Calculate the speed of a satellite moving in a stable circular orbit about the Earth at a height of 4000 km from the surface of the earth (The mass of the earth is 5.97*1024 kg and the radius of the earth is 6.38*106 m).

The britain army was badly trained and undisciplined. A. true. B. false

Your gross margin is 60%, your operating expenses are: staffing 35%, rent 10%, miscellaneous 5%. Are you making a profit?

a. Charles designed a system to pull sleds uphill, but he needs to know the angle of the slope. He knows that the hill is 13 m high and that the distance from the base of the hill to the top is 20 m. i. Calculate the angle of the slope. b.

In which of the following situation is light most likely to be a reflection

A girl of weight 600N sits on a 3-leg chair which weighs 60N. Each chair leg presses the floor in a circle with a diameter of 5cm. Find the average pressure exerted on the floor by each chair leg.

Which of the following statements about how sound waves travel is correct? A Sound waves travel faster through solids than through liquids. B Sound waves travel faster through gases than through solids.

The idea that life could spring from nonliving matter is called? a. development. b. homostasis. c. spontaneous generation. d. evolution. 20 PTS

Physics how to calculate disintegration energy

Fast flowing water wears down the surface of a rock. This is an example of mechanical weathering chemical weathering erosion molecular weathering

What current would it need to carry in order to experience a very modest 1.0*10-3n⋅m torque?