### Find the maximum distance stars could be from the earth

Assignment Help Physics
##### Reference no: EM1346581

Q. Two stars are 4.10 x10^11 m apart. A telescope has an objective lens with a diameter of 1.15 m . wavelength 550 nm is being observed. Find the maximum distance that these stars could be from the earth.

Q. A scientific supply catalog advertises a material having an index of refraction of 0.85. Is that a good produckt to buy? Why or why not?

### Write a Review

#### What is the frictional force, acting on the car

A car of mass 960 travels at a speed of 30 along the straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.88. Take the acceleration due to gravity to be 9.80..

#### How fast should the truck travel to stay beneath airplane

A 59.0 kg skateboarder wants to just make it to the upper edge of a "quarter pipe," a track that is one-quarter of the circle with a radius of 3.80 m.

#### Assume that plane continues to fly with the similar velocity

Assume that plane continues to fly with the similar velocity

#### What is the y-component of ball''s acceleration

A baseball is thrown straight up. The drag force is proportional to.In terms of, what is the y-component of ball's acceleration when its speed is half its terminal speed and it is moving up.

#### Find the surface tension force on water

Find the surface tension force on water inside a tube and height to which the water rises in the tube.

#### What is pressure difference at the roof

Compute the number of g's a person would experience if she could stand on the equator of Jupiter. Use following astronomical data for Jupiter: mass = 1.9 multiplied by 1024 kg, equatorial radius = 7.10 multiplied by 104 km, rotation period 9 hr 55 mi..

#### What is the frequency heard by the observer

A train at rest emits a sound at a frequency of 1045 Hz. An observer in a car travels away from the sound source at a speed of 37 m/s. What is the frequency heard by the observer .

#### What is the stopping distance while the surface is dry

A playground is on the flat roof of a city school, 5 m above the street below (see figure). The vertical wall of the building is h = 6.20m high, to form a 1.20 m high railing around the playground.

#### What is the average induced emf in the coil

A projectile is fired with an initial speed v at an angle of 30 degrees above the horizontal from a height of 40meters above the ground. The projectile strikes the ground with a speed of 1.2v. Find v.

#### What is speed of the second train, which travels faster

What is speed of the second train, which travels faster

#### How far from the objective lens is the object

A microscope with an eyepiece lens of focal length 1.90 cm and an objective lens of focal length 1.15 cm is used to examine a section of the brain of a sacrificed rat. The distance between the lenses of the instrument is 24.0 cm and final image is vi..

#### What is the cost of using electrical energy to heat

The horizontal component Fx is shown by the histogram below as function of position along x-axis. There is also a kinetic frictional force of 0.50 N between mass and surface.