Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 1, Problem 15P
To determine
Find the rotational speed of the solid disk in rpm.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Two particles each have a mass of 6.1 x 10-2 kg. One has a charge of +5.0 x 106 C, and the other has a charge of -5.0 x 10-6 C. They are
initially held at rest at a distance of 1.1 m apart. Both are then released and accelerate toward each other. How fast is each particle
moving when the separation between them is one-third its initial value?
Number i
Units
B
91
91
92
92
A
A column with an internal diameter of 50 cm and a height of 2 m is packed with spherical particles 3 mm in diameter so as to form a packed bed with ω= 0.45. Estimate the power required to pump a Newtonian liquid (μ = 70 × 10−3 kg/m·s; ρ = 1200 kg/m3) through the packed bed at a mass flow rate of 1.2 kg/s.
The 5,000kg final stage of a spaceship ejects the 10,000kg second stage. Before ejection, the two stages together travel with a velocity of 200m/s. If after ejection the second stage travels at 50m/s opposite the direction of its initial motion, what is the velocity of the final stage?
Chapter 1 Solutions
Sustainable Energy
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- A small particle has charge -4.30 μC and mass 2.00×10-4 kg. It moves from point A, where the electric potential is VA = 260 V, to point B, where the electric potential VB = 960 V is greater than the potential at point A. The electric force is the only force acting on the particle. The particle has a speed of 4.60 m/s at point A. For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Electric force and electric potential. - Part A What is its speed at point B? Express your answer in meters per second. ΜΕ ΑΣΦ v = Submit Request Answer Part B Is it moving faster or slower at B than at A? Faster Slower Submit Request Answer ? m/sarrow_forward5. What would be the mass of block (in kg) which is moving at 44 ft/s if its kinetic energy is 120250 ft- Ib.arrow_forwardA jet is moving 30.5 m/s velocity. At the certain moment, it is deflected upward by a curved wing with a 60° angle. The diameter is 5.08 cm and the density is 1000 kg/m3. Calculate the force on the wing.arrow_forward
- A disc has a Mass of 20 kg and a radius of 0.3 m. It undergoes a moment of M = 20 + 4 Nm. Determine the angular velocity after two revolutions. 300 mm 0 What is the angular momentum of the disc above? Marrow_forwardA plastic ball of mass 2.1 g has been charged to 3 nC. What strength of the electric field will produce an acceleration of 0.4 m/s² on the ball, if electrostatic force is the only force acting on the ball? O 11.1*10^5N/C O 5.1*10^5 N/C O 3.3*10^5 N/C O 2.8*10^5 N/Carrow_forwardA 400-kg satellite was placed in a circular orbit 1500 km above the surface of the earth. At this elevation the acceleration of gravity is 6.43 m/s ^ 2 . Determine the kinetic energy of the satellite in kJ, knowing that its orbital speed is 25.6*10^ 3 km/h . Final answer in: 4 decimal place Unit: KJ(kilojoules) Thanks!arrow_forward
- The combined mass of a car and its passengers travelling at 72 km/hr is 1500 kg. Find the kinetic energy in Joules of this combined mass. O 600000 O 1500 O 300000 O 150000arrow_forwardmust be expressed to 60x10-3 N or 60mN 1. In a given fluid, positive ions, each with three excess protons, move towards right at a steady rate of 4.5 x 109 ions per minute and negative ions, each with two excess electron, move towards left at a steady rate of 2.5 x 1020 ions per minute. Determine the current directed to the right. An electric circuit has a batton with an ENME of 1 60 Y Itoarrow_forwardWhat is the momentum of a body of 2 kg at its highest point, when thrown with a velocity of 15 m/s at an angle of of 70° with the horizontal? a. 9.23 kg ms-1 b. 10.26 kg ms-1 c. 28.19 kg ms-1 d. None of the abovearrow_forward
- Problem 1: The figure shows a gas contained in a vertical piston- cylinder assembly. A vertical shaft whose cross-sectional area is 0.8 cm² is attached to the top of the piston. The total mass of the piston and shaft is 25 kg. While the gas is slowly heated, the internal energy of the gas increases by 0.1 kJ, the potential energy of the piston-shaft combination increases by 0.2 kJ, and a force of 1334 N is exerted on the shaft as shown in the figure. The piston and cylinder are poor conductors, and friction between them is negligible. The local atmospheric pressure is 1 bar and g=9.81 m/s². Determine, (a) the work done by the shaft, (b) the work done in displacing the atmosphere, and (c) the heat transfer to the gas, all in kJ. F = 1334 N -A=0.8 cm² Patm = 1 bar Gas -D = 10 cmarrow_forwardWhat is the rotational speed in rpm of a 0.8 m diameter cylindrical container, held with axis vertical, if the fluid contained in it rises to 0.6 m height at the sides and leaves a circular space 0.3 m diameter on the bottom uncovered?arrow_forwardTwo ice skaters hold hands and rotate, making one revolution in 2.8 s. Their masses are 56 kg and 69 kg, and they are separated by 1.7 m. Find the angular momentum of the system about their center of mass. (I found that to be 200.5 J*s) Part 2 is: If the skaters pull towards each other and decrease their separation to 0.90 m, what is the new period of rotation about the center of mass?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you