(Answered) What are the answers to these questionsname the metal used

Academics

What are the answers to these questions.

Name the metal used to shield X-rays operators from the radiation. Give a reason why it is used.
state with a reason theeffect on the x-rays produced in an x-ray tube, when the P.D across the tube is increased.
State the characteristic of sound which is determined by overtone.
What is Archimedes principle and state its application in modern physics.

View complete question

Physics, Academics

Category:- Physics
Reference No.:- M92428216
Price:- $10

Verified Expert

Priced at $20 Now at $10, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Physics

In an attempt to skip a rock off the surface of a lake you

In an attempt to skip a rock off the surface of a lake, you throw the rock from a height h=1.67 m above the lake surface with an initial speed of v0 = 6.85 m/s at an angle of θ=12.3° below the horizontal. How long until ...

Question a slingshot will shoot a 10-g pebble 220 m

Question: A slingshot will shoot a 10-g pebble 22.0 m straight up. Part A: How much potential energy is stored in the slingshot's rubber band? Express your answer using two significant figures. Part B: With the same pote ...

Question a proton with a rest mass Question: A proton (with a rest mass

Question: A proton (with a rest mass m=1.67Ã-10âˆ'27kg) has a total energy that is 4.00 times its rest energy. Part A: What is the kinetic energy Ek of the proton? Express your answer in billions of electron volts to thr ...

Problem an athlete performing a long jump leaves the ground

Problem: An athlete performing a long jump leaves the ground at a 28.2 degree angle and lands 7.67 m away. A) What was the takeoff speed? B) If this speed were increased by just 5.0%, how much longer would the jump be?

Question an organ pipe is made to play a low note at 275 hz

Question: An organ pipe is made to play a low note at 27.5 Hz, the same as the lowest note on a piano. A) Assuming a sound speed of 343 m/s, what length open-open pipe is needed? B) What length open-closed pipe would suf ...

Question patients undergoing an mri occasionally report

Question: Patients undergoing an MRI occasionally report seeing flashes of light. Some practitioners assume that this results from electric stimulation of the eye by the emf induced by the rapidly changing fields of an M ...

A hunter wishes to cross a river that is 1 km wide and that

A hunter wishes to cross a river that is 1 km wide and that flows with a speed of 3 km/h. The hunter uses a small powerboat that moves at a maximum speed of 11 km/h with respect to the water. What is the time necessary f ...

Question part a what is the reaction energy q of this

Question: PART A: What is the reaction energy Q of this reaction? Use c2 = 931.5 MeV/u. PART B: Using fission, what mass m of uranium-235 would be necessary to supply all of the energy that the United States uses in a ye ...

Question a thin horizontal 20-cm-diameter copper plate is

Question: A thin, horizontal, 20-cm-diameter copper plate is charged to 4.0 nC . Assume that the electrons are uniformly distributed on the surface a) What is the strength of the electric field 0.1 mm above the center of ...

Question the outstretched hands and arms of a figure skater

Question: The outstretched hands and arms of a figure skater preparing for a spin can be considered a slender rod pivoting about an axis through its center . When his hands and arms are brought in and wrapped around his ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Physics Expert