In the video, you saw that models must sometimes be changed. why does that happen?

What are some of the causes that disrupt the natural balance of the ecosystem? removing predators by hunting overpopulation of predators breeding hybrid plants removing prey by transplantation ridding the soil of decomposers

Only some shortwave radiation from the sun reaches earth's surface. what is the leading cause of this radiation loss?

A solid cylinder with a mass of 266 kg and radius 0.070 m is rotating with an angular speed of 83.0 rad/s about an axis passing through its center and perpendicular to its end faces.

Chance drives her scooter 7 kilometers north. She stops for lunch and the drives 5 kilometers east. What distance did she cover? What was her displacement?

Alance the equation, if necessary, for the reaction between magnesium sulfate and ammonia. MgSO4 + NH4OH → (NH4) 2SO4 + Mg (OH) 2

In automatic response to a stimulus is called a reflex

Who invented evolution?

A puppy weighing 3 kilograms races through the dog park. if she slows from a speed of 2 meters/second to 1 meter/second, what will happen to her kinetic energy? use the kinetic energy equation. a. her kinetic energy decreases to 1.5 j b.

Which type of material would be best to use for construction in an area prone to earthquakes? concrete brick wood stone

If a car is moving along the highway at a constant speed of 50 m/s, is there an unbalanced force acting on the car? How do you know? Explain using one of Newton's Laws.