Physics, 01.11.2020 14:10 Theresab2021
An electric drill transfers 200 J of energy into a useful kinetic energy store. It also transfers 44 J of energy by sound and 48 J of energy by heat. What is the efficiency of this drill? Round your answer to the nearest whole number.
Answers: 3
Physics, 22.06.2019 12:50
Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass
Answers: 3
Physics, 22.06.2019 23:30
The photo above shows oil and vinegar in a pitcher. the top make a claim about about the density of the vinegar compared to the density of the oil summarize the evidence to support the claim and explain your reasoning
Answers: 3
Physics, 23.06.2019 02:00
Dc versus ac problem. suppose your dc power supply is set to 15 v and the vertical setting on the oscilloscope is at 5 v/div. how many divisions will the trace deflect if you connect the output of the power supply to the scope with the a input switch set on dc? how many divisions if the switch is on ac?
Answers: 3
Physics, 23.06.2019 09:00
In the cores of extremely hot red giants, nuclear reactions convert helium to
Answers: 1
An electric drill transfers 200 J of energy into a useful kinetic energy store. It also transfers 44...
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