Which of the following are scientific hypothesis

tides are caused by the moon,

earth rotates around it's axis because living things need an alternation of light and darkness,

chlorophyll makes grass green

Which item produces the magnetic field in the electromagnet? A switch Paperclips A magnet Wires

A projectile has an initial velocity of 110 m/s and a launch angle of 40o from the horizontal. The surrounding terrain is level, and air friction is to be disregarded. What is the maximum elevation achieved by the projectile?

What are the reactant (s) and product (s) of this reaction? Write down the equation, in words, for the formation of rust.

Supriya has a pre-paid electricity connection at home. On a sultry Sunday afternoon, she checks that she only has ₹9 left in the balance. She wants to use the air conditioner (AC), rated at 1.2 kW. The price of electricity is ₹10 / unit in her area.

If we have evidence that certain gases are harmful to our atmosphere, then why are we still using them?

Briefly describe why these searches suggest that star-like (our planet-like) objects and black holes cannot account for all the dark matter in the halo of our galaxy.

What two units of measurement are necessary for describing speed?

If 3,600 J of work is done in 3.0 s, what is the power? 0.00083 W 1,200 W 3,600 W 11,000 w

Julia rides her horse 12 miles in 45 minutes. What is her average speed in mi/min? Show Your Work.

What happens to the inertia of an object of its mass is decreased?