Câu 43. Điện trở R1 = 30 Ω chịu được dòng điện lớn nhất là 2 A và điện trở R2 = 10 Ω chịu được dòng điện lớn nhất là 1A. Có thể mắc nối tiếp hai điện trở này vào hiệu điện thế nào dưới đây? A. 40 V. B. 70 V. C. 80 V. D. 120 V.

Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse

Your science teacher brings in a speaker to talk to your class about climate change. during the session, students ask a few questions. which questions are related to the current evidence on climate change

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction