Ageiger-muller (gm) tube can be used to detect ionising radiation. how many alpha particles entering the gm tube are needed to make the counter advance by one? give your answer in numbers, not words.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

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

Charge is distributed along the entire x-axis with uniform density λ. how much work does the electric field of this charge distribution do on an electron that moves along the y-axis from y = a to y = b? (use the following as necessary: a, b, ε0, λ, and q for the charge on an electron.)