Calculate and fill in the missing values in the table below

How do deep-field images contribute to our understanding of the evolution of the Universe?

Briefly discuss:

(i) The principles of detecting thermal neutrons utilizing a Si detector.
(ii) The physics of fast neutron detection.
(iii) The principle of operation of strip detectors for charged particle detection and
their application.

Describe the differences in age, color, metallicity, and location of Population I and Population II stars. Can you explain why we would expect the age, color, and metallicity of stars to be interrelated?

A charge of -3.00 nC is placed at the origin of an xy-coordinate system, and a charge of 2.25 nC is placed on the y axis at y = 3.60 cm .

PART A -

If a third charge, of 5.00 nC , is now placed at the point x = 3.50 cm , y = 3.60 cm find the x and y components of the total force exerted on this charge by the other two charges.

PART B-

Find the magnitude of this force.

PART C-

Find the direction of this force.

Create a timeline outlining the discovery (or invention) of World's first solar power station opened in France (1969 Energy)

Directions:

What is the Invention or Discovery about?

What category does the Invention fall into? detail (Entertainment, Computers, Household, Transportation, Energy, Other)

When was it invented?

Who Invented It?

What does it do?

What was the purpose for the research that led to the invention or discovery? Why do it?

How did the invention either make life easier or affect the world in a positive or negative way?

Briefly discuss:

(i) Spencer cavity theory and when application of this theory is essential for
dosimetry.
(ii) Phoswitch detector, its principle of operation using a diagram and its application
in PET.
(iii) What effect does a magnetic field have on the response of a PM tube?

1.) A playground merry-go-round with a radius of 1.75 m and a rotational inertia of 124.5 kgm² is stationary. A robot with a mass of 32.5 kg gets on and walks around the edge of the merry-go-round. How many revolutions around the merry-go-round must the robot make in order for the merry-go-round to make two full revolutions?

2.) A student has an idea for a special record player that uses no electricity. The base is a circular turntable that floats on small jets of air after being set in motion such that it spins with no friction. This disk-like turntable has a mass of 3.70 kg and a radius of 37.0 cm. The student gives it a quick push in the clockwise direction such that it is freely spinning at an angular speed of 23.0 revolutions per second. A smaller circular record has a radius of 19.0 cm and a mass of   1.90 kg. This record is not rotating when it is suddenly dropped straight down onto the turntable so that the axis of rotation passes through the center of the record (as shown). Assume the rotational inertia for a uniform circular disk can be found as (1/2) MR². What is the final angular speed of this record and freewheeling turntable?

A properly insulated, tightly wound, 98 cm solenoid is made from wire that is 0.49 mm in diameter. When steady current flows through the solenoid, a potential difference of 43 V is measured across the solenoid terminals. The field inside the solenoid is measured to be 0.45 mT, and the cross section of the solenoid is 3 cm².

What is the resistivity of the wire material?

Please explain thoroughly as I am confused. Thank you

Write the two laws of thermodynamics. Write the two laws in terms of the efficiency.

For the efficiency values chose from these options: higher or equal to 1 (efficiency ≥ 1), lower or equal to 1 (efficiency ≤ 1), higher than 1 (efficiency >1), or lower than 1 (efficiency <1). Explain.

If a ball falls in vacuum from a certain height describe the total energy, the kinetic energy, and the potential energy during the fall. Describe the energy values at the initial point (highest point), at an intermediate point during the fall, and at the final point (ground level). Make sure to mention how the free fall in vacuum is different from a real life fall.

There are some patients with keratoconus that have corneas that are abnormally thin and bulge out into a cone shape. Consider a patient whose eye has a moderate case of keratoconus. The refractive power of this eye’s cornea is +50 D.

Part 1.) How far in front of the patient’s eye is its' far point, assuming the eye lens is in its fully relaxed state with a refractive power of +2 D? The eye is 25 mm in diameter. Show your work, answer should be in cm or meters.

Part 2.) What is the refractive power of the contact lens you would prescribe for the patient’s eye? Show your work.

1: A woman backs her van out of her garage with a constant acceleration of 1.1 m/s². Assume that her initial motion is in the positive direction.

Part (b) If she then brakes to a stop in 0.85 s, what is her acceleration in meters per square second?

2: A driver in Germany is on a street that has a posted speed limit of v_m = 65 km/hr and is driving over the speed limit by v_c = 11 km/hr. A vehicle pulls out of a parking place into the street in front of the driver d = 11 m in front of the driver and stops there. The driver immediately slams on the brakes and begins decelerating at a rate of a_b = 3.5 m/s².

Part (c) Enter an expression for the time, t, it will take the driver to come to a stop after applying the brakes, in terms of the defined quantities

Part (d) How fast, in meters per second, is the driver driving when he hits the vehicle in front of him?

Please write a report on the topic of Electromagnetic wave with Echo device and put it in the file of word  and

Note preferably if it contains pictures and sources, thank you