What is the focal length of a concave mirror that magnifies, by a factor of + 3.2 an object that is placed 30 cm from the mirror?

A radio station transmits to a receiving antenna. The radio wave sent is a

If you could find a bathtub big enough for Saturn, the planet would Group of answer choices explode due to its liquid metallic hydrogen. precipitate more helium. float. sink due to its metallic interior.

Seasons are caused by the Earth's tilted axis Earth's elliptical orbit moon's gravitational pull Earth's wobble

Sarah cycles 30 miles to her grandmother's house at a steady speed of 10 mph. If she leaves home at 2:00 pm, what time will she arrive?

Which example is a naturally occurring magnet A a nail B a piece of iron C aluminum D earth

When does a scientist create the conclusion?

When using a simple machine, the force you must overcome. A simple machine usually multiplies the effort force to exceed the this. Example: Lucy lifts a sack of potatoes using a pulley. The weight of the sack of potatoes is this.

How is ecology diffrent from earth science

Which theory was first proposed by Albert Einstein? A. the theory of special relativity B. the theory of universal gravitation C. the theory of inertia D. the theory of radioactivity ... the answer is A i just found out

For each of the following, describe the relationship as directly or inversely proportional: a) wavelength vs. frequency b) wavelength vs. energy c) frequency vs. energy ... ?