a person is pushing a box across the floor, what kind of friction is occurring between the person's feet and the floor while the box is moving?

An unknown force is applied to a 12 kg. The force acts at an angle of 30 degrees above the horizontal.

Why are physicists hired to work at car companies?

Heavier objects will always fall faster than lighter objects. True or false

Bud, a very large man of mass 130 kg, stands on a pogo stick. How much work is done as Bud compresses the spring of the pogo stick 0.050 m?

What is the acceleration of a car that starts from rest and attains a final speed of 20 m '5 seconds?

In what way would a digital thermometer be preferable to those from a liquid-based thermometer? Digital thermometer readings are easier to use when performing calculations.

Why does the core of the sun contain more helium and less hydrogen than the surface of the sun?

What happens to a light ray passing through the center of a lens?

A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.870 m/s at an angle of 35.0° above the table, and it lands on the magazine 0.0770s after leaving the table. Ignore air resistance.

A force of 5 N accelerates an object. The object's mass is 50 g. What is the acceleration of the object? (Formula: F=ma)