i need help to see if these are correct please A record of particle decay reveal

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i need help to see if these are correct please

A record of particle decay reveals that there are fragments emitted in both the +x and +y directions. Assuming the nucleus had been at rest initially and no external forces act, the presence of a third object can be inferred: No! y to be moving between the -x and -y axes. c. to be moving between the -x and +y axes. d. to be moving between the +x and -y axes. jto be moving between the +x and +y axes. 27. (2pts)A person is standing on a perfectly smooth sheet of ice. Such ice is frequently found in physics problems. To get off the ice this person could: tea! Run, not walk, to shore. Walk, not run, to shore. a Lie down and start rolling toward shore. Inhale vertically, then exhale and blow the air horizontally. Act like a boxer delivering brisk jabs. Their arm going forward will set them into motion backward and the smooth ice will permit them to slide to shore. 28. (2pts)According to the scientific definitions of work and energy, who would do the most work in a day? an accountant. b. a physics teacher. 40 the parent taking care of a small child. d. the chief executive officer of a Fortune 500 corporation. a person standing on a copy of your textbook with six more copies balanced upon their head. 29.(4pts)Consider a 21g child who exerts a force of 10 N for 4.0 s during play. How much work is done as t.1 child exerts this force while pushing straight ahead on a toy car that moves forward a distance of 0.80 r Zero. 2.0 M m/s 8.0 N m 7.8 x 10^2 N m none of these.

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