12.0-kg block is pushed across a rough horizontal surface by a force that is angled 30.0◦below thehorizontal. The magnitude of the force is 75.0 N and the acceleration of the block as it is pushed is 3.20m/s2. What is the magnitude of the contact force exerted on the block by the surface?
Answers: 1
Physics, 22.06.2019 05:30, dontcareanyonemo
What are similarities and differences of reflection, refraction, diffraction and absorption?
Answers: 1
Physics, 22.06.2019 21:00, emilyrobles
Which of the following statements comparing electron microscopy and light microscopy is false? which of the following statements comparing electron microscopy and light microscopy is false? both the electron microscope and the light microscope use the same wavelengths for illumination. images produced by light microscopes can be in color, whereas electron microscope images are black and white unless they are artificially colored. the electron microscope has greater resolution than the light microscope. electron microscopes can allow examination of viruses and internal cell structures, whereas light microscopes are limited to objects that are 0.5 micrometers and larger. request answer
Answers: 2
Physics, 23.06.2019 06:30, davelopez979
The energy of a photon is equal to (what) times (what) of the photon.
Answers: 1
Physics, 23.06.2019 08:30, Lukejohn
Which is gerrymandering a problem for the house of representatives but not the senate? a.) members of the house are greatly influenced by their political parties. b.) senators serve longer terms than members of the house. c.) members of the house are more influenced by changes in public opinion. d.) senators are elected in statewide elections rather than in specific districts.
Answers: 1
12.0-kg block is pushed across a rough horizontal surface by a force that is angled 30.0◦below theho...
Mathematics, 12.07.2019 04:30
History, 12.07.2019 04:30
Mathematics, 12.07.2019 04:30