Which of the following is not a part of dalton s atomic theory?

a. all elements are composed of atoms.

b. atoms of the same element are alike.

c. atoms are always in motion.

d. atoms that combine do so in simple whole-number ratios.

Find the work w1 done on the block by the force of magnitude f1 = 65.0 n as the block moves from xi = - 3.00 cm to xf = 3.00 cm.

6. Your 60-watt light bulb is plugged into a 110-volt household outlet and left on for 3 hours. The utility company charges you $0.11 per kiloWatt•hr. Calculate the cost of such a mistake

The current in a hair dryer measures 21 amps. The resistance of the hair dryer is 8 ohms. What is the voltage?

Explain teen pregnancy from a sociological perspective.

A transverse wave on a string is described with the wave function y (x, t) = (0.59 cm) sin[ (1.80 m-1) x - (6.00 s-1) t]. (a) What is the wave velocity? (Enter the magnitude in m/s.

Why will marchers at the end of a long parade following a band be out of step with marchers nearer the band

How would you explain photosynthesis to a new student in class

If the abosolute of a gas is 600 k, the temperature in degrees Celsius is

How does an electromagnetic wave propagate itself? a. A changing magnetic field induces an electric field perpendicular to the magnetic field. b. A changing electric field induces a magnetic field perpendicular to the electric field. c.

Which of the following is an example of convection? A. hot air rising and cooler air falling B. a hot object transferring heat to a cooler one C. a hot oven warming the air around it D. the rays of the Sun warming the earth