Answer:
B
Explanation:
Heat increase molecular motion
Friction or vibration is your answer
There are two forces acting on a rocket at the moment of lift off: Thrust pushes the rocket upwards by pushing gases downwards in the opposite direction.Weight is the force due to gravity pulling the rocket downwards towards the centre of the earth.So I'm thinking the answer is THRUST.
Answer:
6.708 × 10⁸ miles/h
Explanation:
Given:
Speed of Light = 3.00 × 10⁸ m/s
1 mile = 1610 m
⇒1 m = 1/1610 mile
also 1 second = 1/3600 hrs
so 3.00 × 10⁸ m/s = (3.00 × 10⁸ ×3600) / 1610 m/h = 6.708 × 10⁸ miles/h
thus 3.00 × 10⁸ m/s = 6.708 × 10⁸ miles/h
Answer: False.
Explanation: The Earth rotates once per day in direction from East to West. The rotation of the Earth daily is responsible for day and night experienced, the areas of the Earth facing the Sun experiences day time while the areas of the Earth away from the Sun in the Earth's shadow experiences night time.
While the revolution of the Earth around the gives rise to a year, as it takes 365 days for the Earth to go round the sun.