notsosmart4823 notsosmart4823

22-02-2018
Physics

contestada

If a car increases its speed from 20 mph to 60 mph, by what factor does the kinetic energy of the car increase

Respuesta :

Baddie23 Baddie23

22-03-2018

Mass is constant.

Therefore, KE2/KE1 = v2^2/v1^2 = 60^2/30^2 = 4.

Answer is by a factor of 4.

Answer Link

Otras preguntas

Political protests (a)are more common in the United States today than in most European democracies. (b)have recently seen success primarily with liberal or le

Which of the following is the new linecharacter?\r\n\l\b

he work function of a certain metal is 1.90 eV. What is the longest wavelength of light that can cause photoelectron emission from this metal? (1 eV = 1.60 × 10

Please help me answer number 8 thank you

Of the following elements, which could be classified as a metalloid (semimetal)? Select all that apply. (A) Mg (B) Ti (C) Ge (D) Si (E) Rn (F) Au (G) Bi (H)

Whichof following can be thrown using the throw statement?ErrorThrowableExceptionRuntimeExceptionAll of Given

In how many ways can we put five identical fruits into three bowls? Note that the bowls may be empty.

I need help please.

Radiocarbon dating can be used to determine the age of A a sample less than a million years old B a sample less than 100,000 years old C a sample less than 50,0

1. Paulino le pide el ____ al camarero. (plato / menú) 2. El plato del día es ____. (salmón / atún) 3. Pilar ordena ____ para beber. (leche / agua mineral) 4