When using a pencil eraser, you exert a downward force of 7.5 N at a distance of 2.2 cm from the hardwood-eraser joint. The pencil has a 3.4 mm radius and is held at an angle of 16° to the horizontal. The shear modulus of wood is 1.00 × 1010 N/m2 and the strain modulus is 1.50 × 1010 N/m2. By how much does the wood flex perpendicular to its length in meters? How much is it compressed lengthwise in meters?

Acalorimeter uses the principle that thermal energy flows from hotter material to colder material until both reach the same

Which of the following statement is false ? a.batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c.do not stack batteries on top of each other)d.never put a damaged battery in a dumpster. i

Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.