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The length and width of a rectangle are 1.125 m and 0.606 m, respectively.  Multiplying, your calculator gives the product as 0.68175.  Rounding properly to the correct number of significant digits, the area should be written as

A 1.0-kg ball falls to the floor. When it is 0.70 m above the floor, its potential energy exactly equals its kinetic energy. How fast is it moving?

Particles 1, with charge q1, and 2, with charge q2, are on the x axis, with particle 1 at x = a and particle 2 at x = −2a. For the net force on a third charged particle, at the origin, to be zero, q1 and q2 must be related by q2 =:

The displacement versus time for a certain particle moving along the x axis is shown. In the time interval from 4 to 5 s the particle is:

A projectile is launched with an initial velocity of 60.0 m/s at an angle of 30.0° above the horizontal.  How far does it travel?

A wheel of radius 1.0 m is rotating with a constant angular speed of 2.0 rad/s.  What is the centripetal acceleration of a point on the wheel’s rim?

 In other space, a bowling ball and a ping-pong ball attract each other due to gravitational forces.  How do their accelerations compare?

Determine the number of significant digits in the number 200.02.

A projectile in flight explodes into several fragments.  The total momentum of the fragments immediately after this explosion:

An airplane of mass 2867 kg flies at a constant horizontal velocity. The force of air resistance on it is 2225 N. What is the net force on the plane .