A 60kg of weight person climbs stairs of total height 20m in 2min. calculate the power

What two minerals would be most useful as grains on sandpaper

Determine the change in electric potential energy of a system of two charged objects when a - 2.1-C charged object and a - 5.0-C charged object move from an initial separation of 420 km to a final separation of 160 km

Janice's mother often lets her 6-month-old baby sit in front of the television, watching episodes of Sesame Street. What is Janice likely learning from the episodes she watches? A. how to count B. very little C. new vocabulary words D. how to read

Movement of a stationary object

An interstate highway loop meets the primary route at both ends. the first digit of its route number is always

A glass window is a clear object that light passes through as it travels in a straight line. This is a good example of A. refraction of light. B. transmission of light. C. absorption of light. D. reflection of light.

Why is net force a vector sum A. All forces have direction and magnitude B. Forces can only be attractive C. All forces are contact forces D. There are four fundamental forces

Does the elf owl's small size allow it to live in cacti

If grapefruit juice has a ph of 3.0 and egg white have a ph of 8.0, which contains more h + ions? how many more?

Consider a single photon with a wavelength of λ, a frequency of ν, and an energy of e. What is the wavelength,? Consider a single photon with a wavelength of λ, a frequency of ν, and an energy of e.