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2. Suppose the distance in question 1 is tripled. What happens to the forces between the two objects?
If you divide the total distance traveled on a car trip (as determined by the
odometer) by the time for the trip, (a) are you calculating the average speed or the
magnitude of the average velocity? (b) Under what circumstances are these two
quantities the same?
A solid cube has its superficialExpansivity as 1.01*10-6 K-1 Find it's cubic expansivity
For the object whose motion is described in Problem 2.29, find its velocity at the following times: (a) 3.0 s,. (b) 10 s, and (c) 24 s.
An object is placed at the zero-mark of a meterstick while its image appears at the +15 cm mark using
a convex mirror with a focal length of magnitude |𝑓𝑓| = 10 cm. Where is the mirror placed?
A cat steps off a ledge and drops to the ground in 1/2 second. What is its speed on striking the ground and how high is the ledge from the ground?
The pressure of the atmosphere is 1.02 x 105 Pa.
Calculate the pressure of the air in the flask
What is the electrostatic force of attraction between a 5.2 X 10 4 C charge and a 7.1 X 10 -2 C charge if they are separated by a distance of 7 meters (m)?
Two ball bearings with opposite charges are 1.11 m apart on the floor. What are their charges if they are attracted to each other with a force of 5.11 N?
The surface of a lens is convex on one side, with a radius of curvature of 50
cm, and concave on the other side, with a radius of curvature of 15 cm. If it is made of a
certain plastic with a refractive index of 1.6, find the focal length of this lens.
