A motor must lift a 1300-kg elevator cab. The cab's maximum occupant capacity is 400 kg, and its constant "cruising" speed is 1.6 m/s . The design criterion is that the cab must achieve this speed within 2.0 s at constant acceleration, beginning from rest. A. When the cab is carrying its maximum capacity, at what average rate must the motor deliver energy to get the cab up to cruising speed?
Express your answer with the appropriate units.
B. At what constant rate must the motor supply energy as the fully loaded cab rises after attaining cruising speed?
Express your answer to two significant figures and include the appropriate units.
Answers: 2
Physics, 21.06.2019 23:10, khush77
Which are examples of projectile motion? choose all that apply a. a soccer ball rolling across the ground in the northeast direction b. a car turning a corner, so it is heading south c. a javelin flying through the air d. a tennis ball lobbed over the net
Answers: 1
Physics, 22.06.2019 21:50, nathaniel12
Which of the following is part of the explanation or description of electromagnetic waves? (select all that apply) a. electrically charged molecules in a medium transfer their energy to nearby electrically charged molecules. b. a changing electric field causes a changing magnetic field. c. magnetic molecules in a medium transfer their energy to nearby magnetic molecules. d. a changing magnetic field causes a changing electric field.
Answers: 3
Physics, 23.06.2019 00:30, gamallopatty
What is the coldest temperature ever recorded in san antonio?
Answers: 1
A motor must lift a 1300-kg elevator cab. The cab's maximum occupant capacity is 400 kg, and its con...
Biology, 05.05.2020 09:31
Mathematics, 05.05.2020 09:31
Physics, 05.05.2020 09:31
Mathematics, 05.05.2020 09:31
English, 05.05.2020 09:31
Mathematics, 05.05.2020 09:31
Mathematics, 05.05.2020 09:31
Mathematics, 05.05.2020 09:31