A marathon runner averages 9.0 mi/h. How long does it take them to run a 26.76-mi marathon in hours? Hint The time it takes to complete the marathon is I h. docimal number with exactly 2 significant figures [more..]

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Q: The Earth has a net electric charge that causes a field at points near its surface equal to 150 N/C…

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Q: Suppose a linear accelerator (linac) creates a X-ray beam where every individual photon has an…

A: Energy of a single photon is E=  19MeV = 19 x 106 cVTotal number of photon is n = 3 x 1010Total time…

Q: At what speed, in wpm, will the student read if the tempo of the music they are listening to is 199…

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Q: A disk of radius R = 9.54 cm is centered at the origin and lies in the y-z plane. The disk has a…

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Q: (a) Will the electric field strength, E, between two parallel conducting plates exceed the breakdown…

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Q: Consider the figure below that graphically depicts the oscillations of the block on the spring. Note…

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Q: The drawing shows a frictionless incline and pulley. The two blocks are connected by a wire (mass…

A: Tension in the string T =253.4 N

Q: What is(are) the main advantage(s) of using the Vernier Caliper over the meter stick in length and…

A: Given thatVernier caliperTo determine thatWhat are the main advantages of using the vernier caliper…

Q: A proton moves at 5.00 x 105 m/s in the horizontal direction. It enters a uniform vertical electric…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 14. If the speed in (m/s) that a certain athlete reaches in a 200-meter race is described by the…

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Q: 3. LO 4: Consider the two cases shown below. In both cases a central charge q has two charges of…

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Q: The speed of sound is measured to be 340 m/s on a certain day. What is this in km/h? Hint The speed…

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Q: Problem: A bomb initially at rest on a smooth, horizontal surface is exploded into three pieces. Two…

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Q: Three point charges are located on a circular arc as shown in the figure below. (Take r= 4.12 cm.…

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Q: You work at a building site and the noise level has been measured at 95 dB. You need to wear…

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Q: A copper calorimeter can with mass 0.100 kg contains 0.160 kg of water and 0.0180 kg of ice in…

A: The objective of this question is to find the final temperature of the system when a piece of lead…

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Q: ▼ Calculate the vertical component of the baseball's velocity at each of the two times you found in…

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Q: 500mA of a current is flowing through a filament of a lightbulb. How many coulombs of charge move…

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Q: Find to three significant digits the charge and the mass of the following particles. Suggestion:…

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Q: Part A O F₁ = 28.5 lb, F₂ = 11.91 lb O F₁ = 20.0 lb, F₂ = 22.9 lb Ο O F₁ Ο F1 14.00 lb, F₂ = 8.35 lb…

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Q: A positively charged ball is brought close to a neutral isolated conductor. The conductor is then…

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Q: Q1: In the adjacent figure, if you know that the time of impact of the force is 20 sec and that the…

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Q: A 4.30 nC charge is located at the origin. What is the electric field at (x, y) = (6.30 cm, 7.00…

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Q: A person is standing at the edge of the water and looking out at the ocean (see figure). The height…

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Q: Problem: A bomb initially at rest on a smooth, horizontal surface is exploded into three pieces. Two…

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Q: State how many significant figures are proper in the results of the following calculations. Note…

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Q: What is the length measured by the Vernier caliper pictured below? Note: The units of the lower…

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Q: Three point charges are located on a circular arc as shown in the figure below. (Take r = 4.20 cm.…

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Q: A jogger accelerates from rest to 2.76 m/s in 3.60 s. A car accelerates from 20.3 to 34.0 m/s also…

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Q: You are given two point-like objects, known as M1 & M2. M1 has four times the mass of M2 and they…

A: Mass of M1 is four times larger than mass of M2 . M1= 4M2

Q: What is the difference in the length of the two rods when compressed? Express your answer in meters…

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Q: 3.2 A force F of 222.4 N acts on a thick disk of weight 355.8 N as shown in Fig. Q3. The disk rolls…

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Q: If you look at yourself in a shiny ball with a diameter of 16 centimeters when your face is 12…

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Q: Determine the period of the circular motion.

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Q: What was the resultant or net horizontal force acting on Travis during the four person collision?

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Q: An outside loudspeaker (considered a small source) emits sound waves with a power output of 100W.…

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Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.