H. A stone is projected vertically up with the velocity of 19.6 m/s. I) Calculate time taken by the stone to reach the maximum height.
ii,) how long it takes to travel 294 m below the point of projection.
plz solve this equation
and don't send link​

For the car in the picture ,in which direction is the normal force? -into the screen -down -out of the screen -up

The two stars in a certain binary star system move in circular orbits. the first star, alpha, has an orbital speed of 36 km/s. the second star, beta, has an orbital speed of 12 km/s. the orbital period is 137 d. a) what is the mass of the star alpha? b) what is the mass of the star beta?

Heterogeneous mixture with larger particles that never settle is