Why is described as having a deal wave particle nature. Which piece of evidence provides support for the model of light as a particle?

Astudent pushes on a 20.0 kg box with a force of 50 n at an angle of 30° below the horizontal. the box accelerates at a rate of 0.5 m/s2 across a horizontal floor. what is the value of the normal force on the box? 200 n 243 n 156 n 225 n

What is the speed of an object at a given moment?

What are the necessary conditions for fusion?