Physics, 16.01.2020 02:31 jourdanpress
Describe how the speed of sound was affected by changes in amplitude and frequency in the lab experiment.
Answers: 3
Physics, 22.06.2019 13:00
Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?
Answers: 3
Physics, 22.06.2019 16:50
Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.
Answers: 2
Physics, 22.06.2019 17:30
Convection currents are caused by differences in what two things?
Answers: 1
Physics, 22.06.2019 19:30
Amass m = 74 kg slides on a frictionless track that has a drop, followed by a loop-the-loop with radius r = 18.4 m and finally a flat straight section at the same height as the center of the loop (18.4 m off the ground). since the mass would not make it around the loop if released from the height of the top of the loop (do you know why? ) it must be released above the top of the loop-the-loop height. (assume the mass never leaves the smooth track at any point on its path.) 1. what is the minimum speed the block must have at the top of the loop to make it around the loop-the-loop without leaving the track? 2. what height above the ground must the mass begin to make it around the loop-the-loop? 3. if the mass has just enough speed to make it around the loop without leaving the track, what will its speed be at the bottom of the loop? 4. if the mass has just enough speed to make it around the loop without leaving the track, what is its speed at the final flat level (18.4 m off the ground)? 5. now a spring with spring constant k = 15600 n/m is used on the final flat surface to stop the mass. how far does the spring compress?
Answers: 3
Describe how the speed of sound was affected by changes in amplitude and frequency in the lab experi...
Mathematics, 20.11.2019 03:31
Physics, 20.11.2019 03:31
Mathematics, 20.11.2019 03:31
History, 20.11.2019 03:31
Mathematics, 20.11.2019 03:31
Social Studies, 20.11.2019 03:31
History, 20.11.2019 03:31
History, 20.11.2019 03:31
Health, 20.11.2019 03:31
Health, 20.11.2019 03:31
Mathematics, 20.11.2019 03:31