d. The barometer is a device to measure atmospheric pressure, if you use barometer made up from liquid mercury what will be the height of the mercury? If you use water instead what will be the height of the water level? Density of mercury 13600kg/m³, density of water 1000 kg/m³ and atmospheric pressure 1.01x10 N/m² e. A block of wood with length, 2.0 m, width, 0.7 m and height, 0.5 m is placed in the water, what is the buoyant force acting on the wood block. Take density of water as 1000 kg/m³.

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Chapter1: Units, Trigonometry. And Vectors
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1. a. When you stand on one foot instead of two, explain what will happen to the force and pressure you exert
on the floor?
b. When you visit doctor office, a nurse calls out your blood pressure as "130/90." In what units your
systolic blood pressure is taken, what will be this value in Pascals.
C.
A nurse needs to inject liquid medicine into your body by exerting a 3N force onto a hypodermic
syringe. If the barrel of the syringe is 5.0 millimeters in diameter and the syringe's needle is 0.25
millimeters in diameter, with how many newtons of force does the medicine come out from the needle
into your body? What principle you use in this problem?
d. The barometer is a device to measure atmospheric pressure, if you use barometer made up from liquid
mercury what will be the height of the mercury? If you use water instead what will be the height of the
water level? Density of mercury 13600kg/m³, density of water 1000 kg/m³ and atmospheric pressure
1.01x105N/m²
e. A block of wood with length, 2.0 m, width, 0.7 m and height, 0.5 m is placed in the water, what is the
buoyant force acting on the wood block. Take density of water as 1000 kg/m³.
Transcribed Image Text:1. a. When you stand on one foot instead of two, explain what will happen to the force and pressure you exert on the floor? b. When you visit doctor office, a nurse calls out your blood pressure as "130/90." In what units your systolic blood pressure is taken, what will be this value in Pascals. C. A nurse needs to inject liquid medicine into your body by exerting a 3N force onto a hypodermic syringe. If the barrel of the syringe is 5.0 millimeters in diameter and the syringe's needle is 0.25 millimeters in diameter, with how many newtons of force does the medicine come out from the needle into your body? What principle you use in this problem? d. The barometer is a device to measure atmospheric pressure, if you use barometer made up from liquid mercury what will be the height of the mercury? If you use water instead what will be the height of the water level? Density of mercury 13600kg/m³, density of water 1000 kg/m³ and atmospheric pressure 1.01x105N/m² e. A block of wood with length, 2.0 m, width, 0.7 m and height, 0.5 m is placed in the water, what is the buoyant force acting on the wood block. Take density of water as 1000 kg/m³.
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