evelyn49477 evelyn49477

03-02-2021
Physics

contestada

A 3kg book falls from a 2m tall bookshelf what is the speed

PICTURE included

A 3kg book falls from a 2m tall bookshelf what is the speed PICTURE included class=

Respuesta :

03-02-2021

Answer:

39.2m/s

Explanation:

The potential energy the book has right before it falls is equal to the kinetic energy in falling.

PE = KE

mgh = (1/2)mv

2gh=v

v=(2)(9.81)(2)

v=39.24m/s

Answer Link

Otras preguntas

WHO WAS TANTIA TOPE????

What do cross cutting capabilities include?

Q. # 14 lease help to solve

Which kinds of objects emit visible light in the electromagnetic spectrum?1)all objects2)radioactive objects3)relatively cold objects4)relatively hot objects

Identify some activities that a 24 year old female can do to improve cardiorespiratory system function. She is aspring to play soccer for her college next seas

[CORRECT ANSWER RECEIVES BRAINLIEST ONLY The work of a student to solve a set of equations is shown: Equation A: y = 16 – 2z Equation B: 7y = 2 – 4z Step 1:

Summarize how chromosomal rearrangements may cause some forms of cancer.

Natalie observes these characteristics in the model of an atom. (i) includes positive charge (ii) contains electrons (iii) explains the photoelectric effect

What type of video games do you prefer buying?

The number of possible genetically different gametes for an organism equals 2N, where N is the number of pairs of chromosomes. If an organism has 6 pairs of chr