Recent content by sarahhhh

Can someone please help me with this question?! thank you! How do the waves in front of a moving source differ from those behind the moving source?

please help! :(

Homework Statement There are two ways to find how much work is done overcoming friction. Please describe both methods. Homework Equations Wf = Ff x d The Attempt at a Solution I know one method-- you have you know the force overcoming friction. You would use (Wf = Ff x d). But i...

yes! thank you so much :)

please help me! :(

Homework Statement What would be the period of a satellite moving around the sun between the orbits of the Earth adn Mars at a mean distance of 2.00 x 10^11 m? Homework Equations R^3/T^2 = 3.35 x 10^18 m^3/s^2 for all objects orbiting the sun. The Attempt at a Solution I am so...

Homework Statement What provides the force that causes the centripetal acceleration of a satellite in orbit? 2. The attempt at a solution I'm really confused about the answer to this question because in class my teacher only taught us how to solve satellite problems if we are given...

Homework Statement 1. What happens to the gravitational force between two masses when the distance between the masses is doubled? 2. According to Newton’s version of Kepler’s third law, how does the ratio (T^2/r^3) change if the mass of the sun is doubled?

Newton's Law. thanks!

homework help! Homework Statement 1. The force of gravity acting on an object near Earth’s surface is proportional to the mass of the object. Why does a heavy object not fall faster than a light object? 2. What happens to the gravitational force between two masses when the distance...