Physics, 05.03.2022 23:40 lexipeacemaker
a bird has a mass of .2kg and is flying 10 m above the ground with a speed of 7 m/s. what is the total mechanical energy?
Answers: 1
Physics, 22.06.2019 02:00
The motor m applies a time-varying force of f (200 t) n, where t is in seconds. box b with mass 200 kg starts from rest, and the coefficients of kinetic and static friction are 0.2 and us 0.3 the acceleration due to gravity is g 9.8 m/s2 b 300 a) find the time ' when the box starts to move. b) calculate the speed of the crate at 3 s c) calculate the power delivered by the motor at t 3 s
Answers: 3
Physics, 22.06.2019 02:20
22. the effect of threshold braking is to a cause skids. b. lock wheels. c. prevent locking of wheels. d. increase stopping distance.
Answers: 2
Physics, 22.06.2019 18:30
How many meters will a car travel if its speed is 45 m/s in an interval of 11 seconds? question 2 options: a) 450 meters b) 495 meters c) 4.09 meters d) 498 meters
Answers: 2
Physics, 22.06.2019 19:50
The heater element of a 120 v toaster is a 5.4 m length of nichrome wire, whose diameter is 0.48 mm. the resistivity of nichrome at the operating temperature of the toaster is 1.3 × 10-6 ω·m. the toaster is operated at a voltage of 120 v. (a) what is the power drawn by the toaster? (b) if the cost of electricity is 12 ¢ per kilowatt-hour, and it takes 2 minutes to toast bread, how much does it cost for toasted bread? (c) when the heater element is at room temperature, is the resistivity in the nichrome wire greater than, less than, or equal to it’s resistivity when at operating temperature? explain.
Answers: 3
a bird has a mass of .2kg and is flying 10 m above the ground with a speed of 7 m/s. what is the tot...
English, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
Social Studies, 13.11.2020 01:00
Physics, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
Chemistry, 13.11.2020 01:00
Chemistry, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
Computers and Technology, 13.11.2020 01:00
Mathematics, 13.11.2020 01:00
German, 13.11.2020 01:00
Computers and Technology, 13.11.2020 01:00
Arts, 13.11.2020 01:00