What kind of telescope uses only lenses?

If two electrons in the same atom have the same four quantum numbers, then they must have the same energy. A) true B) false C) They cannot both have the same four quantum numbers.

Since scientists began collecting data on Earthquakes in the 1960s, what have they realized about tectonic plate boundaries?

What is used to find true north on a compass? a. equator c. magnetic declination b. prime meridian d. cardinal directions

A mass hangs on the end of a massless rope. The pendulum is held horizontal and released from rest. When the mass reaches the bottom of its path it is moving at a speed v = 2.3 m/s and the tension in the rope is T = 22.5 N.

Which statements describe sedimentary rock? Check all that apply.

Assume each tick mark represents 1 cm. Calculate the total displacement from 0 if an object moves 3 cm to the left, then 7 cm to the right, and then 6 cm to the left. The object moves cm to the left. What is the total distance the object travels? cm

A sound wave has a frequency of 510 Hz in air. Which of these is closest to the wavelength of this sound? (The speed of sound in air is 343 m/s.

The diagram below shows the process of distillation of saltwater into pure water. Where is the pure water in the diagram? a. A b. B c. C d. D

In what ways, would understanding the body positions, directions, and planes assist you with tasks related to the integumentary, skeletal/muscular, and digestive systems

Concave & convex lens of same mass & radii rotate about an axis passing through their centre & perpendicular to the plane which one will have greater mnment of inertia