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Solve the following problems given below:
Problem I: A Type Ia supernova explodes in a galaxy at a distance of 6.10 × 107 light-years. If astronomers detect the light from the supernova today, how long ago did the supernova explode?
Problem II: Given a Hubble constant of 67.7 (km/s)/Mpc, how fast is this galaxy moving away from Earth?
Problem III: What is this galaxy's red shift?
I need expert help to solve the above question.
A 18 kg child on a playground swing moves with a speed of 3.0 m/s when the 6.0 mlong swing is at its lowest point. What is the angle that the swingmakes with the vertical when the child is at the highest point?
A plastic circular loop has a radius R, and a positive charge q is distributed uniformly around the circumference of the loop. what is the magnitude of the magnetic torque on the loop
A pitcher throws a 0.15 kilogram baseball thus that it crosses home plate horizontally with a speed of 25 m/s. Determine what is the impulse delivered to the ball
you are designing a delivery ramp for crates containing exercise equipment. the crates of weight 1480 n will move with
A string 2m long is fixed at both ends. It is found that standingwaves can be set up in this string for frequencies of 200Hz and250Hz, What is the fundamental frequency of the string
A 7.57- g bullet is moving at 689.00 m/s as it leaves the 0.63- m-long barrel of a rifle. What is the average force on the bullet
a block having mass m= 10kg rests on a horizontal surface. Us+.4 and Uk=.2. what is the friction force if an external horizontal force of 32N is exerted on the block
An elevator has mass 670 kg, not including passengers. What is the maximum number of passengers that can ride in the elevator
A rock is thrown upward from the hand at an initial speed of 4.5 m/s. How much later should a second rock be dropped from the same initial height of 0.900 m so that the two rocks hit the ground at the same time? (in s)
Solid Cylinder A long, non conducting, solidcylinder of radius 4.9 cm has a nonuniformvolume charge density ρ that is a function of the radial distance r from the axis of the cylinder, as givenby ρ = Ar2, with A = 3.0 µC/m5.
An ideal monatomic gas is contained in a vessel of constant volume 0.210 m3. The initial temperature and pressure of the gas are 300 K and 5.00 atm, respectively. Find the specific heat of the gas
A 1,000-W motor powers a hoist used to lift cars at a service station. If the original motor is replaced with one rated at 2,000 W, how long would it take to complete this task
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