Physics, 12.03.2021 14:00 dsaefong00
The steel wire working a signal is 750 m long and 0.5 cm diameter. Assuming a pull on the
wire of 1.5 kN, find the movement which must be given to the signal-box end of the wire if
the movement at the signal end is to be 17.5 cm. Take Young’s modulus as 200 GN/m2
Answers: 3
Physics, 22.06.2019 00:00, cchsemily7210
A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
Answers: 1
Physics, 22.06.2019 12:30, mikurrjurdan
Matter is needed to transfer thermal energy bya. conductionb. convectionc. radiation d. both a & b.
Answers: 1
The steel wire working a signal is 750 m long and 0.5 cm diameter. Assuming a pull on the
wire of 1...
Mathematics, 25.03.2020 20:23