Physics, 28.11.2020 01:40 nschavez123
The image above shows a block pulled across a table. The spring scale which measures in Newtons, reads the force resisting the
motion known as friction force. In the image above, what would be a reasonable measurement of normal force if friction force
measured 80 Newtons?
A)
40 Newtons
B)
60 Newtons
70 Newtons
D)
140 Newtons
Answers: 1
Physics, 22.06.2019 04:30, tinytoonjr8052
Light from the sun reaches the earth in 8.3 minutes. the velocity is 3.00 x 10^8 m/s. how far is earth from the sun? i know how to get to d = (3 x 10^8 m/s)(498 sec). i just don't know how to get from there to the answer being 1.5 x 10^11 m.
Answers: 3
Physics, 22.06.2019 16:50, justkevin1231
Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.
Answers: 3
The image above shows a block pulled across a table. The spring scale which measures in Newtons, rea...
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