Answers: 2
Physics, 22.06.2019 16:40
Aparticle's position is given by x = 3.00 - 9.00t + 3t2, in which x is in meters and t is in seconds. (a) what is its velocity at t = 1 s? (b) is it moving in the positive or negative direction of x just then? (c) what is its speed just then? (d) is the speed increasing or decreasing just then? (try answering the next two questions without further calculation.) (e) is there ever an instant when the velocity is zero? if so, give the time t; if not, answer "0". (f) is there a time after t = 3 s when the particle is moving in the negative direction of x? if so, give the time t; if not, answer "0".
Answers: 3
Physics, 22.06.2019 17:40
Along wire carrying a 4.2 a current perpendicular to the xy-plane intersects the x-axis at x=−1.7cm. a second, parallel wire carrying a 3.0 a current intersects the x-axis at x=+1.7cm. part a at what point on the x-axis is the magnetic field zero if the two currents are in the same direction? express your answer to two significant figures and include the appropriate units.
Answers: 2
Physics, 22.06.2019 19:10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
How does a catalyst work to make a reaction go more quickly?
O A. It decreases the number of collis...
Mathematics, 12.02.2020 07:53
Mathematics, 12.02.2020 07:53
Mathematics, 12.02.2020 07:53
Mathematics, 12.02.2020 07:54
Mathematics, 12.02.2020 07:54
Mathematics, 12.02.2020 07:54
Mathematics, 12.02.2020 07:54
Mathematics, 12.02.2020 07:54
Biology, 12.02.2020 07:54
Social Studies, 12.02.2020 07:54
English, 12.02.2020 07:55
Mathematics, 12.02.2020 07:55
Mathematics, 12.02.2020 07:55
Mathematics, 12.02.2020 07:55
Mathematics, 12.02.2020 07:56