What is the force on a box that is being pushed to the right with 50n of force while, at the same time, being pushed to the left with a 20n force?

How was the planet neptune discovered?

A weightlifter can lift 220lbs. (assume 1kg weighs 2.2lbs) If he lifts the weight 2m above the floor, how much work did he do? Follow up: if the weightlifter lifts the weight 1.2 seconds, how much power does he generate?

Is a third quarter moon visible during the day? true or false?

Matter is anything that has mass and takes up space has a temperature that you can measure weighs more than one kilogram can be seen without a microscope @iGreen

Which term is equal to velocity change per second? A. gravity B. speed C. acceleration D. velocity

Who would use more energy in a day - someone who plays a lot of sport or someone who plays a lot of computer games

If you know the wavelength of any form of electromagnetic radiation, you can determine its frequency because?

What are the relationships of the different types of matter, mass, and the change in the average kinetic energy of particles?

A steamboat moves with velocity components of 6 km/hr along the x direction and 8 km/hr along the y direction. what is the direction of the steamboat with respect to the x axis?

What are 3 ways scientists can take to reduce bias?