Một ô tô đang chạy với vận tóc không đổi 25m/s trên một quãng đường thẳng thì người lái xe hãm phanh lại cho ô tô chuyển động chậm dần đều sau khi chạy thêm đc 80m thì vận tốc ô tô còn 15km/s a) tìm gia tốc của ô tô trong 80m đoạn đường này
b) nếu xe tiếp tục chuyển động như vậy sau bao lâu xe dừng lại?
c) tìm quãng đường trong giây cuối cùng ? Còn

Which of the following statements is true about women and minorities in early psychology? a. in the early 20th century, numerous graduate schools recruited women and minorities to study psychology. b. opportunities in higher education were limited for women and minorities in the early 20th century due to discrimination. c. despite some obstacles, there were numerous employment opportunities for women and minorities. d. women and minorities were often selected to do academic research in an effort to make the field more diverse.

Two pans of a balance are 24.1 cm apart. the fulcrum of the balance has been shifted 1.33 cm away from the center by a dishonest shopkeeper. by what percentage is the true weight of the goods being marked up by the shopkeeper? assume the balance has negligible mass. answer in units of %.

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 .