WebWe have a cell. Let's say this is our cell. And it's given that across the ends of the cell, across the terminals of the cell the potential difference is three volts. And to calculate work done from this number we need to first understand what this number really means. So we have seen in a previous video that volt really means joules per coulomb. WebIf 68 Joules of work were necessary to move a 4 Newton crate, how far was the crate moved? W = 68 J d = W/F d = 17 m F = 4 N d = 68 J/4N 13. How much work is done in …

Calculating Work and Power Work & Energy Quiz - Quizizz

WebThe power P in watts (W) is equal to the energy E in joules (J), divided by the time period t in seconds (s): P (W) = E (J) / t (s) See also. How to convert joules to watts; Watts to … Webdegree; specific heat refers to the heat required to raise the temperature of 1 gram of the substance 1 degree. Thus, heat capacity is an extensive property, and specific heat is an intensive one. 4. Calculate the heat capacity, in joules and in calories per degree, of the following: (a) 28.4 g of water (b) 1.00 oz of lead Solution marpire conseil municipal

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WebIf 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved? 272 m 17 m 4.05 m 272 cm Hint: 17 m Answer The correct answer is: 17 m Solution d=W/F d=68/4 d=17 m Related Questions to study Grade-7 Physics The amount of work done depends upon: W=Fd WebIt says 60 joules of work is done on a gas so that's work done on the gas. That means it's a positive contribution to the internal energy. That's energy you're adding to the gas. So 60 joules has to be positive, and so this is plus the work done is positive 60 joules. Now we can figure it out the change in internal would be negative 90 joules. Web19. How much work is required to lift a 2-kilogram mass to a height of 10 meters? A. 5 joules B. 20 joules C. 100 joules D. 200 joules 20. A garden tractor drags a plow with a force of 500 newtons a distance of 10 meters in 20 seconds. How much work is done? A. 25 joules B. 1,000 joules C. 2,500 joules D. 5,000 joules page 5 Work Energy Review marp image center