Physics, 27.08.2020 07:01 10040816

43 Points For Answering & +22 for Brainliest Question 1

A student conducts an experiment to test how the temperature of a ball affects its bounce height. The same ball is used for each test, and the ball is dropped from the same height each time. What is the dependent variable?
A. The type of ball
B. The temperature of the ball
C. The drop height of the ball
D. The bounce height of the ball

Question 2

A student conducts an experiment to test how the temperature affects the amount of sugar that can dissolve in water. In the experiment, she uses 100 millilitres of water in each trial and stirs for five minutes each time. What is the independent variable?
A. The amount of water
B. The temperature of the water
C. The amount of sugar
D The time stirred

Question 3

Which of the following is a way for scientists to limit the amount of errors in their experimentation?
A. Using controls
B. Only completing an experiment once
C. Using equipment to measure the experiment that has been damaged
D. There is no need to record data from an experiment

Answers: 3

Show answers

Another question on Physics

Physics, 21.06.2019 23:30

1.in one challenge on the titan games, competitors have to lift 200 pounds up a long ramp. angel is able to move the weight in 42 seconds. anthony gets it done in only 38 seconds. which statement is true? angel has more power than anthony. angel does more work than anthony. anthony does more work than angel. anthony has more power than angel. 2.a mountain climber exerts 41,000 j of work to climb a cliff. how much power does the climber need if she wants to finish in only 500 seconds? power = work / time 20,500,000 watts 82 watts 0.0122 watts 41,500 watts 3.your family is moving to a new apartment. while lifting a box 83 joules of work is done to put the box on a truck, you exert an upward force of 75 n for 3 s. how much power is required to do this? (hint: you only need two of the 3 numbers given! ) power = work / time 249 watts 25 watts 2075 watts 27.7 watts

Answers: 1

Answer

Physics, 22.06.2019 09:00

Sobre transformações cíclicas, são feitas algumas afirmações, determine quais estão corretas. i – a variação de energia interna em uma transformação cíclica é nula; ii – o trabalho, em uma transformação cíclica, é sempre positivo; iii – ao completar um ciclo, o gás tem a mesma temperatura com a qual começou a transformação; iv – uma transformação cíclica é, obrigatoriamente, composta de transformações conhecidas, como adiabática, isocórica, etc: a) i e iii b) i e ii c) ii e iii d) i e iv e) iii e iv

Answers: 1

Answer

Physics, 22.06.2019 12:20

What is the coefficient of kinetic friction μk between the block and the tabletop?

Answers: 1

Answer

Physics, 22.06.2019 18:00

Acid precipitation chemically weathering a 5.0-kg limestone rock . which coukd be the result ?

Answers: 1

Answer

You know the right answer?

43 Points For Answering & +22 for Brainliest Question 1

A student conducts an exper...