Joe spend 8 on lunch and 6.50 on dry cleaning. He also buys 2 shirts that each cost the same smount. joe spend a total of $52 what is the cost of each shirt

The bending of a wave as it moves from one medium to another is called

In which range is the peak wavelength of a star that is much hotter than the sun most likely to be?

What is a magnetic field and how does it interact with magnetic materials?

A piano tuner stretches a steel piano wire with a tension of 765 n. the steel wire has a length of 0.900 m and a mass of 6.75 g. part a what is the frequency f1 of the string's fundamental mode of vibration?

A paper weight is dropped from the roof of a block of multi storey flats. each storey being 3 metre high. it passes the ceiling of the 20th storey at 30m/s. if g=10m/s2, how many storeys does the flat have?

What equation gives the velocity at a specific time for an object with constant acceleration?

Consider the incomplete equation below Superscript 4 subscript 2 upper H e plus superscript 4 subscript 2 upper H e right arrow question mark.

When the temperature of a gas decreases at constant volume, its a. pressure increases. b. mass increases. c. pressure decreases. d. particles move faster.

A 12-V battery is connected to an air-filled capacitor that consists of two parallel plates, each plate has an area of 7.60 cm2 . The separation between the plates of the capacitor is d = 0.30 cm.

Why do you believe knowing how elements and compounds react together Is essential In every day matters?