Physics

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Physics Questions and Answers

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How increased temperature (thermal vibrations and typical change in lattice parameter) would be expected to alter the diffraction pattern generally?
Give any two salient points addressed by Feynman.
Was Laura Bassi a scientist?
Is creationism validated through the lack of natural explanations for scientific laws?
Specifically, which of the following best expresses your view: i. Many physics concepts make a lot of sense and connect to everyday experience; but formulas are more of a problem-solving tool than...
A slider moves over a curved guide whose shape in the vertical plane is given by x equals beta multiplied by , y equals beta multiplied by cos (h ). Starting from x equals 0, the speed is observed...
What are washers, nuts, and bolts made of? a. aluminum b. zinc c. iron d. nickel
What is the role of atmospheric pressure in drawing of underground water by a hand pump?
Some of the branches of physics that you will study in this course investigate motion, the properties of materials, sound, light, electricity and magnetism, properties of atoms, and nuclear reactio...
A centrifugal pump provides a flow rate of 500 GPM when operating at 1760 rpm against a 200 ft head. Determine the pump's, a) Flow rate, b) Developed head and, c) Pump power if the speed increased...
When was Chien-Shiung Wu born?
Did Chien-Shiung Wu win the Nobel Prize?
Did Chien-Shiung Wu have children?
What do you mean by stereoscope?
What are the different physics applications in the following sports: 1. baseball: 2. basketball: 3. bowling: 4. cycling: 5. golf: 6. gymnastics: 7. ice hockey 8. swimming
When did Sally Ride become the first woman in space?
Who was Stephen Hawking?
What kind of scientist was Stephen Hawking?
What did Stephen Hawking study?
What did Stephen Hawking do for a living?
What degrees did Stephen Hawking have?
How did Stephen Hawking live so long with ALS?
What is a physicist who does experiments called?
What would you do if you could change one thing about the laws of physics and why?
What is laser and optics? What is their working principle and their usage?
Small wheels have been attached to the ends of rod AB and roll freely along the surfaces shown. Knowing that wheel A moves to the left with a constant velocity of 1.5 \ m/s, determine a) the angu...
Ring B has an inside radius r_2 and hangs from the horizontal shaft A as shown. Knowing that shaft A rotates with a constant angular velocity v_A and that no slipping occurs, derive a relation in t...
A particle moves along a path defined by the equation y= 3(sin(x/12(pi))) inches, where x is also in inches. The particle's velocity in the x-direction v(x) is a constant 3 inches/second. Find the...
The velocities of commuter trains A and B are as shown. Knowing that the speed of each train is constant and that B reaches the crossing 10 min after A passed through the same crossing, determine...
A 3 \ kg sprocket wheel has a centroidal radius of gyration of 70 \ mm and is suspended from a chain as shown. Determine the acceleration of points A and B of the chain, knowing that T_A = 14 \ N a...
A chain of length l and mass m lies in a pile on the floor. If its end A is raised vertically at a constant speed v, express in terms of the length y of chain which is off the floor at any given in...
Give some examples of applications, that resulted from work done by physicists. Does this include Radios, Televisions, CD's, Computers, etc?
1) Explain how the fundamental laws and principles of physics related to the complexity that we see in nature? 2) Explain how the laws of physics apply to other sciences such as biology, chemistry...
A force is applied to an initially stationary block of mass 1.75 kg that sits on a horizontal floor. The 53.5 N force is applied at ? = 32 ? angle. The coefficients of friction between the floor...
You have a mass of 71 kg and are on a 51-degree slope hanging on to a cord with a breaking strength of 165 N. (a) What must be the coefficient of static friction between you and the surface for you...
A rope 26 ft long is attached to two points A and B, 20 ft apart at the same level. A load of 250 lb is carried at the middle of the rope. What force is exerted on A?
A car stops 4 seconds after the application of the brakes while covering a rectilinear stretch 337 feet long. If the motion occurred with a constant acceleration a_{c} determine the initial speed...
Give at least one example of an application of each branch: motion properties of materials, sound, light, electricity, magnetism, properties of atoms, nuclear physics.
What types of physicists are there?
Which of the following sets do not come under the list of Fundamental Quantities in any system of units? a) length, mass, time b) length, time velocity c) length mass, velocity d) mass, time, v...
What is physics?
Which set cannot enter as fundamental quantity SIR: 1) length, mass, and velocity 2) length, time, and velocity 3) mass, time, and velocity 4) length, time, and mass.
What is fluid mechanics?
What happens when an unstoppable force collides with an immovable object?
Has string theory ever been proven?
Is quantum mechanics to physics what molecular biology is to biology?
What is the difference between resultant and equilibrium?
If atom is the basic unit of life, does that make biology a branch of physics?
Give a one-word term for: 1. changing momentum. 2. unimpeded motion of an object, falling under the influence of only gravity. 3. the phenomen that waves bend around the edges of an obstacle. 4. t...
What is theoretical astrophysics?
Why are general relativity and quantum mechanics incompatible?
Suppose a spaceship changes velocity relative to Earth, so that the duration of the laser pulses as seen on Earth is 7.40 x 10^{-6}s . What is the spaceship's velocity (m/s) relative to Earth.
What is an oil pressure transducer?
Identify the area of physics that is most relevant to each of the following situations. a) A high school football game b) Food preparation for the prom c) Playing in the school band d) Lightning in...
What is the accelerating voltage of an x-ray tube that produces x rays with a shortest wavelength of 0.0104 nm? kV
Distinguish between atomic physics and nuclear physics.
Distinguish the difference between atomic physics and nuclear physics.
How can a charged atom (an ion) attract a neutral atom?
Why doesn't quantum mechanics work with relativity?
A 4-cylinder 2.4 L SI engine operates at 3200 rpm at WOT. The compression ratio is 8.6 and the bore to stroke ratio is 0.98. The connecting rod length to crank offset is 3.2. The maximum temperatur...
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