30. If an object is moving, it will have: a. Acceleration
b. Scalar
c. Vector
d. Momentum

When is this

D.) a wheel barrow, due to the fact that where the weight is in the middle, the fulcrum is at the wheel, and the input force is at the other end

The scientific method is1)make an observation. scientists are naturally curious about the world. 2)form a question. after making an interesting observation, a scientific mind itches to find out more about it. .3).form a hypothesis. 4)conduct an experiment. 5)analyse the data and draw a conclusion.

107.1 mhz has higher energy photons. the photon energy increases directly proportional to frequency. however if the station operating on 90.5 mhz transmitter's power is 1.184 times or higher than that of the station operating on 107.1 mhz transmitter's power, then the 90.5 mhz signal will have higher energy because the additional photons makeup the difference. the total energy in electromagnetic radiation is the product of the energy per photon and the number of photons (i.e. amplitude of the wave) in the radiation.