Bragg angle corresponding to the first order reflection from plane( 1, 1, 1) in a crystal is 30° when X-rays of wavelength 0.175 nm is used. Calculate the interatomic spacing.

The earth is constantly spinning on its axis, like you might spin a basketball on your finger. it is this spinning of the earth that causes

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2