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oee [108]
3 years ago
10

What's is meant by relative motion?​

Physics
2 answers:
MrRissso [65]3 years ago
7 0

Answer:

<em>relative</em><em> </em><em>motion </em><em>is </em><em>the </em><em>motion</em><em> </em><em>of </em><em>an </em><em>object</em><em> </em><em>compared </em><em>to </em><em>that </em><em>of </em><em>another </em><em>object.</em><em>f</em><em>o</em><em>r</em><em> </em><em>example</em><em> </em><em>two </em><em>cars </em><em>driving</em><em> </em><em>in </em><em>the </em><em>same </em><em>highway </em><em>in </em><em>the </em><em>same </em><em>direction</em><em>.</em>

<em>I </em><em>hope</em><em> this</em><em> helps</em>

saveliy_v [14]3 years ago
4 0

Relative motion means a motion relative to a reference point. We can also say, relative motion means motion referred or observed from a reference point.

For example, Alex is in a train and Ace is at the station, when the train starts moving, for Ace it is moving at a speed of 10 m/s, but for Alex it is moving at 0 m/s, or we can say that it is at rest for Alex, but in motion for Ace. This is relative motion.

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A baseball is hit nearly straight up into the air with a speed of 22 m/s. (a) how high does it go? (b) how long is it in the air
Mariulka [41]
Refer to the diagram shown below.

When the ball attains maximum height, it will have zero vertical velocity.
The maximum height, h. obeys the equation
0 = (22 m/s)² - 2*(9.8 m/s²)*(h m)
h = 22²/(2*9.8) = 24.694 m

Answer: The maximum height attained is 24.7 m (nearest tenth)

Part b.
The vertical height traveled by the ball obeys the equation
h = (22 m/s)t - (1/2)*(9.8 m/s²)*(t s)²
where
h = vertical height, m
g = 9.8 m/s², acceleration due to gravity
t = time, s

To find how long the ball stays in the air, set h = 0 to obtain
4.9t² - 22t = 0
t(4.9t - 22) = 0
t = 0, or t = 22/4.9 = 4.49 s
t = 0 corresponds to the launch, and t = 4.49 s corresponds to when the ball retuns to the ground.

Answer: The ball stays in the air for 4.5 s (nearest tenth)

3 0
4 years ago
What is the amplitude of the resulting wave when the two waves meet at point X?
IrinaK [193]

Answer:

Resulting amplitude, A = 0 cm

Explanation:

The phenomenon of interference occurs when two travel and meet at the same point. There are two conditions for interference. The first one is constructive and the other one is destructive.

In this case, two waves have same amplitude but they are not in same phase such that they meet at point X and destructive interference occurs.

Let A is the amplitude of the resulting wave such that,

A=A_1-A_2

A=2\ cm-2\ cm

A = 0

So, the amplitude of the resulting wave is 0 cm. Hence, the correct option is (A).

8 0
3 years ago
A jet plane flying 600 m/s experiences an acceleration of 4g when pulling out of the dive. What is the radius of curvature of th
Gnoma [55]

Answer:

91.84 m/s²

Explanation:

velocity, v = 600 m/s

acceleration, a = 4 g = 4 x 9.8 = 39.2 m/s^2

Let the radius of the loop is r.

he experiences a centripetal force.

centripetal acceleration,

a = v² / r

39.2 x r = 600 x 600

r = 3600 / 39.2

r = 91.84 m/s²

Thus, the radius of the loop is 91.84 m/s².

8 0
3 years ago
Se pune<br>Numerical problems<br>Convert 100ºC to Kelvin scale​
IgorC [24]

Answer:

373 K

Explanation:

To convert from °C to kelvin, you add the value to 273

Therefore,

100°C = (100+273)K

= 373K

5 0
4 years ago
PE:
ella [17]

Answer:

The answers are:

T, T, F, F, T, T, F, F, T, T, F

Good luck!

7 0
3 years ago
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