Mengapakah air mengambil masa yang lebih lama untuk mendidih apabila ia diapanaskan di paras laut berbanding dengan di puncak gunung walaupun pemanas yang mempunyai spesifikasi yang sama digunakan?

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Which notation is used to represent an alpha particle? a. b. c. d.

It's a snowy day and you're pulling a friend along a level road on a sled. you've both been taking physics, so she asks what you think the coefficient of friction between the sled and the snow is. you've been walking at a steady 1.5m/s, and the rope pulls up on the sled at a 32 ∘ angle. you estimate that the mass of the sled, with your friend on it, is 65 kg and that you're pulling with a force of 80 n .