The law of reflection states that if the angle of incidence is 81 degrees, the angle of reflection is ___ degrees.

Use examples to explain how the geosphere interacts with two other of Earth's spheres. Explain the interaction for each using complete sentences. This is for science class

What must be the contact area between a suction cup (completely exhausted) and a ceiling in order to support the weight of a 54.3 kg student? the acceleration of gravity is 9.8 m/s 2?

A ball is thrown from a rooftop with an initial downward velocity of magnitude vo = 2.9 m/s. The rooftop is a distance above the ground, h = 21 m. In this problem use a coordinate system in which upwards is positive.

Why are eggs and milk products considered to be meet alternatives

A bird travels 1.70 x 10^4 km south then turns around and travels 6.00 x 10^2 north. He then turns around again immediately and flies 1.44 x 10^4 km south. What are the bird's avg. speed and velocity if it completes the trip in 122 days?

1.) A circuit has a current of 0.5A and a resistence of 8 ohms. What is the resistence? 2.) A circuit has a voltage of 9V and a current of 3A, what is the resistence?

What is the source of energy for the process of evaporation?

How could you compare the energy carried in two different longitudinal waves

The instantaneous velocity of an object is the blank of the object with a blank

Which of the following best describes the earth's average surface temperature for the past 900,000 years? A. a steady warming trend B. fairly steady temperatures until recently C. prolonged periods of cooling and warming D.