Answer:
No. Because it would correspond to zero Instantaneous acceleration.
Explanation:
hope this helps
I am absolutely sure that if something is hot, it contain thermal energy only because <span>if a given body is heated its electrons start to move very fast which means that thermal energy is being produced. Hope everything is clear! Regards!</span>
Answer:
80
Explanation:
because of the denstiy formula
Average speed = (distance covered) / (time to cover the distance)
= (30km + 40 km) / (25min + 35min)
= (70 km) / (60 min)
= 70 km/hour
Answer: 0.29 kN
Explanation:
We have the following data:
is the weight of the astronaut on Earth
is the free fall acceleration due gravity on Earth (directed downwards)
is the free fall acceleration due gravity on Zuton (directed downwards)
is the acceleration of the spaceship at litoff (directed upwards)
We have to find the <u>magnitude of the force</u>
the space ship exerts on the astronaut.
Firstly, we have to know weight has a direct relation with the mass and the acceleration due gravity. In the case of Earth is:
(1)
Where
is the mass of the atronaut.
Isolating
:
(2)
(3)
(4)
Now that we know the mass of the astronaut, we can find its weight on Zuton:
(5)
(6)
(7)
Then, we can calculate the force the space ship exerts on the astronaut by the following equation:
(8)
Isolating
:
(9)
(10)
(11)
Finally: