How can eclipsing binary stars be identified?

They are brighter than any single stars.

They are cool red stars.

They are all white dwarfs.

They become dimmer at regular intervals.

Which of the following proved that the de broglie's equation was correct? A) Einstein theory of relativity B) Planck's equation C) quantum mechanics D) Davisson-Germer experiment

How does hypersensitive response differ from systematic acquired resistance?

Some studies suggest that the upper frequency limit of hearing is determined by the diameter of the eardrum. the wavelength of the sound wave and the diameter of the eardrum are approximately equal at this upper limit.

Two particles A and B start from rest at the origin x = 0 [ft] and move along a straight line such that a = (613) Ift/s) and ag = (1212.8) [ft/s), where t is in seconds.

The indicates that 70% of the Sun's radiation is contained on Earth and 30% is reflected back into space.

The emf produced in a generator is Vemf = 25 sin 377t. What is the frequency of rotation of the circular coil? 50 Hz 60 Hz 25 Hz 15 HZ

If a 1.0-kg-mass block is on the left cap, how much total mass must be placed on the right cap so that the caps equilibrate at equal height?

By what factor would your weight be multiplied if the earth were1/2 as massavise and the diameter was unchanged

Why does it seem harder to start sliding a couch across a carpeted floor than it oes to keep it moving?

Energy due to the motion of an object is called