Springs 1 and 2 are identical. What is the mass of the unknown block, in kg? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. 100 g 10 20 3 Ô

Q: The human heart is a powerful organ. If your heart can take in and discharge about 6773.2 liters of…

A: Given Volume of blood , V = 6773.2 L  Density of blood , D = 1.06 kg/L  Height lift ,H = 1.7 m  Time…

Q: By what percent has the cubic term increased the work over what would be needed to compress an ideal…

A: Write the expression for the ideal spring work and substitute the corresponding values.

Q: of work. Assuming that you weigh 800 N, how high could the engine lift you?

A:

Q: s to lift 517 litres of water per minute to a height of 11 m.  What is the minimum power output (in…

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Q: (a) What is the efficiency of an out-of-condition professor who does 2.00 x 105 J of useful work…

A: A) W= 2×105 J  E= 500kcal = 21× 105 J  B) efficiency = 20%

Q: Which of the following statement is correct for tidal energy? O noise pollution is higher O The ebb…

A: The correct answer is given below

Q: In the given question as follow, find the work done in pumping gasoline that weighs 42 pounds per…

A: Given-Wper volume =42 pounds/feet3L= 4 feetD=3 feet habove=5 feet

Q: (a) What is the efficiency of an out-of-condition professor who does 2.00 ✕ 105 J of useful work…

A: The efficiency of is calculated as useful workmetabolizing enegy×100%

Q: I performed a lab using a toy car to go down a ramp that was positioned at different heights. For…

A: The work done by the force of gravity on car is calculated by the following equation. Here, m is…

Q: the basics of work and energy.

A: Work is the product of the displacement of the body with the force acting on it in the direction of…

Q: You attempt to lift a 1200 N barbell for 10 min, excreting a 1200 N force, but won't move. How much…

A: Required : Amount of work done.

Q: Simplify Derivation + Integration

A: To Find :  Find the work done and do the calculation in detail

Q: On October 9, 1992, a 27-pound meteorite struck a carin Peekskill, NY, creating a dent about 22 cm…

A:

Q: When a spring is stretched by 1.00 m, its spring potential energy is 20 J. What is the spring…

A: The stretching in spring is The spring potential energy is Note:Find:(a) Spring constant.(b)…

Q: (a) What is the efficiency of an out-of-condition professor who does 2.10 x 105 J of useful work…

A: A) work = 2.1 × 105 J      Food Energy = 500×1000 cal                             = 21× 105 J  B)…

Q: Calculate Work by Force F applied to mass M=3.0 Kg, producing displacement r. F = 5.1 x + 3.2 y…

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Q: A trough is 6 meters long, 3 meters wide, and 5 meters deep. The vertical cross- section of the…

A: Given data: A trough is 6 meters long 3 meters wide and 5 meters deep. The vertical cross-section of…

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A:

Q: tank in the shape of a right circular cone, apex down, is filled with olive oil weighing 45lbs/ft^3.…

A:

Q: (a) What is the efficiency of an out-of-condition professor who does 2.10 x 10° J of useful work…

A: a) We know that, efficiency= (output/input)x100 So here output is 2.10×10^5 joule and input is…

Q: If work is a scalar quantity, how would explain the negative work done

A: Work is a scalar quantity because it is the dot product of two vectors (Force and displacement),…

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A:

Q: A horizontal f orce of 140 Newton is needed to pull a 60.0 kilogram box across a horizontal floor at…

A: Given,Mass of the box, m = 60.0 kgHorizontla Force, F = 140 Nbox is moving with constant speed.

Q: a) What is the efficiency of an out-of-condition professor who does 1.90 ✕ 105 J of useful work…

A: Useful work done : W = 1.90 ✕ 105 J Heat provided by food: Q = 510 kcal = 2.134 x 106 J…

Q: (a) What is the efficiency of an out-of-condition professor who does 2.30 ✕ 105 J of useful work…

A:

Q: 3. A spring has a resting length of 10 cm. A 40 N force is required to stretch the spring to a…

A:

Q: A spherical tank of diameter 4 m is half-full of water (weight density = 9800 N/m³). Setup the…

A:

Q: A circular swimming pool full of water has a diameter of 24 ft and the sides are 5 ft high. Set-up…

A:

Q: An object of mass 3 grams hanging at the bottom of a spring with a spring constant 4 grams per…

A: Given Data: The mass of the object is 3 gms.The spring constant is 4 g/s2.To Find: The differential…

Q: A trough is 4 meters long, 2 meters wide, and 3 meters deep. The vertical cross-section of the…

A: Given, a trough has a length  l=4 mw=2 md=3m The vertical cross-section of the trough parallel to…

Q: 8, = 20m/so, = 20m/s :A stone trough away with the velocity of from the hight of 45 m with an angle…

A: Horizontal range of projectile fired from the height is as follows: R=uxTR=ucosθT…

Q: 4. If the work required to stretch a spring 0.25?? beyond its natural length is 12 ?? − ??, how much…

A: We know that work required to be done to stretch a spring by x from it's natural length is given by…

Q: Given: The energy equivalent of one gallon of gasoline is 1.3 x 10° J. A compact car has a mass of…

A: Given: The energy equivalent of one gallon of gasoline is Ee,gasoline=1.3×108 J/gal, The mass of…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!