A ball is thrown off a cliff with a horizontal velocity of 12. If the cliff is 51 meters tall, how many seconds will it take the ball to reach the ground? Please help ASAP

Why is it important always to use horizontal bars in unit fractions when performing unit conversions?

Which lists the organs in the correct order as food passes from the mouth to anus?

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .