Magnifying power of an astronomical telescope
What is the magnifying power of an astronomical telescope having 0.1 diopter object and 20 diopter of eye piece. also find the length of the telescope.
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A 2.1 x 10^3 kg car starts from rest at the top of a driveway that's sloped at an angle of 20.0 degrees with the horizontal. An avg. friction force of 4.0 x 10^3 impedes the cars motion so that the cars speed at the bottom of the driveway is 3.8m/
What is the magnitude of the net torque exerted on the branch by the children? Assume that the axis is located where the branch joins the tree trunk and is perpendicular to the plane formed by the branch and the trunk.
A 500 turn solenoid, 25 cm long, has a diameter of 2.8 cm. A 10 turn coil is wound tightly around the center of the solenoid. If the current in the solenoid increases uniformly from 0 to 5.0 A in 0.57 s, what will be the induced emf magnitude in t
Retrorockets are fired along the line of motion to reduce the probe's speed. The retrorockets generate a force of 3.0 105 N over a distance of 2600 km. What is the final speed of the probe?
An electron moving along the x axis has a position given by x = 11te-1t m, where t is in seconds. How far is the electron from the origin when it momentarily stops?
A positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread as shown below. After being charged once, the plates are disconnected from the battery. Describe the behavior of the ball.
A uniform disk with a mass of 150 kg and radius of 1.3 m rotates with an angular speed of 1000 rev/min. A constant tangential force is applied at a radial distance of 0.7 m. How much work must this force do to stop the wheel?
Major cities grew rapidly in the 19th century. Identify and discuss the problems these cities dealt with as a result of rapid growth.
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Maintaining the proper salt and water balance of cells and body fluids is one of the greatest challenges facing estuarine organisms.
Problem: Choose the best answer. Why are natural brush and forest fires important to some ecosystems?
How are lichens or moss similar to the pioneer species, like grass, that colonize an abandoned field? How are they different?
What political, economic, and cultural factors are prohibiting world leaders from agreeing on solutions to global environmental challenges?
Make sure to use research when making your arguments and counterarguments. Be reminded that this is an argumentative essay
Address Piaget's Four Stages of Cognitive Development. Include the following for each stage: Title of each stage
1. What is the first-line treatment for BPD? 2. What can be done from a psychopharmacological perspective?