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What is the relation between density, volume and mass? Answer: Question 10. Define astronomical unit. Answer: One astronomical unit is defined as the average distance between the earth and the sun. 1AU = 1.496 x 10 11 m or 149.6 x 10 6 m. VIII. Long Answer. Question 1.
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I prepared FeCoNiAlMn and FeCoNiAlMn1-xCrx (x=0.2,0.4,0.6, 0.8,1) using Ball mill with 45hrs milling but for increasing the crystallinity of my powder alloy samples I need to heat them in vacuum ...
AQA GCSE Chemistry exam revision with questions & model answers for Measurement, Mass & Equations. Made by expert teachers.
The answer to this question is that both balls will hit the floor at the same time. Free falling does not depend on the mass of the element, and each object falls a given distance at the exact same time. Now, before you ask whether a bowling ball falls down as fast as a feather, remember that this has to do with air resistance.
Question. 7 answers. Sep 6, 2021. To calculate the molarity of acidic solutions (wt/v%), Igenerally use the formula, N.o. moles = (relative …
PHYS-91; Short Answer: A boy throws a ball vertically upward with a velocity of 6 meters per second. How long does it take the ball to return to the boy's hand? ANSWER: 1.22 SECONDS (accept: 1.2 seconds) PHYS-91; Short Answer: A toy train moves in a circle of 8 meters radius with a speed of 4 meters per second.
Expert Answer. Step 1. It is required to calculate the total number of photons having a total energy of 2 J. Energy of one photon can be calculated as, fullscreen Expand. Step 2. Here, 'h' is Planck's constant and 'ν' is the frequency of radiation. Expressing ν in terms of speed of light (c) and wavelength (λ),
Answer: Mass. Question 10. ... A boy holding a spring balance in his hand suspend a mass 2kg from it. If the balance slips from his hand and falls down, find the reading of the balance while it is in the air. ... Question 4. A ball of mass m is projected at an angle with the ground and it is found that its kinetic energy at the highest point is ...
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Top 1000 Analytical Instrumentation Questions & Answers. 1. Colorimetry and Spectrometry. Spectral Method of Analysis. UV Visible Spectrometers. Absorption Instrumentation. Single & Double Beam Instruments. IR Instrumentation. Infrared Spectrometers.
Multiple Choice Questions (MCQ) and Answers on Fermentation Reactors. Question 1: Unsteady state mass balance for dynamic model of continuous stirred tank reactor (CSTR) is. time rate of total amount in rector = rate of addition to reactor -rate of removal + rate of formation. total amount in rector = rate of addition to reactor – rate of ...
The only potential energy this ball can have is gravitational potential energy. The formula for gravitational potential energy is . We are given the height and mass of the ball. Using the given values, we can solve for the potential energy. Keep in mind that the displacement will be negative because the ball is traveling in the downward direction.
CaCO3 (s) + 2HCl (aq) arrow CaCl2 (aq) + H2O (l) + CO2 (g) View Answer. Identify the limiting reactant if 34.0 grams of Fe and 19.2 grams of O2 react to form Fe2O3. View Answer. In …
A white pool ball of mass 200g is hit with a velocity of 1.6ms-1 and collides with a stationary striped ball of the same mass. If the striped ball moves off with a velocity of 1.9ms-1 then calculate or find: a) Velocity of the white ball after the collision. b) Show by calculation which type of collision is taking place. 8.
Chemical Calculations and Moles GCSE chemistry equations, formulae and calculations are often the part of the syllabus that many students struggle with. From understanding avagadro's contact, to mole calculations, formula's for percentage yield and atom economy, at first this part of the GCSE chemistry syllabus seems very difficult.
Solved Problems. Question 1: What is the angular velocity of a particle in a circular orbit, rotating at the rate of 200 times per minute? Solution: In the given problem, the frequency of rotation is 200 times per minute ω= 2πf = 2π x 200/60 = 20.93 rad/s. Question 2: An electrically powered wheel is rotating about its axis at the rate of 900 rotations per minute.
GPA Calculator; Science Questions and Answers from Chegg. Science can be a difficult subject for many students, but luckily we're here to help. Our science question and answer board features hundreds of science experts waiting to provide answers to your questions. You can ask any science question and get expert answers in as little as two hours.
Molar Mass Calculations. We begin by finding the atomic mass of each element in the periodic table. The molar mass equals the sum of the atomic masses expressed in g/mol. (a) The atomic mass of Ag is 107.87 amu, and the molar mass of silver equals 107.87 g/mol. (b) The sum of the atomic masses for NH. 3 is 14.01 amu + 3(1.01)amu = 17.04 amu ...
Mass is the measure of the amount of matter in an object. Question 3. The distance between the two places is 43.65 km. convert it into meter and cm. Answer: (a) Convert km into metre. 1 km = 1000m. ∴ 43.65 km = 43.65 × 1000 = 43650.00 = 43650. = 43650 m. (b) Convert km into cm.
I'm interested to know when sizing a new ball mill, as to why recirculating load has no effect on the power calculation, although it will have effect on volumetric capacity naturally. For instance a mill of 300tph with a 300% recirculating load would have 1200 tph going through effectively, but if
The mass balance will contain V. Step #3: Apply the gas mass balance around the system. ( ) dt d rV = r iF i - rF w = r 60 540 - rF w (E-1) Since the temperature and pressure of the inlet, stored, and outlet gases are equal and nearly constant throughout the given time period, r = r …
12. A ball is rolled at a velocity of 12 m/sec. After 36 seconds, it comes to a stop. What is the . acceleration of the ball?-0.33 m/s². 13. How much force is needed to accelerate a truck with a mass of 2,000 kg, at a rate of 3 m/s²? 6,000 N. 14. A dragster in a race accelerated from stop to 60 m/s by the time it reached the finish line. The
Page [unnumbered] & cae - I 0-to -c6K A Q>S ~~~~~ Page [unnumbered] Page [unnumbered] Page [unnumbered] Page 1 ANS W ERS TO THE PRACTICAL QUESTIONS AND PROBLEMS CONTAINED IN THE FOURTEEN WEEKS COURSES Physiology, Philosophy, Astronomy, and Chemistry (old and New Edition). BY J. DORMAN STEELE, PH.D., F.G.S., AUTHOR OF THE …
To begin calculating the value of the torque, you have to realize that there's a slightly misleading point in the above set-up. (This is a common problem in these situations.) Note that the 15% mentioned above is the incline from the horizontal, but that's not the angle θ. The angle between r and F has to be calculated.
Have homework questions? Get answers!* Our experts are available 24/7 to help answer your homework questions in 30 subjects...and growing! ... Corporate profits are are important for calculation of GDP of the country by income method. ... - mass of ball (m) ...
To explain my answer, I have taken the scenario as follows: If the boy is holding the ball in his hand, then the force of gravity and the force by his hand counter balance each other as a result of which ball stays stationary.
Lecture 6 – Mass Balance questions and answers (1) Only one of the following is the essential approximation made when assuming steady state: a. ocean inputs from rivers equals the particle flux out of the euphotic zone b. the concentration does not change with time c. the removal flux must be proportional to how much is there.
Ball Mill Power Calculation Example #1 A wet grinding ball mill in closed circuit is to be fed 100 TPH of a material with a work index of 15 and a …
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