As two tuning forks of different frequencies are sounded together, the observed periodic changes in loudness are caused by what?

What is one benefit of using tides for energy? alteration to tides in area reduced greenhouse gases increased carbon dioxide production low cost to build a tidal power plant who ever answers in two minutes gets brainliest

Rays traveling parallel to the principle axis of a concave mirror will reflect out through the mirrors focus? a. true b. false

In a football game, running back is at the 10 yard line and running up the field towards the 50 yard line, and runs for 3 seconds at 8yd/s. what is his current position (in yards) ?

When a mortar shell is fired with an initial velocity of v0 ft/sec at an angle α above the horizontal, then its position after t seconds is given by the parametric equations x = (v0 cos α) t, y = (v0 sin α) t - 16t^2.

Type of energy transforms into chemical energy by plants

One disadvantage of this type of power is that it still pollutes the air. biomass geothermal power hydropower solar power You want to create a new warming appliance that is safe.

A small rock remains at rest in outer space while an astronaut pushes horizontally on it with a force of 20 N. Which of the following must be true? A. There is another horizontal force acting on the rock. B.

If an igneous rock has very large crystals of minerals that you can see when looking at it, which type of igneous rock is it

You have a 60-foot roll of fencing and a large field. You want to make two paddocks by continuing the fencing down the middle of a rectangular enclosure. What are the dimensions of the largest such enclosure you can make?

Crystallization is a separation technique used to produce rock candy from a sugar solution. true or false