Physics, 23.07.2021 14:00 JamminJare
Một dây nhôm dài 10 m khi ở 25 độ C. Biết khi nhiệt độ tăng thêm 1 độ C thì chiều dài 1m dây nhôm sẽ tăng thêm 0,024mm.
a) Tính ăng chiều dài của 1m dây nhom khi nhiệt độ tăn thêm 75 độ C
b) Tính chiều dài dây nhôm ở 75 độ C
Answers: 3
Physics, 21.06.2019 23:30
Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work
Answers: 1
Physics, 22.06.2019 07:30
Select all of the following that are equal to an impulse of 20 unitsa) force= 5, time= 5.5b) force= 25, time= 0.8c) force= 0.1, time= 200d) force= 10, time= 2(its b, c, and d)(also in order to find answer they have to add to get the unit)ex= 25x.8=20 or .1x200=20
Answers: 1
Physics, 22.06.2019 17:30
Alarge cruise ship of mass 7.00 ✕ 107 kg has a speed of 11.6 m/s at some instant. (a) what is the ship's kinetic energy at this time? (b) how much work is required to stop it? (give the work done on the ship. include the sign of the value in your answer.) (c) what is the magnitude of the constant force required to stop it as it undergoes a displacement of 3.00 km?
Answers: 2
Physics, 22.06.2019 17:40
A15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°c to 175°c. what is the specific heat capacity of iron?
Answers: 1
Một dây nhôm dài 10 m khi ở 25 độ C. Biết khi nhiệt độ tăng thêm 1 độ C thì chiều dài 1m dây nhôm sẽ...
Mathematics, 12.09.2021 04:50
Advanced Placement (AP), 12.09.2021 04:50
Spanish, 12.09.2021 04:50
Mathematics, 12.09.2021 04:50
Mathematics, 12.09.2021 04:50
Mathematics, 12.09.2021 04:50
English, 12.09.2021 04:50
Arts, 12.09.2021 04:50
Mathematics, 12.09.2021 04:50
History, 12.09.2021 04:50
History, 12.09.2021 04:50