Explain how friction keeps a nail in place in a block of wood. If you try pull out the nail which way does friction act?

Four students are asked to find the mass of a mineral using a calibrated balance. The results were as follows. 16.009g 15.780g 16.110g and 15.990g the known mass of the mineral is 16.100g which student's result was most accurate?

A train starts from rest and speed up to 20%m/s in a time of 10 seconds. determine the acceleration of the train?

Blank is the perceived frequency of a sound wave

What will most people think when you say no with confidence in situations where other people are smoking? a) You are sticking with your decision. b) You are being influenced by advertisements. c) You are being pressured by peers. d) You are boring

Which type of matter allows a sound wave to move the fastest

What is the relationship between the mass of the counterweight and the amount of work done on the projectile?

The steps in the formation of sedimentary rocks are listed below in an incorrect order. 1. Rocks are weathered. 2. The sediments are compacted together. 3. They are deposited in layers. 4. Small pieces of rocks are carried by water.

Which method would you use to find the volume of an irregular shaped object?

A step up transformer has a primary coil with 100 turns and a secondary coil with 25 turns if the input voltage in the primary coil is 40 volts what is the output voltage reduced to in the secondary coil A) 20 volts B) 35 volts C) 4 volts D) 10

An instrument used to measure atmospheric pressure is called a