True or False?

Atoms of the same element can have

different numbers of neutrons and

electrons.

A Van de Graaff generator is charged with 2.82 x 106C of positive charge. The magnitude of the electric field 0.750 m to the right of the Van de Graaff generator a. bc x 100 N/C The values of a, b, c, and d are: (in order) 5.

If someone smacked her thumb with a hammer what cents provides her brain with the information about the pain she feels?

Which of the following is the reason why the magnetic flux through the bracelet is changing? a. The magnitude of the magnetic field is changing. b. The magnetic field is changing direction with respect to the bracelet. c.

Compared to yellow light, orange light has A. the same frequency. B. a faster wave velocity. C. a longer wavelength. D. a different polarization.

Which of the following is an example of a material whose atoms strongly hold on to electrons

Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-rupees coin and a one-rupee coin?

In a laboratory, you determine that the density of a certain solid is 5.23*10-6kg/mm3. Convert this density into kilograms per cubic meters.

List the solar objects in correct order from the Sun. Venus Earth Mercury Saturn Neptune Mars Jupiter Asteroid Belt The Sun Uranus

The power exerted by a muscle is the product of the force exerted and the velocity of contraction. The area of which of these shaded regions represents the power exerted while a weight is lifted at maximum speed?

How can you tell one element from another?