A student is watching waves come in from the ocean. He noticed that the first wave he saw (Wave A) had twice the amplitude of the second wave he saw (Wave B). Which wave, A or B, had the most energy? Explain

One soccer player (a) is moving at 4 km/h when she kicks the ball while another soccer player (b) is moving at 8 km/h. what statement accurately compares their kinetic energy if they have the same mass? a) both soccer players have the same kinetic energy. b) player b has twice the kinetic energy of player a. c) player b has four times the kinetic energy of player a. d) their kinetic energy can't be compared without knowing their mass.

The voltmeter reads 117 v and ammeter reads 0.13 a .if the resistance of ammeter and voltmeter are 9 kilo ohm and 0.015 ohm respectively ,find the value of r. 3marks

Protein provides 4 calories per gram. mary is on a diet that requires her to eat at least 40 grams of protein each day. she's eaten 152 calories of protein today. howmuch more protein does mary need to eat to meet her goal