Physics, 17.10.2021 01:30 jnkbragg3696
Bánh xe ô tô có đường kính 25cm. Xe trên đi liên tục với vận tốc 20 km/h trong vòng 30 phút. a) tính quãng đường ô tô đã đi. b) Tính số vòng quay của bánh xe đã quay để đi được quãng đường trên
Answers: 3
Physics, 21.06.2019 21:00
Ahowler monkey is the loudest land animal and, under some circumstances, can be heard up to a distance of 4.6 km. assume the acoustic output of a howler to be uniform in all directions and that the threshold of hearing is 1.0 × 10-12 w/m2. what is the acoustic power emitted by the howler
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Physics, 22.06.2019 04:00
Assume similar data for the motion of the blood in your aorta. estimate how many beats of the heart it will take the blood to get from your heart to your brain. (assume that the distance from your heart to your brain is 30 cm)
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Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
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Physics, 22.06.2019 22:30
Materials will have different energies associated with the electrons inside them. this is related to how strongly bound they are by their work function. if we sandwich a material with a very low energy between two materials with a high energy, we create a trap for an electron. if this trap is very narrow in one direction in comparison to the others, this is approximately a 1-dimensional box that confines the electron. what is the lowest energy of an electron in the box if the thinnest direction across the materials is 4.81 nm?
Answers: 3
Bánh xe ô tô có đường kính 25cm. Xe trên đi liên tục với vận tốc 20 km/h trong vòng 30 phút. a) tính...
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