A sodium ion has 11 protons and 10 electrons. what is its charge?

What is the velocity of a wave with a wavelength of 1.5m and a frequency of 500 Hz

Critical thinking! Applying Concepts A desk exerts an upward force to support a computer resting on it. Does this force do work? Explain.

Which organelles is used to transport materials through the cell

The y-component of a projectile's velocity is 12.1 m/s. When the projectile once again passes by the height from which it was launched, what is the y-component of its velocity? impossible to calculate without knowing the x-component 0 m/s 12.

A fireman is sliding down a fire pole. As he speeds up, he tightens his grip on the pole, thus increasing the vertical frictional force that the poleexerts on the fireman.

Which interaction of nature binds neutrons and protons into nuclei? A. strong B. weak C. electromagnetic D. gravitational

Why does icing sugar dissolve more rapidly than granular sugar?

At t = 0 the components of a radio-controlled car's velocity are vx = 0.5 m/s and vy = 1.2 m/s. Find the components of the car's velocity at t = 4.

2) A window washer pulls themselves upward using a bucket pulley apparatus. A) How hard must pull downward to raise herself slowly at a constant speed? B) If she increases this force by 15%, what will her acceleration be?

A star with an original mass of 8 to 25 solar masses will ultimately become a? a) red giant b) white dwarf c) neutron star d) main sequence star