The hammering on a train track is often heard twice by workers farther down the track; first as the sound travels through the steel

and second as the sound travels through the air. This suggests which graph is true?

Magnetic poles cannot be: A) isolated B) cancelled C) relocated

Which gland in the endorcine system involved in dwarfism

What is the continuous flow of electric charge? A) voltage B) resistance C) potential difference D) current

A trebuchet wasa hurling machine builtto attackthe walls of a castle under siege. A large stone could be hurled against a wall to break apart the wall. The machine was not placed near the wall because then arrows could reach itfrom the castle wall.

3. A child slides down a slide and has 450 J of kinetic energy at the bottom of the slide. If all this energy was gravitational potential energy at the top of the slide and her mass is 49 kg, how tall is the slide?

Simone is walking her dog on a leash. The dog is pulling with force of 34 N to the right and simone is pulling backward with a force of 16 N

An object moves with velocity v (t) = t^2-8t+7 a) write a polynomial expression for the position of the particle at any time t greater or equal to zero.

Is a lack of thorns a mutation? (on a plant)

Why is the motion of an athlete moving along the circular path with Constant speed considered to be an accelerated motion?

What is a characteristic of atoms