LAVAR UN CARRO: SI NO
TIPO DE
TRABAJO
Remolcar un vehículo
con otro o con una grúa que tire de él y lo ponga en
movimiento: SI NO
TIPO DE
TRABAJO
PARARSE FRENTE AL ESPEJO:
SI
NO
TIPO DE
TRABAJO
COCINAR: SI NO
TIPO DE
TRABAJO
PATEAR UN
PENAL:SI NO
TIPO DE
TRABAJO
LLEVAR UNA
MOCHILA AL HOMBRO Y CAMINAR:
SI NO
TIPO DE
TRABAJO
PASEAR AL PERRO (EL PERRO NO QUIERE
PASEAR): SI NO
TIPO DE
TRABAJO
MANTENER UNA CAJA EN LAS MANOS:
SI NO
TIPO DE
TRABAJO
TROTAR EN EL PARQUE:
SI NO
TIPO DE
TRABAJO
JUGAR A LA RAYUELA:
SI NO
TIPO DE
TRABAJO
SALIR DE PASEO:
SI NO
TIPO DE
TRABAJO

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600

Consider a u-tube whose arms are open to the atmosphere. now equal volumes of water and light oil (ρ = 49.3 lbm/ft3) are poured from different arms. a person blows from the oil side of the u-tube until the contact surface of the two fluids moves to the bottom of the u-tube, and therefore, the liquid levels in the two arms are the same. if the fluid height in each arm is 30 in, determine the gage pressure exerted by the person on the oil by blowing.

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.