Questions:
For the following 3 experimental set-ups, identify the independent variable, dependent variable, a few controlled variables, and then write a valid hypothesis for the experiment.
-Justin is growing a garden and has many different types of liquids with which he could water his plants. He has water, coffee, milk, and fertilizer dissolved in water. He wants to know which liquid will help his tomato plants grow the best.
Independent variable:
Dependent variable:
Controlled variables:
Hypothesis:
Answers: 3
Physics, 22.06.2019 12:30, mikurrjurdan
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
Physics, 22.06.2019 18:30, kayleahrayne
Ablock of mass m slides on a horizontal frictionless table with an initial speed v0 . it then compresses a spring of force constant k and is brought to rest. the acceleration of gravity is 9.8 m/s2. how much is the spring compressed x from its natural length? 1) x = v0*sqrt(k/(mg)) 2) x=v0*sqrt(m/k) 3) x=v0*((mk)/g) 4) x=v0*sqrt(k/m) 5) x=v0*(m/kg) 6) x=v0*sqrt((mg)/k) 7) x=(v0)^2/(2g) 8) x=v0*(k/(mg)) 9) x=(v0)^2/(2m) 10) x=v0*((mg)/k)
Answers: 3
Physics, 22.06.2019 21:10, bri9263
Two masses are connected by a rope that hangs over a pulley as shown below. the pulley is a uniform cylinder of radius 푅=0.381meters and mass 푀=3.1푘푔. initially 푚"is on the ground and 푚#rests 2.5 meters above the ground. if the system is released, use conservation of energy to determine the speed of 푚#just before it strikes the ground. assume the pulley bearing is frictionless.
Answers: 2
Questions:
For the following 3 experimental set-ups, identify the independent variable, dependent...
English, 30.06.2019 17:20
English, 30.06.2019 17:20
Mathematics, 30.06.2019 17:20
Mathematics, 30.06.2019 17:20