Intermolecular forces question: match each of these substances with the property it exhibits.

the substances:
nh3
ch3ch2ch=ch2
ch3(ch2)5ch3
he

the properties:
largest dispersion forces
largest dipole dipole forces
none of the properties listed
the lowest boiling point

What is work? how much work is done to move an object 0 meters?

When a 5.0kg cart undergoes a 2.2m/s increase in speed, what is the impulse of the cart

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.