trong trường hợp nếu có sự chạm đất với dòng điện chạm đất Id =100A ở nơi có điện trở suất của đất là p =1040hm. cm thì điện áp bước đặt vào người khi đứng cách chỗ chạm đất 2,2 m là bao nhiêu?biết a=(0,4-0,8)m

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Abookcase has a mass of 38 kg and the coefficient of friction between it and the floor is 0.82 what is the maximum force of friction between the bookcase and the floor a 372n b 305n c 412n d 449n