A certain quantity of water cools from \( 70^{\circ} \mathrm{C} \) to \( 60^{\circ} \mathrm{C} \... VIDEO
A certain quantity of water cools from \( 70^{\circ} \mathrm{C} \) to \( 60^{\circ} \mathrm{C} \) in firsts 5 minutes and to \( 57^{\circ} \mathrm{C} \) in the next 5 minutes. The temperature of the surroundings is:https://bit.ly/YTAI_PWAP https://www.pw.live
Other Videos By PW Solutions 2023-05-15 In the following common emitter configuration, an npn transistor with current gain \( \beta=100 ... 2023-05-15 A perfect gas contained in a cylinder is kept in vacuum. If the cylinder suddenly bursts, then t... 2023-05-15 The resistance \( R=\frac{V}{I} \), where \( V=100 \pm 5 \) volts and \( I=10 \pm 0.2 \) amperes... 2023-05-15 Select the correct I.U.P.A.C. name for \( \mathrm{Fe}\left(\pi-\mathrm{C}_{5} \mathrm{H}_{5}\rig... 2023-05-15 If potassium chlorate is \( 80 \% \) pure then \( 48 \mathrm{~g} \) of oxygen would be produced ... 2023-05-15 In defining the standard of length, we have to specify the temperature at which the measurement ... 2023-05-15 \(\sin ^{ { -1 } } \left( \dfrac { 1 }{ \sqrt { 2 } } \right) +\sin ^{ { -1 } } \left( \dfrac ... 2023-05-15 Find the smallest number which leaves remainders 8 and 12 when divided by 28 and 32 respectively. 2023-05-15 Write the following sets in roster form: \( D=\left\{x: x\right. \) is an integer, \( \left.x^{2... 2023-05-15 A ball of mass math xmlns=http://www.w3.org/1998/Math/MathMLmim/mi/math moving with speed u unde... 2023-05-15 A certain quantity of water cools from \( 70^{\circ} \mathrm{C} \) to \( 60^{\circ} \mathrm{C} \... 2023-05-15 Haemoglobin contains \( 0.334 \% \) of iron by weight. The molecular weight of haemoglobin is&nb... 2023-05-15 The \( A B C \) is a triangular plate of uniform thickness. The sides are in the ratio shown in ... 2023-05-15 \( \mathrm{HCl} \) was passed through a solution of \( \mathrm{CaCl}_{2}, \mathrm{MgCl}_{2} \) a... 2023-05-15 The compound that is most difficult to protonate is : 2023-05-15 The rate of radioactive disintegration at an instant for a radioactive sample of half life \( 2.... 2023-05-15 Which of the following is as same as \( x \in[-3,-1) \cup(1,3] \). 2023-05-15 Express \( 32.12 \overline{35} \) in the form of \( \frac{p}{q} \) 2023-05-15 The simplest formula of a compound containing \( 50 \% \) of element \( \mathrm{X} \) (atomic ma... 2023-05-15 Select the optically active compound among following :
img src=https://penpencil-static-c... 2023-05-15 Carnot engine, having an efficiency of \( \eta=1 / 10 \). As heat engine, is used as a refrigera...
0