What is meant by activation energy when it comes to chemical reactions?

What features form where two continental plate come together

As one move from left to right across in modern periodic table elements become A : smaller B : lighter C : less metallic D : more unlike each other

In a double-slit experiment, electrons are fired at an opaque barrier having two small slits, and a screen beyond the barrier records where the electrons hit. After many electrons are fired, what is observed on the screen? A.

Describe the physical science as the study of energy and matter

In a region where there is a uniform electric field that is upward and has magnitude 3.80x104 N/C a small object is projected upward with an initial speed of 2.32 m/s The object travels upward a distance of 5.98 cm in 0 200 s.

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.