# elin

Most popular questions and responses by elin
1. ## phy

A golfer gives a ball a maximum initial speed of 37.0 m/s. 1-What is the highest tree the ball could clear on its way to the longest possible hole-in-one?

2. ## Chemistry

CuSO4(aq) + 4NH3(aq) → [Cu(NH3)4]SO4(aq) I know that adding nitric acid will reverse the reaction. But what is the actual chemical equation? [Cu(NH3)4]SO4(aq) + HNO3(aq) --> ???

3. ## Social Studies

1. What is the Empty Quarter? A. an oasis B. a desert** C. a mountain range D. a tectonic plate

4. ## probability

90%of a countrys population are a right handed . what is the probability that exactly 29 people in a group of 30 are right handad?

5. ## phy

Starting from rest, a car accelerates at 3.0 m/s^2 up a hill that is inclined 5.9 ^\circ above the horizontal. 1-How far horizontally has the car traveled in 14 s? 2-How far vertically has the car traveled in 14 s?

6. ## bio

explain what will happen to a sugar cube when it is placed in a sugar glass of water.

7. ## phy

A soccer ball is kicked with a speed of 9.15 m/s at an angle of 55.0^\circ above the horizontal. 1-If the ball lands at the same level from which it was kicked, how long was it in the air?

8. ## bio

explain what will happen to a sugar cube when it is placed in a glass of water.