Q1. The diagram shows a helicopter being used to rescue a person from the sea.
(a)
(i)
The mass of the rescued person is 72 kg.
Use the equation in the box to calculate the weight of the rescued person.
gravitational field strength = 10 N/kg
Show clearly how you work out your answer. . .
Weight = .N
An electric motor is used to lift the person up to the helicopter. The motor lifts the person at a constant speed.
State the size of the force, T, in the cable.
Force T = .N

You are a researcher for a golf club manufacturer. you are given two identical looking cubes of a metal alloy. you are informed that they are made of the exact same material, but one is crystalline, whereas the other is amorphous. it is your job to determine which one is amorphous this one is more stress-resistant and is useful in reinforcing golf clubs. which of the following is the best way to determine which is which? a. determine the density of each cube. the more dense one is the amorphous solid. b. melt both cubes and look for a broader range of melting temperatures. the one that melts over a broader range of temperatures is the amorphous solid. c. determine the density of each cube. the less dense cube is the amorphous solid. d. melt both cubes and measure the range of melting temperatures. the one that melts over a narrower range of temperatures is the amorphous solid.