Gravity is an attractive force that decreases as the mass of an object increases.

a. True

b. False

1. What conditions must exist in order for a force to do work on an object?

What is one similarity between convection and conduction?

In levelling, the following staff readings were observed involving an inverted staff, A = 2.915 and B = - 2.028. What is the rise or fall from A to B (only enter numeric answer, no alpha) ?

Determine the stopping distances for an automobile going a constant initial speed of 95 km/h and human reaction time of 0.50 s. for an acceleration a = - 3.

A 5 ml sample of water has a mass of 5g what is the density of the water

How do the charges compare when two objects are charged through friction? The objects become oppositely charged and have equal amounts of charge. The objects become positively charged and have equal amounts of charge.

Potential energy and kinetic energy are forms of what kind of energy? 1. chemical 2. nuclear 3. electromagnetic 4. heat 5. mechanical

Which element has the greatest number of valence electrons available for bonding?

A sailboat starts from rest and accelerates at a rate of 0.13 m/s2 over a distance of 458 m. (a) Find the magnitude of the boat's final velocity. m/s (b) Find the time it takes the boat to travel this distance. s

The emission of a Beta particle has the effect of? Decreasing mass by one unit Increasing mass by one unit No change in mass Adding a proton to the nucleus Adding a proton of zero mass to the nucleus