A student pushes a box with a total mass of 50 kg. What is the net force on the box if it accelerates at 1.5m/s2? A. 51.5 N B. 48.5 N C. 75 N D. 33.3 N

An object at a temperature of 3° kelvin emits thermal radiation. What region of the electromagnetic spectrum would the peak of this emission fall in?

Which of the following decreases the dissolving rate of a solid in water?

A wave of sound proceeds through the auditory canal to the inner ear where receptor neurons on the basilar membrane are stimulated. The neurons send a message to the brain.

g 'A fire hose ejects a stream of water at an angle of 31.6o above the horizontal. The water leaves the nozzle with a speed of 29.3 m/s.

Which of the following is an example of a. Situation in which an egg is receiving thermal energy through convection A-the egg is kept warm by its mother in the nest B-an egg is cracked on a hot sidewalk and starts to cook C-the egg is cooked in a

Measurements of how orbital speeds depend on distance from the center of our galaxy tell us that stars in the outskirts of the galaxy. True or False

Identify what is required to calculate the atomic number and atomic mass of an element

What device is used to measure the current in a circuit

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

An object moves from the position + 16m to the position + 43m in 12s. What us the total displacement