Answers: 1
Physics, 22.06.2019 11:00
What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?
Answers: 1
Physics, 22.06.2019 20:20
The base of a 50-meter tower is at the origin; the base of a 50-meter tree is at (0, 50, 0). the ground is flat and the z-axis points upward. the following parametric equations describe the motion of six projectiles each launched at time t = 0 in seconds. (i) r (t) = (50 + t2)k (ii) r (t) = 2t2 j + 2t2k (iii) r (t) = 50 i + 50 j + (50 − t2)k (iv) r (t) = 2t j + (50 − t2)k (v) r (t) = (50 − 2t) i + 2t j + (50 − t)k (vi) r (t) = t i + t j + tk (a) which projectile is launched from the top of the tower and goes downward? at time t = , the projectile hits the ground at point (x, y, z) = . (b) which projectile hits the top of the tree?
Answers: 2
Physics, 23.06.2019 06:00
The frequency of a tuning fork can be found by the method shown. a long tube open at both ends is submerged in a beaker of water, and the vibrating tuning fork is placed near the top of the tube. the length l of the air column is adjusted by moving the tube vertically. the sound waves generated by the fork are reinforced when the length of the air column corresponds to one of the resonant frequencies of the tube. the smallest value for l for which a peak occurs in sound intensity is 7 cm. l what is the frequency of the tuning fork? the speed of sound in air is 345 m/s. answer in units of hz
Answers: 2
Physics, 23.06.2019 17:00
Physics pl 12)a body goes from p to q with a velocity of 10 m/s and comes back from q to p with a velocity of 20 m/s. what is the average velocity of the body during the entire trip? a)0 m/s b)13 m/s c)10 m/s d)15 m/s
Answers: 1
David Huxley holds the world record for heaviest plane pulled. The plane weighed 184 tons. He covere...
Mathematics, 21.01.2021 01:00
Mathematics, 21.01.2021 01:00
Mathematics, 21.01.2021 01:00
English, 21.01.2021 01:00
Mathematics, 21.01.2021 01:00
Arts, 21.01.2021 01:00
Mathematics, 21.01.2021 01:00
History, 21.01.2021 01:00
Mathematics, 21.01.2021 01:00