osmosis and cellular transport - the physics of molecular movement, kinetic energy and diffusion.
Answer:
4th answer
Explanation:
The gradient of a distance-time graph gives the speed.
gradient = distance / time = speed
Here, the gradient is a constant till 30s. So it has travelled at a constant speed. It means it had not accelarated till 30s. and has stopped moving at 30s.
A. Acceleration! ㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ
Answer:
4.5 kg
Explanation:
Since weight, W = mg where m = mass and g = gravity acceleration = 10 N/kg and W = 45 N
m = W/g
= 45 N/10 N/kg
= 4.5 kg
The mass of the block on the ship is thus 4.5 kg. Since mass is an intrinsic property of a substance and does not change with location, the mass of the block when it is brought to as space station surrounding the earth is also 4.5 kg.
