2 (a) State what is meant by work done.---[1](b) A beach ball is released from a balcony at the top of a tall building. The ball falls vertically from rest and reaches a constant (terminal) velocity. The gravitational potential energy of the ball decreases by 60J as it f...
3 (a)State what is meant by simple harmonic motion.[2](b) A trolley o f mass m is held on a horizontal surface by means o f two springs. One spring is attached to a fixed point P. The other spring is connected to an oscillator, as shown in Fig. 3.1.spring trolley spring osc...
(b)State what is meant by the terms(i) element,(substance that) cannot be split up/ broken down into (two or more) simpler substances by chemical means1...OR(substance) made of atoms with the same atomic number/ number of protons/ proton number.on number... [1](ii) compound,(two...
(a) State what is meant by the specific latent heat of fusion (melting) of a substance.[2] 相关知识点: 试题来源: 解析 (a) energy/heat needed to change state of substance/melt(from solid to liquid at constant temperature/ melting point) per kg/per unit mass ...
Solid-state drives are defined by three main form factors: thephysical sizeof the drive itself, the type ofconnection interfaceit uses, and how muchspacethe SSD takes up in the device. An SSD’s form factor is part of its overall compatibility in laptops, tablets, and traditional desktop co...
4 (a) State what is meant by the term polarisation when applied to a wave.[1](b)Explain why only transverse waves can be polarised.[2](c)Some films released have enabled viewing in three dimensions (3D). This can be done using two superimposed polarised images on the screen. One of ...
aIt is necessary to define what is meant by diagnosis or troubleshooting because the termsare used differently in the literature. Sometimes diagnosis refers only to the process from identification of the symptom to the determinationof the fault. In other cases, especially when onespeaks about trouble...
0 3.1 State what is meant by a capacitance of 370 uF[2 marks03 2The charging of a 370 uF capacitor is investigated using the circuit shown in Figure 4.Both meters in the circuit are ideal.Figure 4R switch9.8 V(V370uF AThe power supply of emf 9.8 V has a negligible internal resistanc...
Can you post a small sample drawing containing a "closed object from polyline command" whose sides are affected by LENGTHEN? It won't do that for me. What are your exact steps [maybe a screencast]? The only thing I can imagine is that the Polyline is not actually "close...
aIt is necessary to define what is meant bydiagnosis or troubleshooting because the termsare used differently in the literature. Sometimesdiagnosis refers only to the process from iden-tification of the symptom to the determinationof the fault. In other cases, especially when onespeaks about trouble...