Physics, 24.10.2021 14:00 carligreen090
Hai mảnh hình cầu nhỏ thay đổi có cùng bán kính và khối lượng 40 mg, treo ở trạng thái cân bằng trong chân không ,nếu chiều dài của mỗi sợi dây là 50 cm và góc giữa chúng α=10° ,tìm độ lớn của điện tích trên mỗi quả cầu có những thay đổi giống hệt nhau tôi cần câu trả lời gấp
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Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 740 n/m. it is initially at rest on an inclined plane that is at an angle of theta= 26 with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is uk = 0.17. in the initial position, where the spring is compressed by a distance of d = 0.16 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. the block's initial mechanical energy is 9.472 j.b. if the spring pushes the block up the incline, what distance l in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.
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Atoms in a molecule are bonded together by sharing gaining or losing_
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Hai mảnh hình cầu nhỏ thay đổi có cùng bán kính và khối lượng 40 mg, treo ở trạng thái cân bằng tron...
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