Aman is running through a train tunnel. when he is $\frac{2}{5}$ of the way through, he hears a train that is approaching the tunnel from behind him at the speed of 60 mph. whether he runs ahead or runs back, he will reach an end of the tunnel at the same time the train reaches that end. at what rate, in miles per hour, is he running
Answers: 3
Physics, 22.06.2019 07:00
Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j
Answers: 1
Physics, 22.06.2019 14:30
Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?
Answers: 2
Physics, 22.06.2019 18:00
Consider two regions of space containing a static electric field, region a and region b. in region a the equipotential lines are more closely spaced than those in region b. what can be said about the relative strength of the electric field in the two regions? a) the electric field in region a is stronger th
Answers: 3
Physics, 22.06.2019 21:30
Complete the sentence to describe the law of conservation of energy. the law of conservation of energy states that energy cannot be created
Answers: 3
Aman is running through a train tunnel. when he is $\frac{2}{5}$ of the way through, he hears a trai...
Mathematics, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
World Languages, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
English, 26.02.2021 14:00
Social Studies, 26.02.2021 14:00
Chemistry, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00
Mathematics, 26.02.2021 14:00