Which of the following is not an interaction between ecosystems? a. competition. b. mutualism. c. equilibrium. d. predation

How much work is done lifting a 9.10 kg box straight up onto a shelf that is 1.80 m high?

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.