Physics, 14.06.2021 06:50 kingdevin16
Điện tích Q=8. 10^-6 C đặt cố định trong không khí, điện tích q= - 10.10^-6 C di chuyển trên đường thẳng xuyên qua Q, từ M cách Q một khoảng 100cm, lại gần Q thêm 50cm. Tính công của lực điện trường trong dịch chuyển đó?
Answers: 1
Physics, 21.06.2019 21:00
In order to place a satellite into orbit, it requires enough fuel to supply the necessary mechanical energy. into what types of mechanical energy does the fuel get transformed?
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All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction
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Physics, 22.06.2019 05:20
Given the position vector of the particle r(t)=(t+1)i+(t^2−1)j+2t k, find the particle's velocity and acceleration vectors at t=1
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Physics, 22.06.2019 10:00
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
Điện tích Q=8. 10^-6 C đặt cố định trong không khí, điện tích q= - 10.10^-6 C di chuyển trên đường t...
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