Need hel plz
60 POINTS
4. A waiter carries a tray of food across a room. How much work was d...
Physics, 05.03.2021 08:40 jadaspells27
Need hel plz
60 POINTS
4. A waiter carries a tray of food across a room. How much work was done on the tray?How do you know?
5. What is the equation for total mechanical energy?
6. Which of the following objects has more kinetic energy?
Explain your answer!!!
A 15 kg ball rolling north at 15 m/s
OR
A 15 kg ball rolling backwards at 7 m/s
Answers: 2
Physics, 22.06.2019 06:00
In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.
Answers: 1
Physics, 22.06.2019 07:30
Quantum mechanics applies to subatomic, atomic, nanometer-size, and micrometer-size systems. nanometer, micrometer, and kilometer-size systems. atomic, nanometer-size, and micrometer-size systems. subatomic, atomic, and nanometer-size systems.
Answers: 2
Physics, 22.06.2019 16:50
Two loudspeakers, 5.5 m apart and facing each other, play identical sounds of the same frequency. you stand halfway between them, where there is a maximum of sound intensity. moving from this point toward one of the speakers, you encounter a minimum of sound intensity when you have moved 0.33 m . assume the speed of sound is 340 m/s.part a) what is the frequency of the sound? part b) if the frequency is then increased while you remain 0.21 m from the center, what is the first frequency for which that location will be a maximum of sound intensity? express your answer to two significant figures and include the appropriate units.
Answers: 2
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