a) An Sb galaxy has an absolute magnitude in the B band of -20.21. i) Estimate the isophotal radius at 25 B - mag arcsec...
a) An Sb galaxy has an absolute magnitude in the B band of -20.21.
i) Estimate the isophotal radius at 25 B - mag arcsec−2 .
ii) Estimate the rotational velocity of the galaxy.
iii) Estimate the angular rotation speed of a star at the isphotal
radius in arsec yr−1 .
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a) An Sb galaxy has an absolute magnitude in the B band of -20.21. i) Estimate the isophotal radius at 25 B - mag arcsec...
a) An Sb galaxy has an absolute magnitude in the B band of -20.21. i) Estimate the isophotal radius at 25 B - mag arcsec...
a) An Sb galaxy has an absolute magnitude in the B band of -20.21. i) Estimate the isophotal radius at 25 B - mag arcsec−2 . ii) Estimate the rotational velocity of the galaxy. iii) Estimate the angular rotation speed of a star at the isphotal radius in arsec yr−1 PLEASE HELP!
an 8kg flywheel of radius r is initially at rest. assume the radius of the gyration kG= 0.12m and the radius of the flywheel r = 0.125m. an object B also of mass 8 kg is attached to a cord that is wra...
an 8kg flywheel of radius r is
initially at rest. assume the radius of the gyration kG= 0.12m and
the radius of the flywheel r = 0.125m. an object B also of mass 8
kg is attached to a cord that is wrapped around a periphery of the
flywheel. the fly wheel starts to rotate clockwise with angular
velocity. the rotation is resisted by a constant frictional torque
mf in the bearing 1Nm. use the work energy principle to determine...
18) The clock on a clock tower has a radius of 1.0 m.
18) The clock on a clock tower has a radius of 1.0 m. 1. What's the angle of rotation between the hour hand of the clock when it moves from 12:00 pm to 3:00 pm? 2. What's the arc length along the outermost edge of the clock between the hour hand at these two times?25) A disc spins at the rate of 200 revolutions per minute. What is the linear speed of a point 2 cm away from the center?27) A tire...
A child pushes her friend (m = 25 kg) located at a radius r = 1.5...
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A carousel has a radius of R=3.00m and a moment of inertia of I= 6250 kgâ‹…m2 for...
A carousel has a radius of R=3.00m and a moment of inertia of I= 6250 kgâ‹…m2 for rotation about axis perpendicular to the its center. The carousel is rotating unpowered and without friction with an angular velocity of 1.25 rad/s. An 85.0 kg man runs with a velocity of v=8.00m/s , on a line tangent to the rim of the carousel, overtaking it. The man runs onto the carousel and grabs hold of a pole on the rim. (Figure 1) a...
A ring of radius a has a total charge +Q distributed uniformly around its circumference. As shown in Figure I. the point P is on the axis of the ring at a distance b from the center of the ring.
A ring of radius a has a total charge +Q distributed uniformly around its circumference. As shown in Figure I. the point P is on the axis of the ring at a distance b from the center of the ring. a. On Figure I above, show the direction of the electric field at point P. b. Determine the magnitude of the electric field intensity at point P. As shown in Figure II. the ring is now routed about its axis...
a. The moment of inertia of the reaction wheels has a value RI and the moment...
a. The moment of inertia of the reaction wheels has a value RI and the moment of inertia of the telescope about its symmetry axis, and about an axis perpendicular to its symmetry axis is represented by Iz and Ix , respectively. Find an expression for the final speed of the appropriate reaction wheel wRf to cause the telescope to change its direction at a rate of wt for a nominal (i.e. idling) rotational speed of the flywheels of wRi...
Open with Physics 1214, General Physics -I, Fall 2019 Recitation Problems 9- Chapters 9, 10, 12,...
Open with Physics 1214, General Physics -I, Fall 2019 Recitation Problems 9- Chapters 9, 10, 12, 11 PROBLEMS: SHOW ALL WORK, not just the answers 1. From a stationary position at 0-0, a bicycle wheel accelerates with a constant angular acceleration of a = 10.0 s a) What is its angular velocity o after 5 s? b) What is its angular position 0 at that time? 2. An iceskater is turning at a PERIOD of (1/3) second with his arms...
how do you calculate these? agement Help Variable R Turntable radius Chapter 10 Begin Date: 7/14/2020...
how do you calculate these?
agement Help Variable R Turntable radius Chapter 10 Begin Date: 7/14/2020 12:00:00 AM -- Due Date: 7/31/2020 11:59:00 PM End Date: 8/16/2020 11:00:00 AM (9%) Problem 7: A turntable of radius 25 cm and rotational inertia 0.0154kg-mis Description spinning freely at 22.0 rpm about its central axis, with a 19.5g mouse on its outer edge. The mouse walks from the edge to the center. Assume the turntable-mouse Turntable inertia system is isolated, and put your...
im having problems with my physics homework. Im not that good at physics and would like...
im
having problems with my physics homework. Im not that good at
physics and would like to know what the awnsers are and a step by
step apprach for i can completley understand and comprehend it.
Thank you!
1) Define Pressure. 1) Use the expression for hydrostatic pressure to estimate the height of the atmosphere above sea level. Presume that the density of air and "e" remain constant. 11) Now presume that "g" is still a constant but the density...
an 8kg flywheel of radius r is
initially at rest. assume the radius of the gyration kG= 0.12m and
the radius of the flywheel r = 0.125m. an object B also of mass 8
kg is attached to a cord that is wrapped around a periphery of the
flywheel. the fly wheel starts to rotate clockwise with angular
velocity. the rotation is resisted by a constant frictional torque
mf in the bearing 1Nm. use the work energy principle to determine...
Open with Physics 1214, General Physics -I, Fall 2019 Recitation Problems 9- Chapters 9, 10, 12, 11 PROBLEMS: SHOW ALL WORK, not just the answers 1. From a stationary position at 0-0, a bicycle wheel accelerates with a constant angular acceleration of a = 10.0 s a) What is its angular velocity o after 5 s? b) What is its angular position 0 at that time? 2. An iceskater is turning at a PERIOD of (1/3) second with his arms...
how do you calculate these?
agement Help Variable R Turntable radius Chapter 10 Begin Date: 7/14/2020 12:00:00 AM -- Due Date: 7/31/2020 11:59:00 PM End Date: 8/16/2020 11:00:00 AM (9%) Problem 7: A turntable of radius 25 cm and rotational inertia 0.0154kg-mis Description spinning freely at 22.0 rpm about its central axis, with a 19.5g mouse on its outer edge. The mouse walks from the edge to the center. Assume the turntable-mouse Turntable inertia system is isolated, and put your...
im
having problems with my physics homework. Im not that good at
physics and would like to know what the awnsers are and a step by
step apprach for i can completley understand and comprehend it.
Thank you!
1) Define Pressure. 1) Use the expression for hydrostatic pressure to estimate the height of the atmosphere above sea level. Presume that the density of air and "e" remain constant. 11) Now presume that "g" is still a constant but the density...
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