A child's toy rake is held so that its output arm is 0.75 meters. If the mechanical advantage is 0.33, what is

the input arm length?

Which of the following is the best thermal insulator? A. Air B. Aluminum C. Iron D. Water

A square steel bar of side length w = 0.18 m has a thermal conductivity of k = 14.6 J / (s⋅m⋅°C) and is L = 1.7 m long.

Differnces of similarities between light and sound

How would I identify the Lithosphere

How can neutrophils get rid of bacteria?

A scientist pours grape juice on three identical white shirts He then uses three different cleaning products on the shirts and measures how clean they get what is the independent variable in this experiment

What part of the atom does nuclear radiation come from?

Why should scientists write reports and give oral presentations of the steps and results of their in investigations?

Which of these rocks are formed by volcanic activity? select the two correct answers. a. marble b. basalt c. limestone d. granite e. sandstone

Which source is most likely an authority on the subject? Dr. Vale, a pediatrician, discusses electrical circuitry on her home-improvement website. Jonah, an amateur cook, teaches his son how to make the best grilled cheese sandwiches.