The x component of the velocity of an object vibrating along the x-axis obeys the equation v(t)=(0.445m/s)sin[(25.4rad/s)t+0.2 23]. (a) what is the amplitude of the motion of this object?

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?

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.

You are standing on a boat. which of the following strategies will make the boat start moving? a. pushing the mast b. throwing some cargo out of the boat c. pushing the front ofthe boat d. pushing another passenger