subject
Physics, 04.11.2021 14:00 cynayapartlow88

Viên đạn có khӕi lượng m =10g đang bay với vận tӕc v = 100m/s thì gặp một bản gỗ. a) Viên đạn cắm sâu vào gỗ dày d = 4cm. Tính lực cản trung bình của gỗ lên đạn.
b) Tìm vận tӕc viên đạn sau khi ra khӓi bản gỗ chỉ dày d = 2cm

ansver
Answers: 1

Another question on Physics

question
Physics, 21.06.2019 17:00
Which type of current is produced by a wire breaking magnetic field lines and changing the polarity? a. alternating b. direct c. straight d. alternating and direct
Answers: 1
question
Physics, 22.06.2019 16:00
The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.
Answers: 2
question
Physics, 22.06.2019 17:30
Which of the following types of electromagnetic radiation has the longest wavelength? a. infrared light b. visible light c. ultraviolet light d. microwaves
Answers: 2
question
Physics, 22.06.2019 19:20
The dipole moment of the water molecule (h2o) is 6.17x10^-30 c.m. consider a water molecule located at the origin whose dipole moment p points in the +x-direction. a chlorine ion ( of charge-1.60x10^-19c , is located at x=3.00x10^-9m . assume that is much larger than the separation d between the charges in the dipole, so that the approximate expression for the electric field along the dipole axis can be used. a) find the magnitude of the electric force that the water molecule exerts on the chlorine ion. b) what is the direction of the electric force. -x-direction or +x-direction c) is this force attractive or repulsive?
Answers: 1
You know the right answer?
Viên đạn có khӕi lượng m =10g đang bay với vận tӕc v = 100m/s thì gặp một bản gỗ. a) Viên đạn cắm...
Questions
Questions on the website: 13722361