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Kamila [148]
3 years ago
15

Explain why there is no acceleration horizontally on an object in Projectile Motion. A. There is no acceleration horizontally be

cause velocity is constant in the x- direction. B. There is no acceleration horizontally because velocity increases in the x- direction. C. There is no acceleration horizontally because velocity decreases in the x-direction . D. There is no acceleration vertically because velocity is constant in the y -direction .
Physics
1 answer:
Jobisdone [24]3 years ago
4 0

Answer:

Option  A is correct.

Explanation:

The force of gravity does not affect the horizontal component in projectile motion; a projectile maintains a constant horizontal velocity. So there is no acceleration ( a=0 ) in horizontal direction as velocity remains constant.

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Tell the different energy transformations that happen in each of these items
Alik [6]

Answer:

Television: Electricity to light Toaster: Electricity to Heat

Explanation:

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3 years ago
Why do the heights of the tides change over the course of a month?
Y_Kistochka [10]

Answer:

The heights of the tides change over the course of a month due to -

<u>the position of Sun , Moon and Earth .</u>

Explanation:

Tides are formed due to the gravitational attraction of the sun and the moon on the surface of the Earth .

Since , the Moon is closer to Earth as compared to the Sun , Hence , Moon has greater attraction on Earth than Sun .

Moon plays an important role for producing the Tides .

In every 27.3 days , the Earth and the Moon revolves around the common point .

Therefore , in every 27.3 days , a new tidal cycle forms .

Two types of tides are possible , high tide and low tides .

In a day , two high tide and two low tide occurs ,

And because of the angle of Moon with respect to Earth , the two high tides do not have the same height . same for the case of two low tide .

The height of tides differ in the height on a daily basis .

5 0
3 years ago
When you're 10 or 20 miles away from the origin of an earthquake, the P-waves get to you a little bit before the S-waves. Which
zvonat [6]

Explanation:

P, Primary, or Compressional waves travel the fastest (~6 km/sec in the upper crust). They cause the matter to oscillate forward and backward, parallel to the motion of the seismic wavefront. P waves push (compress) and pull (dilate) the rock that they pass through.

yor answe is (B)

4 0
3 years ago
The shoe is in contact with the initially nearly stationary 0.500 kg football for 20.0 ms. What average force is exerted on the
Olin [163]
If v=22m/s after0.02s then acceleration was
22/0.02=1100m/s^2
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4 0
3 years ago
Read 2 more answers
Use the ratio version of Kepler’s third law and the orbital information of Mars to determine Earth’s distance from the Sun. Mars
frez [133]

Answer:

<em>1.49 x </em>10^{11}<em></em>

<em></em>

Explanation:

Kepler's third law states that <em>The square of the orbital period of a planet is directly proportional to the cube of its orbit.</em>

Mathematically, this can be stated as

T^{2} ∝ R^{3}

<em>to remove the proportionality sign we introduce a constant</em>

T^{2} = kR^{3}

k = \frac{T^{2} }{R^{3} }

Where T is the orbital period,

and R is the orbit around the sun.

For mars,

T = 687 days

R = 2.279 x 10^{11}

for mars, constant k will be

k = \frac{687^{2} }{(2.279*10^{11}) ^{3} } = 3.987 x 10^{-29}

For Earth, orbital period T is 365 days, therefore

365^{2} = 3.987 x 10^{-29} x R^{3}

R^{3} = 3.34 x 10^{33}

R =<em> 1.49 x </em>10^{11}<em></em>

8 0
3 years ago
Read 2 more answers
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