Physics, 02.01.2020 23:31 mzyjohnson47
Avelocity selector can be used to measure the speed of a charged particle. a beam of particles is directed along the axis of the instrument. the plates are separated by 3 mm and the magnitude of the magnetic field is 0.3 t. what voltage between the plates will allow particles of speed 5.0 x 10^5 m/sa. 1200 v b. 3800 v c. 7500 v d. 190 v e. 380 v
Answers: 2
Physics, 22.06.2019 11:00
What is the measurement of how fast an object moves relative to a reference point?
Answers: 1
Physics, 22.06.2019 19:30
Visualize the problem and identify special cases first examine the problem by drawing a picture and visualizing the motion. apply newton's 2nd law, ∑f⃗ =ma⃗ , to each body in your mind. don't worry about which quantities are given. think about the forces on each body: how are these consistent with the direction of the acceleration for that body? can you think of any special cases that you can solve quickly now and use to test your understanding later? one special case in this problem is if m2=0, in which case block 1 would simply fall freely under the acceleration of gravity: a⃗ 1=−gj^.
Answers: 1
Physics, 22.06.2019 19:40
22. the top of a cliff is located a distance h above the ground. at a distance h/2 there is a branch that juts out from the side of the cliff, and on this branch a bird's nest is located. two children throw stones at the nest with the same initial speed, one stone straight downward from the top of the cliff and the other stone straight upward from the ground. in the absence of air resistance, which stone hits the nest in the least amount of time?
Answers: 1
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
Avelocity selector can be used to measure the speed of a charged particle. a beam of particles is di...
Mathematics, 22.05.2021 22:40
Mathematics, 22.05.2021 22:40
Chemistry, 22.05.2021 22:40
Mathematics, 22.05.2021 22:40
Mathematics, 22.05.2021 22:40
English, 22.05.2021 22:40
Mathematics, 22.05.2021 22:40
Mathematics, 22.05.2021 22:40
Mathematics, 22.05.2021 22:40
History, 22.05.2021 22:40
Mathematics, 22.05.2021 22:40