What is the best analogy for the doppler effect?

Which is a necessary part input for all heat engines? A) Steam to act as a working substance B) An energy source, such as fuel or electrticity C) A device to generate electrticity D) Luiqid water to act as a working substance

a body makes six complete revolution in 4.0sec if it makes in a circle of raduis 25.0cm calculate th linear velocity

Contour plowing is also known as no-till plowing. True or False

Which property is generally the least useful in identifying minerals? color hardness streak cleavage

A 10g bullet traveling at 450m/s strikes a 7.0kg, 1.1m--wide door at the edge opposite the hinge. the bullet embeds itself in the door, causing the door to swing open. what is the angular velocity of the door just after impact?

Why do cell sometimes need to use active transport?

Why is carbon and nitrogen important?

Gizmo answer sled wars

3. What is the kinetic energy of a 1300 kg car moving at 26.3 m/s?

Kendall has empty graduated cylinder with markings and an identical graduated cylinder partway filled with water. She also has a balance and a marble. Which statement best describes what Kendall can do? A.