Which phrases represent methods used by scientists? Check all that apply. communicate results perform hypotheses record only data that support hypothesis perform tests and experiments analyze data

- Communicate results

- Perform tests and experiments

- Analyse data

Explanation:

The other two that did not make the cut did not because:

- Perform hypothesis

Hypothesis is a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

They are scientific guesses about the end results of the experiment.

They are not 'performed', hypothesis are made/formulated/put together etc. But not performed.

- Record only data that support Hypothesis

The general purpose of any experiment or test is to test whether one's hypothesis are correct or not. So, scientists don't just record the data that support hypothesis, they record all the data to be able to give a more complete analysis and subsequently, a complete result too.

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft