Two boys push on a box. They each push to the left with a force of 50 N. At the same time, a third boy pushes on the box, to the right, using a force of 50 N. What is the net force on the box?

Conduction occurs when thermal energy is transferred by the movement of A waves B molecules C liquids D fluids

Under what condition the average speed of a body be equal to its average velocity?

A single force acts on an object. The components of this force act along the + x-axis and the - y-axis. The single force that will bring the object into equilibrium has components that act along the a. + x-axis and + y-axis. C. - x-axis and + y-axis.

Analyzing Forces Using Free-Body Diagrams 1. Imagine two books sitting at rest on top of each other on a table. The top book has a mass of 2 kg, the book under the top book has a mass of 3 kg, and the table has a mass of 20 kg.

Which of the following best describes the inheritence of sex-linke trait? A. reccessive alle carried by females that affecfts only males. B. A allelle carried by females that affects only males. C.

Which answer choice best explains why nuclear reactions release more energy than chemical reactions? Electrostatic forces of repulsion are thousands of times stronger than gravitational forces.

A train's mass is 18181.81 kg. What is its weight?

a 3.0m long frictionless pendulum swings with a maximum angluar displacement of 10 degree from the vertical. at its lowest position the kinetic energy of the pendulum is 20.0j what is the potential energy of the pendulum when the kientic energy is 5.

How are hypotheses and theories related to each other?

a bike can climb the inclined road at uniform speed of 72 km/hr by applying force 500N what will be the power applied by the bike?