Calculate how long is the telescope

Assignment Help Physics
Reference no: EM13542956

An astronomical telescope for hobbyists has an angular magnification of -150. The eyepiece has a focal length of 4.90 mm. Determine the focal length of the objective. About how long is the telescope?

Write a Review

Find the magnitude of the force on the proton

A proton with an initial velocity of (1.0x + 2.0y + 3.0z) x 10^5 m/s enters a megnetic field of 0.50z T. Find the magnitude of the force on the proton. The mass of the proton is 1.67 x 10^-27 kg.

Determine the velocity of their center of mass

find the velocity of their center of mass before the collision.

Evaluate the angular frequency of the blocks vibrations

A spring is hung from the ceiling. A 0.463 -kg block is then attached to the free end of the spring.Find the angular frequency of the block's vibrations

Determine the direction of the couples displacement

One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.08 km. What is the direction (relative to due east) of the couple's displacement

Find the work done by the cords force on the block

A cord is used to vertically lower an initially stationary block of mass M = 14 kg at a constant downward acceleration of g/7. find the work done by the cord's force on the block

Compute the frequency of the cars vibration

When four people with a combined mass of 290 kg sit down in a car, they find that the car drops 0.50 cm lower on its springs. What is the frequency of the car's vibration

How far from his starting point does he end up

The pilot of a small plane flies at 80 m/s on a day with no wind. If he first flies 60 degrees north of east for 6 minutes and then flies north for 4 minutes. How far from his starting point does he end up

How much work has been done on the girl by the force

A young girl with mass 35.5kg is sliding on a horizontal, frictionless surface with an initial momentum that is due east and that has magnitude 86.0kg?m/s, How much work has been done on the girl by the force in the time interval from t= 0s to the ..

Find the impact speed of the lunar module

On Apollo Moon missions, the lunar module would blast off from the Moon's surface and dock with the command module in lunar orbit. Find the impact speed of the lunar module

What is the final volume of the gas

0.17 mol of argon gas is admitted to an evacuated 54.83 cm3 container at 27°C. What is the final volume of the gas

What is the increase in the cubes surface area

At 12°C, a brass cube has an edge length of 25 cm. What is the increase in the cube's surface area when it is heated from 12°C to 97°C

By how much must you stretch the string

A 0.47 m long guitar string, of cross-sectional area 1.0 10-6 m2, has Young's modulus Y = 1.90 109 N/m2. By how much must you stretch the string to obtain a tension of 10 N