(! will give brainliest answer) the coaster below starts from rest at point a. it has a mass of 872 kg. there is no friction or air resistance. point a is 50 meters above ground. point b is 20 meters above ground. calculate the speed of the coaster at point b. a) 24 m/s b) 50 m/s c) 20 m/s

According to the tide table below what time of day will the highest tide occur?

Apositive charge moves in the direction of an electric field. which of the following statements are true? check all that apply. check all that apply. 1.the potential energy associated with the charge decreases. 2. the electric field does positive work on the charge. 3. the electric field does negative work on the charge. 4. the potential energy associated with the charge increases. 5. the electric field does not do any work on the charge. 6. the amount of work done on the charge cannot be determined without additional information.

Positive ions differ from neutral atoms in that