Physics, 23.10.2020 07:01 jdsfdujfi1598
Why did Thomson’s results from experimenting with cathode rays cause a big change in scientific thought about atoms?
1)His results gave people a picture of what atoms look like for the first time.
2)His results gave the first clues that atoms could be created and destroyed.
3)His results gave the first experimental evidence that matter is made up of atoms.
4)His results gave the first evidence that atoms were made up of smaller particles.
Answers: 1
Physics, 21.06.2019 16:20
A1,200 kg car is accelerated at 3.7 m/s2. what force was needed to produce this acceleration? a. 4,440 n b. 324.3 n c. 4,388 n d. 304.3 n
Answers: 2
Physics, 22.06.2019 02:50
20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.
Answers: 3
Physics, 22.06.2019 06:00
Complete the statement about memory improvement. ( )involves organizing and breaking down information into easier groups to expand capacity. rehearsal is the verbal repetition of information. these techniques are especially important for the improvement of ( ) memory.
Answers: 1
Physics, 22.06.2019 10:30
An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.
Answers: 2
Why did Thomson’s results from experimenting with cathode rays cause a big change in scientific thou...
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