The binding energy of a nucleus is defined as one of the following.Is this definition

Q-1: The binding energy of a nucleus is defined as one of the following.Is this definition:

1) the energy equivalent to its mass
2) the mass difference between its neutrons and protons
3) the energy needed to remove a neutron from the nucleus
4) the difference between the mass of the nucleus and the sum of the masses of its protons
and neutrons
ANSWER: 4 -- THE DIFFERENCE BETWEEN THE MASS OF THE NUCLEUS
AND THE UM

Q-2: In the equation of a nuclear reaction, all but one of the following quantities are equal to each other on both sides of the equation. Which quantity is NOT conserved:

1) the net electric charge
2) the total mass-energy
3) the number of protons
4) the number of nucleons
ANSWER: 3 -- THE NUMBER OF PROTONS

Q-3: Which of the following terms refer to the amount of heat needed to raise the temperature of a unit mass of a substance through one degree?

1) Heat of fusion
2) Liquification heat
3) Internal heat
4) Specific heat
ANSWER: 4 -- SPECIFIC HEAT

Q-4: There is evidence that quarks come in how many flavors? Is it:

1) 1
2) 3
3) 5
4) 7
ANSWER: 3 -- 5

Q-5: To develop the correct mathematical description of the distribution of radiated energy of a blackbody with respect to wavelength for a given temperature, Planck found it necessary to assume that the molecular oscillators of the blackbody emitted and absorbed:

1) no radiant energy
2) radiant energy in discrete units or quanta
3) radiant energy in a continuous form
4) none of the above.
ANSWER: X -- RADIANT ENERGY IN DISCRETE UNITS OR QUANTA

Q-6:  How many torr are there in one atmosphere?

ANSWER: 760

Q-7:  A stone weighing 10 Newtons is sitting on the side of a hill that is at a 30o angle with the horizontal. What is the magnitude of the component of the stone's weight parallel to the side of the hill.

ANSWER: 5 NEWTONS

Q-8:  A curve in the road has a radius of 500 meters, and is banked at an angle of O (read: "theta") for a traffic speed of 90 kilometers per hour, or 25 meters per second. Is O:

1) Less than 2o
2) Between 2o and 5o
3) Between 5o and 10o
4) Greater than 10o The tangent of 2o is 0.035, the tangent of 5o is 0.09 and the tangent of 10o is 0.18.
ANSWER: Y -- BETWEEN 5o AND 10o

Q-9: Laura weighs 50 Newtons and pushes against a stationary brick wall that weighs 1,000 Newtons. Her arm is two-thirds of a meter long. According to the laws of physics, how much work does she do?

ANSWER: NONE or ZERO