Dan was running and he tripped and hurt his knee. the pain signals were carried to his brain by the?

Sodium chiorine is an ionic compound. If you drop a large crystal of sodium chloride on the floor. What would happen

When a guitar is tuned to adjust it pitch what is it that is changed? A) its wavelength B) Its frequency C) Its amplitude D) its linear density

What is. A may work in a lab pr in the field and conduct research to discover new things

Abdul is pushing his 20. kg little brother on a merry go round with a radius of 2.0m. If his little brother is on the edge of the merry go round and has a angular momentum of 360 kg m^2sec. what is his speed?

Which sSelect the correct answer. tatement is true if the refractive index of medium A is greater than that of medium B?

Henry Heavtweight weighs 1000 N and stands on a pair of bathroom scales so that one scale reads twice as much as the other. What is the greater scale reading? What is the lesser scale reading?

A tape dispenser is an example of which simple machine pulley lever inclined plane screw

A brick with a mass of 20 kg and a weight of 196 N is released on a frictionless plane at an angle of 30°. What is the acceleration of the brick? A. 4.9 m/s2 B. 5.6 m/s2 C. 8.5 m/s2 D. 9.8 m/s2

As light reflects off a mirror the angle between the incident ray and reflected ray of light is 50°. What is the angle of reflection?

In what part of the earth does convection occur?