What are the contour lines on a contour map?

Shelly experiences a backward jolt when the driver starts the school bus. which of the following explains this phenomenon? a. the inertia of shelly b. the inertia of the bus c. the normal force of the seats on shelly d. the net force acting on shelly in a backward direction e. a zero net force acting on shelly

In 1980, alfa romeo introduced the first system to smooth a rough idle caused by ignition and camshaft timing changes.

In positive numbers less than 1, the zeros between the decimal point and non zero are significant