3. A 10 kg dog ran across a field at a speed of 12 m/s. How much kinetic energy did it have?

When you drop a pebble from height a it reaches the ground with speed v if there is no air resistance. from what height should you drop it so it will reach the ground with three times the speed? (a) 9m (b) 3m (c) 6m (d) 18m

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?

Which additional product balances the reaction h2so4 + 2naoh → na2so4 + 2h2o 2oh h2o2 h3o