michaelbernbenn952 michaelbernbenn952

06-02-2018
Social Studies

contestada

2. Energy is constantly converted into different forms. In which of the following scenarios is chemical energy converted into mechanical energy?

A) Light from the Sun strikes a solar cell, which generates an electric current.

B) A match is struck and ignites.

C) Electric current flows through a light bulb filament.

D) A girl uses her muscles to lift a box off of the floor.

Respuesta :

indiaaaaa indiaaaaa

07-02-2018

The answer is D. Chemical energy is the that is stored and energy is stored in the girls muscles. Mechanical energy is energy in motion and the box is moving off the floor

Answer Link

lilymorrison05 lilymorrison05

20-12-2018

The answer is D. A girl uses her muscles to lift a box off of the floor

Answer Link

Otras preguntas

Now it is your turn: What is the minimum sample size we would need to be 95% certain that at least five people would test positives for disease B? First try n=6

predict the electron configuration of each the following atoms

The zero vector in R4 is a. [0,0] b. [0,0,0,0] c. [0,0,0] d. None of these If u=[5,2,3] and v=[6,−7,3], then 4u+5v is a. [11,−5,6] b. [50,−27,27] C. [50,−5,6] d

You are hired as a UX Designer to conduct a Usability Review of an existing web site, desktop application, or mobile app and present your findings and recommend

Evaluate the improper integral or state that it is divergent. ∫ −4 −4 2 1 dx 16 3 304 3 − 32 3 Divergent Question 2 (Mandatory) (1 point) Evaluate the

(1 point) For the functions f(t)=u(t) and g(t)=u(t) (where u(t) is the Heaviside function), defined on 0≤t<[infinity], compute f∗g in two different ways: By

Use the product-to-sum identities to rewrite the expression as the sum or difference of two functions. cos30cos5θ 2 1 [cos8θ−cos2θ] cos 2 110 2 2 1 [cos8θ−s

Let f(x,y)=xy (a) Describe explicitly the x and y slices of f. (That is, if x=k, what is Γ(f(k,y)) and similarly for y=k ) (b) Describe the level set of f for z

You must clearly name and discuss two (2) factors of Demand and two (2) factors of Supply that have influenced the Company's operations over the past three (3)

In this question you may find usefull one of the following Maclaurin expansions e x =∑ k=0 [infinity] k! x k ,sinx=∑ k=0 [infinity] (−1) k (2k+1)! x 2k+1