Physics, 18.03.2021 17:30 anamariarozo
In a local bar, a customer slides an empty beer mug on the
counter for a refill. The bartender does not see the mug, which
slides off the counter and strikes the floor 1.40m from the base
of the counter. If the height of the counter is 0.860m, (a) with
what speed did the mug leave the counter and (b) what was the
direction of the mug’s velocity just before it hit the floor?
Answers: 1
Physics, 21.06.2019 16:30
Aball bearing at 220.0 °c is dropped into a cup containing 250.0 g of water at 20.0 °c. the water and ball bearing come to a temperature of 30.0 °c. what is the heat capacity of the ball bearing in j/°c? (hint: how are the algebraic signs of q related for the ball bearing and the water? )
Answers: 1
Physics, 22.06.2019 10:00
**urgent** roberto plans to use two transformers to reduce a voltage of 120 v to 4 v. he uses a transformer that has 300 coils in the primary winding and 50 coils in the secondary winding. he has four other transformers, as listed in the table. which transformer should roberto use to have an ending voltage of 4 v? a- w b-xc- yd- z
Answers: 1
Physics, 22.06.2019 12:30
Consider a hydrogen atom in the ground state. what is the energy of its electron? =e= jj now consider an excited‑state hydrogen atom. what is the energy of the electron in the =5n=5 level? =e5= j
Answers: 3
In a local bar, a customer slides an empty beer mug on the
counter for a refill. The bartender does...
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