An astronaut of mass 180 kg including his suit and jet pack wants to acquire a velocity of 1.8 m/s to move back toward his space shuttle. Assuming the jet pack can eject gas with a velocity of 61 m/s, what mass of gas will need to be ejected? Express your answer to two sign

Q: The maximum running speed (S) in km/hr and the corresponding body mass (m) in kg were determined for…

A: Unit of speed is km/hr Unit of mass is kg The relation between speed and mass is  S=5.7m2Unit of…

Q: You have an 18-carat gold coin (an alloy of gold and copper). Its mass is 6 grams. Using the fact…

A: Given: Mass of gold coin =6 grams Density of pure gold =19300 kg /m3 Density of copper =8960 kg /m3

Q: You are watching a National Geographic Special on television. One segment of program is about archer…

A: Initial speed is The vertical height is Note:Find:The launch angle.

Q: The 5.4-Mg bus B is traveling to the right at vB = 18 m/s. Meanwhile a 2-Mg car A is traveling at v₁…

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Q: A student is trying to determine the muzzle velocity (initial) of a bullet that is to0 fast to…

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Q: What is the (approximate) mass of air in a typical room with dimensions 5.9m x 3.5m x 2.6m? Express…

A: Write the expression for the volume of the room and substitute the corresponding values.…

Q: 10.20-g bullet is fired into a stationary block of wood having mass m = 4.940 kg. The bullet imbeds…

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Q: The 5.1-Mg bus B is traveling to the right at vp = 18 m/s. Meanwhile a 2-Mg car A is traveling at VA…

A: We will use the concept of conservation of linear momentum

Q: Problem 1. A 16 gram mass is moving at 30 cm/sec while a 4 gram mass is moving in an opposite…

A: Given data:  Mass of first object (m1) = 16 g Initial velocity (V1) = 30 cm/s Mass of second object…

Q: A molecule of mass 89.3 atomic mass units moving at 0.80 km/s to the right, and another molecule of…

A: Answer: 0.6 km/s

Q: A cylindrical enclosure is rotated rapidly and steadily about a horizontal axis. Molten metal is…

A: What rotation rate, in revolutions per minute, is required. Given, inner radius of copper…

Q: 1. Using at least 75% of the graph paper, make a graph with 2 on Y axis and √T, on the X axis. 2.…

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Q: Underwater, you can just barely lift a 75.0 kg rock (density 3.20 g/cm3 ). How massive a rock could…

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Q: A 68 kg college student's body has a typical density of 1050 kg/m³. Part A What is his volume?…

A: Density (ρ) = Mass (m) / Volume (V)Where:ρ = Density (in kg/m^3)m = Mass (in kg)V = Volume (in…

Q: *100. GO A gold prospector finds a solid rock that is composed solely of quartz and gold. The mass…

A: Given Mass of the rock            = 12.0 kg The volume of the rock = 4.00×10-3m3

Q: A nerve conduction velocity test (NCV) is an electrical test that is used to evaluate the function…

A: Given data:  Length of nerve cell (l) = 0.90 m Conduction velocity (v) = 30 m/s Required: Time (t)

Q: Test Material   Mass                              Collision Time Phone only (no case) 6.2 oz.…

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Q: A 20 g ball of clay traveling east at 4.0 m/s collides with a 40 g ball of clay traveling north at…

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Q: dg = -m1g- dt - mh (1) dh = m4g - dt - mzh (2) where g = g(t) represents the amount of glucose…

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Q: Direction: Read and analyze the given problems. Solve each problem by showing your solution. Box the…

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Q: uniform silver sphere and a uniform gold sphere have the same mass. What is the ratio of the radius…

A: Volume of sphere = (4/3) π r3  density of gold =19,300 kg/m3  density of silver = 10 490 kg/m3

Q: A 1000kg car traveling east at 30mi/hr collides with a 2000kg truck traveling west at 30 mi/hr. The…

A: Given: M1 = 1000kg V1 = 30 mi/hr east M2 = 2000kg V2 = 30 mi/hr west

Q: Find the momentum of an object as it moves. The said object has a mass = (53.25 ± 0.05) g and…

A: P=m×vvelocity=distancetime  =125.23.5                                     =35.77cm/snow, ∆vv…

Q: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are…

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Q: An object of mass 200 kg is released from rest from a boat into the water and allowed to sink. While…

A: Given:mass of the object, m = 200 kgbuoyant force, Fb = W50  water resistance firce, Fr =…

Q: A 0.018-kg bullet is fired into a stationary block of wood of mass of 4.95 kg. The relative speed of…

A: mass of bullet (m) = 0.018 kg Initial velocity of bullet (u) = 469 msmass of block (M) = 4.95 kg…

Q: B-The equation of motion of spherical bubble growing freely in an inviscid Iquid is given a as…

A:

Q: On a perfect fall day, you are hovering at a low altitude in a hot-air balloon, accelerated neither…

A: On a perfect fall day, you are  hovering at a low altitude in a hot air balloon. Total weight of the…

Q: Sand has a desity of 1621 kg/m^3  What is the mass of a one liter water bottle full of sand? and…

A: Given data:  Bottle filled with sand  Density (ρ) = 1621 kg/m3  Volume (V) = 1 L Required: The mass…

Q: A 20 gg ball of clay traveling east at 2.0 m/sm/s collides with a 20 gg ball of clay traveling north…

A: (given)        Mass m1 of ball travelling east  = 20 g = 0.02 kg   Velocity vx1 of ball travelling…

Q: One mole of Gold (Au) atom has a mass of 197 g. We know that the density of gold is 19.30 g/cm3 in…

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Q: You have been given a small rock sample to identify based on its density. Suppose that you use the…

A: M= 330g = 0.33 kg  V= 0.0001m3

Q: What force does the clay exert in stopping the musket ball

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Q: A soccer ball of 4.40925 (2 kilosg) pounds moves to the right a speed of 0.5 m/s.  Hits a 0.1102311…

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Q: In a hydrochloric acid (HCI) molecule, the distance between the hydrogen atom and the chlorine atom…

A: