How do scientist learn about stars and galaxies even tough humans have never been there?

All of the following are incorrect statements of the wave-speed equation except for: A. B. C. D.

10 PTS! A shoe gains 8.4 x 10²⁷ electrons from a carpet Find the amount of charge required by the shoe and explain how you got your answer.

In an atom, almost all of the mass is concentrated in a tiny nucleus because

Scientists have changed the model of the atom as they have gathered new evidence. One of the atomic models is shown below. What experimental evidence led to the development of this atomic model from the one before it? A.

If you push against a stationary object for 10 seconds, you have performed an: a. eccentric exercise. b. isokinetic exercise. c. isometric exercise. d. isotonic exercise

How long can you keep string cheese in the fridge?

A particular motor can provide a maximum torque of 110 n • m. assuming that all of this torque is used to accelerate a solid, uniform, cylindrical flywheel of mass 10.0 kg and radius 3.

Round your answers to one decimal place. This parallel circuit has two resistors at 15 and 40 ohms. What is the total resistance? Ω If there is a 12 V battery in the circuit, what would the approximate current be? A

Energy transfer by convection is usually restricted to what type of substance?

Choose all that represent ways that Venus is different than Earth. a. The atmosphere of Earth is thicker than Venus b. Only Earth's atmosphere traps heat c. The atmosphere of Venus is thicker than Earth's. d.