Four objects have masses 2.5 kg, 1.54 kg, 3.668 kg and 5.1278 kg. Find the total mass up to appropriate significant figures.
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- 3 sig figsA force F1 of magnitude 6.30 units acts on an object at the origin in a direction θ = 47.0° above the positive x-axis. (See the figure below.) A second force F2 of magnitude 5.00 units acts on the object in the direction of the positive y-axis. Find graphically the magnitude and direction of the resultant force F1 + F2.Calculate the mass (in SI units) of a 140 lblb human being. Express your answer with the appropriate units.
- A study finds that the metabolic rate of mammals is proportional to m3/4, where m is the total body mass. By what factor does the metabolic rate of a 70.0-kg human exceed that of a 3.98-kg cat?Kirsten Biorn has just given birth to a bouncing 8 lb, 8 oz baby girl. How should she describe the weight of her child to her brother, who lives in Denmark — in metric units, of course? (1 lb= 16 oz exactly, 1 lb= 454 g).In the following calculations, be sure to express the answer in standard scientific notation with the appropriate number of significant figures. 3.78 x < 107 g – 4.701 × 105 g - x 10 g
- Newton's law of universal gravitation can be expressed by the equation F = G Mm r2 , where F is the gravitational force, M and m are masses, and r is a length. Force has the SI units kg · m/s2. What are the SI units of the proportionality constant G?Pls help ASAP. Pls give the significant figures of each of the answer.A rectangular container measuring 18 cm ⨯ 45 cm ⨯ 61 cm is filled with water. What is the mass of this volume of water in kilograms and grams? (Take the density of water to be 1000 kg/m3.)
- The total mass of Abdul and his baby brother is 15.25kg. The total mass of Abdul and his father is 72.25kg. Abdul's father is 13 times as heavy as Abdul's baby brother? What is Abdul's massBlood flows through the aorta at an average speed of v = 18 cm/s. The aorta is roughly cylindrical with a radius r = 17.0 mm. The volume rate of blood flow through the aorta is πr2v. Calculate the volume rate of blood flow through the aorta in L/min.If a force, F, has a magnitude of 45 N and is at an angle of 65 degrees (relative to the x-axis) then what is the magnitude of the x and y components (Fx and Fy) of this force? Double check your result by calculating the total force and angle using Fx and Fy.