Physics, 16.11.2020 20:10 zlittleton2008
The coach is looking at wooden bats and aluminum bats that are the same mass. She learns that aluminum bats are swung an average of 10.0 miles per hour faster than wooden bats because of the material. Should the coach use this information to decide the material of the bat? Explain.
A. No. The material of the bat is not important. The bats are all the same mass, so they will collide with the ball with the same force.
B. Yes. The coach should choose the aluminum bats because a bat that is traveling faster will collide with the ball with a greater force.
C. Yes. The coach should choose the wooden bats because a slower swing means there is more potential energy, which results in a greater force.
D. No. The material of the bat is not important. The force depends solely on the speed of the ball, not on the speed of the swing.
Answers: 1
Physics, 21.06.2019 21:00
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
Answers: 2
Physics, 22.06.2019 11:30
Two 1.20-m nonconducting wires meet at a right angle. one segment carries + 2.50 µc of charge distributed uniformly along its length, and the other carries - 2.50 µc distributed uniformly along it, as shown in fig. 21.50. ( a. find the magnitude and direction of the electric field these wires produce at point p, which is 60.0 cm from each wire. ( b. if an electron is released at p, what are the magnitude and direction of the net force that these wires exert on it?
Answers: 3
Physics, 22.06.2019 13:50
The magnitude of the poynting vector of a planar electromagnetic wave has an average value of 0.939 w/m^2 . the wave is incident upon a rectangular area, 1.5 m by 2.0 m, at right angles. how much total electromagnetic energy falls on the area during 1.0 minute?
Answers: 2
The coach is looking at wooden bats and aluminum bats that are the same mass. She learns that alumin...
Social Studies, 21.11.2020 02:30
Biology, 21.11.2020 02:30
History, 21.11.2020 02:30
Social Studies, 21.11.2020 02:30
Mathematics, 21.11.2020 02:30
English, 21.11.2020 02:30
History, 21.11.2020 02:30
Mathematics, 21.11.2020 02:30
English, 21.11.2020 02:30
Computers and Technology, 21.11.2020 02:30
Mathematics, 21.11.2020 02:30