At what speed does a 1400 compact car have the same kinetic energy as a 20000 truck going 25?

Express your answer using two significant figures.

What is the relationship between mass and the lifespan of a star

A car weighs 1323 N. what is its mass?

Calculate the Engineering Ultimate Tensile Strength and the maximum load in tension testing of an annealed copper specimen with an original diameter of 5 mm. Assume that the strain hardening coefficient for annealed copper is 0.

What energy conversion happens when green plants use energy from the sun to make sugar?

If organisms are unable to generate enough genetic diversity to survive in a changing environment, they

Two slits in an opaque barrier each have a width of 0.020 mm and are separated by 0.050 mm. When coherent monochromatic light passes through the slits the number of interference maxima within the central diffraction maximum: Group of answer choices

How much work is done if a 50. ON force is applied on an object in the direction of motion while the object slides 3.00 m across the floor?

A transverse wave on a rope is given by y (x, t) = (0.750cm) cos (π[ (0.400cm-1) x + (250s-1) t]). find the period

Which best describes why a physical change differs from a chemical change? A. A physical change predicts the behavior of a substance when in a reaction, whereas a chemical change is used to identify characteristics of a substance. B.

You are watching children play a game of tug-o-war with an old plastic clothesline. The two teams are pulling at opposite ends of the cord and each team is trying to drag the other team into a mud puddle that lies between them.