la cuerda son otros ejemplos de ondas mecánicas; cada uno requiere algún medio para existir.

English Translation: A sound wave is an example of a mechanical wave. Sound waves are incapable of traveling through a vacuum. Slinky waves, water waves, stadium waves, and jump rope waves are other examples of mechanical waves; each requires some medium in order to exist.

Explanation:

6 0
2 years ago
What happens when light waves strike a mirror?
kolbaska11 [484]

Answer:

most light waves are scattered or are either reflected

Explanation:

the light waves bounce after hitting the mirror.

6 0
2 years ago
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