Everyday high and low tides on earth will happen daily about . * Every 12 hours
Every 4 hours
Every 6 hours
Every 8 hours

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

A1-lb collar is attached to a spring and slides without friction along a circular rod in a vertical plane. the spring has an undeformed length of 5 in. and a constant k =25 lb/ft. knowing that the collar is released from being held at a determine, the speed of the collar and the normal force between the collar and the rod as the collar passes through b.

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2