Why might acting happy actually make one happy

2. Does the bowling ball have more potential energy or kinetic energy as it is half way through its fall .

a source is producing 15 waves in 3.0. s the distance between a crest and a trough is 10.0 find the frequency the wave length and the velocity of the wave

World class speed skaters can skate a 3,000-m course in about 4 minutes. What is their average speed for this course? A. 12.5 m/s B. 1.33 m/s C. 1.25 m/s D. 13.3 m/s

Which of the following training methods brings digital elements into the physical world to enhance the information and context that people experience? a. chatbots b. augmented reality c. artificial intelligence d. adaptive learning

A barium atom loses two electrons what charge does it have

You pull a simple pendulum of length 0.225m to the side through an angle of 3.50∘ and release it. Part A How much time does it take the pendulum bob to reach its highest speed? Take free fall acceleration to be 9.80 m/s^2.

What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10m

What is the force on a 1-kg ball that is falling freely due to the pull of gravity

Which would react chemically by forming an ionic bond? A. 2 chlorine atoms with 7 valence electrons each B. 1 neon atom with 8 valence electrons and 1 lithium atom with 1 valence electron C.

Which of these are considered an oxidizing mutagenic agent? x-rays benzopyrene gamma rays