compute the value of the magnifying power of a 150-inch fl8 telescope with an eyepiece of one-half-inch focal length

A certain sound contains the following frequencies: 400 Hz, 1600 Hz, and 2400 Hz. Select the best description of this sound View Available Hint (s) ▼ Hint 1. How to identify a fundamental within a series of frequencies a. This is a pure tone. b.

For any two materials, the force required to overcome sliding friction is always larger than the force required to overcome starting friction. a. True b. False

What is the origin of the terms "a. m." and "p. m." in our timekeeping?

An 800 kg car is moving at 32 m/s when it hits the afterburner. The after burner applies a 180,000 N force for 25 seconds. What is the rockets final speed?

An electric heater operating at 120. volts draws 8.00 amperes of current through its 15.0 ohms of resistance. The total amount of heat energy produced by the heater in 60.0 seconds is (1) 7.20 * 10^3 J (3) 8.64 * 10^4 J (2) 5.76 * 10^4 J (4) 6.

During a summer with little rainfall, your house on a hill slope experiences an interval during which your well runs dry. You have to borrow water from your neighbor who lives downslope from you. Why does your neighbor have water when you don't?

If a force does not act parallel to the resulting displacement, what is the effect on the work done by the force?

A stick is a connection of two same - diameter metal rod 5 cm, and a length of both stick is 0,6m. The thermal conductivity of the first rod 92 cal / s. m.°C, and the second stick 50 cal / s. m.°C.

you can produce a sound by plucking a string or by blowing in a pipe. how are these two ways different?

There are four springs stretched by the same mass. Spring A: 25 cm Spring B: 10 cm Spring C: 100 cm Spring D: 1 cm Which spring is the strongest? A B C D