Sound travels faster in air if the air temperature is :_____
1 answer:
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Answer:
<em>The less mass an object has, the </em><u>less</u><em> its gravitational [force.]</em>
Explanation:
Newton's Law of Gravity states that . The two <em>m</em> values are the objects' masses, G is the gravitational constant, and <em>r</em> is the distance between the objects' centers. Notice how the mass values are in the fraction's <em>numerator</em>? That means <em>increasing</em> the mass of one or both objects <em>increases</em>
. That also implies the inverse; <em>decreasing</em> the mass of one or both objects <em>decreases</em>
!
I hope this helps you understand this concept a little more! Have yourself a fantastic day, 'kay?
Answer:
T = 17649.03 N = 17.65 KN
Explanation:
The tension in the cable must be equal to the apparent weight of the passenger. For upward acceleration:
where,
T = Tension in cable = ?
= Apparent weight
m = mass = 1603 kg
g = acceleration due to gravity = 9.81 m/s²
a = acceleration of elevator = 1.2 m/s²
Therefore,
<u>T = 17649.03 N = 17.65 KN</u>
Answer:
(A) 0.3488 rad/sec
(B) 124.246 m
Explanation:
We have given car completes one revolution in 18 sec'
So time period T= 18 sec
Tangential speed v = 43.4 m/sec
(A) Angular velocity is given by
(B) Tangential velocity is given v = 43.4 m /sec
We know that