Answer:
(a) 85.64°F
(b) 78.28°C
(c) - 268.8°C
Explanation:
(a) 29.8°C into °F
To convert °C into °F, we use the formula given below
C / 100 = (F - 32) / 180
C / 5 = (F - 32) / 9
9 x 29.8 / 5 = F - 32
F = 85.64°F
(b) 172.9°F into °C
C / 5 = (F - 32) / 9
C = (172.9 - 32) x 5 / 9
C = 78.28°C
(c) 4.2 K into °C
C = K - 273
C = 4.2 - 273 = - 268.8°C
I’m pretty sure the answer would be :
9.8m/s2
Explanation: gravity =9.8m/s2
Answer:
Option d
Explanation:
When we throw an object in the upward direction, we provide it with certain initial velocity due to which it covers a certain distance up to the maximum height.
While the object is moving in the upward direction, its velocity keeps on reducing due to the acceleration due to gravity which acts vertically downwards in the opposite direction thus reducing its velocity.
So, the maximum height attained by the object is the point where this upward velocity of the body becomes zero and after that the object starts to fall down.
Answer: The correct answer is:
Galileo used instruments and experiments to show him what nature was doing, instead of relying on pure logic
Explanation:
Galileo can be considered as one of the precursors of experimentation and the scientific method. A method that doesn't rely on "common sense" and rationalization and logic, but instead is fuelled by a disposition of skepticism and rather makes claims about reality based on experimentation and empirical data shows.
Galileo differed from his predecessors because he actually used and developed instruments and method to reliable measure and observe what nature was doing, instead of relying on pure logic.
