What does it mean to have created a replicable experiment

A vernier caliper consists of two scales: A main scale and a vernier scale. The vernier scale is made by dividing 19 main scale divisions into 20 parts. The least count of the main scale is 1mm. a) What is the least count of this vernier caliper.

Positronium is an atom composed of an electron and a positron (mp = me, Q = + e). Calculate the distance between the particles and the energy of the lowest energy state of positronium.

Explain how the global sea surface temperature is affected by solar activity.

Given a current equilibrium in the market for wheat, what happens to the equilibrium price and the equilibrium quantity if the supply for wheat is increased?

Which of these is formed from lava flows

5. The number of bonds an atom can form is represented in an electron dot diagram by A. pairs of dots B. unpaired dots C. total number of dots

A resistor has a current of 2 amperes when connected to a single battery. If a second identical battery is connected in series with the first, what is the current through the resistor? a) Still 2 amps b) 4 amps c) 1 amp d) no current

Describe some basic guidelines for safe PRE

Why is the liver important in digestion

A building 190 feet tall casts a 30 foot long shadow. if a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the person's eyes to the top of the building (to the nearest hundredth of a degree) ?