Help. Please. Quick. Multiple choice.
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Physics, 21.06.2019 15:00
An ambulance emits a frequency of 450 hz from its siren. what frequency is heard by a man as the ambulance moves toward him? less than 450 hz more than 450 hz 450 hz 0 hz
Answers: 1
Physics, 21.06.2019 22:00
Why do electron microscopes have higher resolving power than light microscopes?
Answers: 1
Physics, 22.06.2019 12:00
If two students are running down the hall toward each other, trying to get to class, and they have the same mass and acceleration, what will happen when they collide? will their forces cancel out or will each one experience a reaction?
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Physics, 22.06.2019 17:30
Heterogeneous mixture with larger particles that never settle is
Answers: 2
Mathematics, 04.03.2020 08:55
Mathematics, 04.03.2020 08:55
Mathematics, 04.03.2020 08:56
Biology, 04.03.2020 08:56
Mathematics, 04.03.2020 08:57
Mathematics, 04.03.2020 08:57
Physics, 04.03.2020 08:58
Geography, 04.03.2020 08:58
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Arts, 04.03.2020 08:59
Arts, 04.03.2020 08:59
Mathematics, 04.03.2020 09:00