2. A boy walks from one corner to the opposite corner on a soccer field by fist walking 50 m north and then 100 m west. 2.1 Define "displacement". 2.2 Determine the distance that the boy walked, 2.3 Use a scale diagram to determine the boy's displacement, 2.4 Explain how his displacement can be zero even though his distance isnot zero.​

Modern physics a photon emitted from an excited hydrogen atom has an energy of 3.02 electron volts. which electron energy-level transition would produce this photon? a. n=1 to n=6 b. n=2 to n=6 c. n=6 to n=1 d. n=6 to n=2 i chose b but the correct answer is d can someone tell me why? and what's the difference?

This is important. 1. which of the following is an si base unit for measuring length? (2 points) inch gram meter mole 2. which of the following units for distance is an si unit? (2 points) centimeter foot inch yard 3. which of the following tools should a scientist use to measure an object in meters? (2 points) electronic balance pan balance tape measure thermometer

Looking at this barometer, is the air pressure high or low? what type of weather would you expect? high, bad low, bad high, good low, good