43 Points For Answering & +22 for Brainliest
Question 1
A student conducts an exper...
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
Physics, 21.06.2019 23:30, coryowens44
An object starts from rest at point f and speeds up continuously as it moves around an oval. a. choose a point about 1/8 th of the way around the oval from point f, and label it point g. draw a vector to represent the velocity of the object at point g. b. determine the change in velocity vector between points f and g.
Answers: 1
Physics, 22.06.2019 06:10, crystalryan3797
Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.
Answers: 3
Physics, 22.06.2019 12:00, stephanieboyd
Explain why electric current cannot exist if a current doesn't have a voltage source.
Answers: 2
Physics, 22.06.2019 12:40, live4dramaoy0yf9
Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)
Answers: 2
Mathematics, 14.01.2020 07:31
Mathematics, 14.01.2020 07:31
Mathematics, 14.01.2020 07:31
Mathematics, 14.01.2020 07:31
Mathematics, 14.01.2020 07:31
Mathematics, 14.01.2020 07:31
Mathematics, 14.01.2020 07:31
Biology, 14.01.2020 07:31
Physics, 14.01.2020 07:31