Answers: 1
Physics, 21.06.2019 20:00
How much force must a locomotive exert on a 12840-kg boxcar to make it accelerate forward at 0.490 m/s2?
Answers: 1
Physics, 22.06.2019 17:30
Four objects each with charge +2.0×10−7c are located at the corners of a square whose sides are 2.0 m long. part a what quantities can be determined using this information? check all that apply. the electric force on a charged object placed at the center of the square. the mass of each object. the total electric potential energy of the system consisting of the four charged objects. part b find the electric force on a charged object placed at the center of the square.
Answers: 1
Physics, 23.06.2019 03:10
You have been hired to design a spring-launched roller coaster thatwill carry two passengers per car. the car goes up a 10-m highhill, then descends 15m to the track's lowest point. you'vedetermined that the spring can be compressed a maximum o 2.0m andthat a loaded car will have a maximum mass of 400kg. for safetyreasons, the spring constant should be 10% larger than the minimumneeded for the car to just make it over the top. a) what spring constant (k) should you specify ? b) what is the maximum speed of a 350 kg car if the spring iscompressed the full amount.
Answers: 2
Physics, 23.06.2019 19:10
An electron in a television tube is accelerated uniformly from rest to a speed of 8.4\times 10^7~\text{m/s}8.4×10 7 m/s over a distance of 2.5 cm. what is the instantaneous power delivered to the electron at the instant that its displacement is 1.0 cm?
Answers: 2
What are all the newton’s laws of motion?...
History, 07.04.2020 09:29
Mathematics, 07.04.2020 09:30
Mathematics, 07.04.2020 09:31
History, 07.04.2020 09:31
Mathematics, 07.04.2020 09:31
Social Studies, 07.04.2020 09:31
Mathematics, 07.04.2020 09:38
Mathematics, 07.04.2020 09:45
Mathematics, 07.04.2020 09:50
Mathematics, 07.04.2020 09:50
History, 07.04.2020 09:50
History, 07.04.2020 09:50