Two equal mass object experience a totally inelastic elastic collision. Mass 1 has an initial velocity of 10 m/s in the negative y-direction. Mass 2 has an initial velocity of 10 m/s in the positive x-direction. The collision occurs at the origin. What is the magnitude and direction of the velocity of the combined mass? What is the kinetic energy conserved in the collision? If not what fraction of kinetic energy was lost?

Launch a book from a cannon which is inclined at 45 degree to the horizontal and facing east. Write pertinent formulas and calculations that explains the motion of the book through space. Consider the effects due to: gravity near the surface of the Earth, air friction, the rotation of Earth and pseudo forces, the shape of the book and its rotation, universal gravitation, special relativity, and chaos theory. Consider a large range of initial velocities: from so small that the book just barely leaves the cannon to so large to consider special relativity.

a) A tumour located at a depth of 10 cm is treated using a non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy, with a single 5 cm x 5 cm beam. Compute the maximum dose received anywhere in the patient's anatomy. Refer to the attached table for PDD data. (5 pts) b) At what depth does the maximum dose occur? Explain. (5 pts) b) Compute the dose at a depth of 5 cm along the beam axis. (5 pts) c) Would this be a good treatment strategy? Explain. (5 pts)

a) A tumour located at a depth of 10 cm is treated using a non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy, with a single 5 cm x 5 cm beam. Compute the maximum dose received anywhere in the patient's anatomy. Refer to the attached table for PDD data. (5 pts)

b) At what depth does the maximum dose occur? Explain. (5 pts)

c) Compute the dose at a depth of 5 cm along the beam axis. (5 pts)

d) Would this be a good treatment strategy? Explain.

Percent Depth dose (in %) table for Co-60 beam for different depths and field sizes.

A tumour located at a depth of 10cm is treated using a non-isocentric technique with a Co-60 machine, to a dose of 1.8 Gy, with a single 5cmx5cm beam.

a) Compute the maximum dose received anywhere in the patients anatomy. Refer to the attached table for PDD data.

B) at what depth does the maximum dose occur? Explain

c) computer the dose at a depth of 5 cm along the beam axis.

d)would this be a good treatment strategy

NEED ANSWERED ASAP

A tumour located at a depth of 10 cm is treated using a non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy, with a single 5 cm x 5 cm beam. Compute the maximum dose received anywhere in the patient's anatomy. Refer to the attached table for PDD data.

a) At what depth does the maximum dose occur?

b) Compute the dose at a depth of 5 cm along the beam axis

a tumour located at a depth of 10 cm is treated using a non-isocentic technique with a Co-60 machine, to a dose of 1.8 Gy, with a single 5cm x 5cm beam. Compute the maximum dose received anywhere in the patients anatomy.

b)At what depth does the maximum occur? Explain

c) compute the dose at a depth of 5 cm along the beam axis

d) Would this be a good strategy? Explain

percent dose (in %) table for Co-60 beam for different depths and field sizes

Two identical double-pipe heat exchangers are constructed of a 2-in standard schedule 40 pipe placed inside a 3-in standard pipe. The length of the exchangers is 10 ft; 40 gal/min of water initially at 80◦F is to be heated by passing through the inner
pipes of the exchangers in a series arrangement, and 30 gal/min of water at 120◦F and 30 gal/min of water at 200◦F are available to accomplish the heating. The two heating streams may be mixed in any way desired before and after they enter the heat exchangers. Determine the flow arrangement for optimum performance (maximum heat transfer) and the total heat transfer under these conditions. Use both NTU and LMTD methods.

1) Sinusoidal Motion Properties in Spring Mass System- A 200g mass hangs from vibrating spring at lowest point of 3cm above table and at it's highest point at 12cm above table. It's oscillation period is 4seconds. Determine the following:

a. The spring constant in terms of T (period)

b. The maximum velocity magnitude and maximum acceleration magnitude

c. The velocity magnitude at 10cm above table

d. The vertical position, velocity magnitude and acceleration magnitude at 5 seconds

A toroid with inner diameter of 3 cm, outer diameter of 5 cm, and height of 0.1 cm is made of a body-centered-cubic (bcc) paramagnetic material with lattice parameter equal to 0.5 nm. The toroid is wrapped by a copper wire in 20 turns. If each atom of the magnetic material has a magnetic moment of 1.5µB (Bohr Magneton), (a) (1.5 pt) What is the saturation magnetization (in A/m) of the material? (b) (1.5 pt) If a current of 2 A is flowing in the winding, what are the magnetic fields (in A/m) in the toroid along its outer and inner diameter, respectively? (c) (1.5 pt) What is the magnetic susceptibility of the material if the inner diameter region begins to saturate at 2 A? (d) (1.5 pt) What is the magnetic flux density (in Tesla) along the outer diameter when the inner diameter is saturated at 2 A as in (c)?

Use the band structure diagram for each element below to explain:

a. Sodium, which has two atoms in a bcc (conventional cubic) unit cell, is a metal;

b. Calcium, which has four atoms in a fcc (conventional cubic) unit cell, is a metal;

c. Diamond, which has eight atoms in a fcc (conventional cubic) unit cell with a basis, is an electrical insulator, whereas silicon and germanium, which have similar structures, are semiconductors. Why is diamond transparent?

Consider two point charges located on the x axis: one charge, q1 = -13.0 nC , is located at x1 = -1.715 mm ; the second charge, q2 = 33.5 nCnC , is at the origin (x = 0).

What is (Fnet3)x the x-component of the net force exerted by these two charges on a third charge q3 = 50.5 nC placed between q1 and q2 at x3 = -1.075 mm ?

Your answer may be positive or negative, depending on the direction of the force.

A black hole with a mass of 10 9 M Sun brightens rapidly and increases its luminosity by a factor of two. Approximately how long would it take for an observer on Earth to see the black hole reach its maximum brightness?

a. 3 weeks b. 3 minutes c. 3 days d. 3 hours

Please briefly answer all the questions below ,and writing those more clearer and tidier (It is best to use typing)

1. This is a problem related to the spectroscopy.
   1. Please describe two different spectroscopic methods that use lasers as the light source.
   2. Applying conventional spectroscopy to nanoscale research usually suffers with low signal-to-noise ratio. Can you describe the practice(s) being used to overcome this difficulty and explain why it works?

The only visible spectral lines of hydrogen are the four Balmer series lines (transitions to n=2). We wish to cause hydrogen gas to glow with all its characteristic visible colors.

a) To how high an energy level must the electrons be excited?

b) Energy is absorbed in collisions with other particles. Assume that after absorbing energy in one collision, an electron jumps down through lower levels so rapidly so that it is in the ground state before the collision occurs. If an electron is to be raised to the level found in part (a), how much energy must be available in a single collision?

c) If such energetic collisions are to be effected simply by heating a gas until the average KE equals the desired upward energy jump, what temperature would be required?