A diver explores a shallow reef off the coast of Belize. She initially swims 90.0 m north, makes a turn to the east and continues for 200.0 m, then follows a big grouper for 80.0 m in the direction 30° north of east. In the meantime, a local current displaces her by 150.0 m south. Assuming the current is no longer present, in what direction and how far should she now swim to come back to the point where she started?

Q: A balloon filled with helium gas has an average density of ρb = 0.31 kg/m3. The density of the air…

A: The final answer is: Fb​=0.905 NExplanation:Step 1: The buoyant force Fb​ can be calculated using…

Q: A spherical diving bell containing a camera is in the ocean at a depth of 115 m. It has a flat,…

A: The pressure at the depth is P=Pa+ρgh=101325 Pa+1025 kg/m39.8 m/s2115 m=1256500 Pa

Q: PHYS-91; Multiple Choice: A 10,000-watt motor operates an elevator weighing 5000 newtons. Assuming…

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Q: A flow field is determined by u= 8y, v= 4xy, w= 7z. Derive expressions for the x, y and z components…

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Q: After completing your physics class, you are hired to help design a cigar lounge in a nightclub. The…

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Q: A fire truck raises its bucket so that a firefighter can spray water on the fire from above. The…

A: horizontal distance of truck from house = 33 m H = 9 m initial horizontal speed = 20 m/sUsing…

Q: In a water pistol, a piston drives water through a larger tube of area A, into a smaller tube of…

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Q: In a water pistol, a piston drives water through a larger tube of area A, into a smaller tube of…

A: Given:radius of larger tube, r1 = 1.40×10−2 mradius of smaller tube, r2 = 1.10×10−3 mif we take…

Q: •The horizontal Velocity of wind against sail = 5.7 m/s. along the front surface, 3.2 m/s back…

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Q: A spherical diving bell containing a camera is in the ocean at a depth of 155 m. It has a flat,…

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Q: Object A floats in fresh water with 45% of its volume under water. What is the density of the Obiect…

A: Given that, Object A floats in freshwater with 45% of its volume underwater.  We need to find the…

Q: Water flows steadily through the double elbow shown in Fig. 5. Water flows into the elbow from the…

A: Write the expression for the mass flow rate at section 1 and substitute the corresponding values.…

Q: In medicine, it is often important to monitor the blood flow in certain areas of the body. However,…

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Q: Two streams form a river . One stream has a width of 8.2 m , depth of 3.4 m , and current speed of…

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Q: A communications company is laying cable underground between 2 subdivisions, A and B, on opposite…

A: Simple problem of geometry and general aptitude. Please have a good look

Q: 5. Water is flowing downhill at 8.0m/s through a pipe that is at an angle of 66.4° with the hori-…

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Q: Two streams merge to form a river. One stream has a width of 8.3 m, depth of 3.6 m, and current…

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Q: (e) just clearly explain your work: a drop in pressure could lead to the collapse of the narrow…

A: (e) If there is a pressure drop happens in the narrow section of the artery, blood will not be able…

Q: A.) When rebuilding his car's engine, a physics major must continuously exert 1.16 ✕ 102 N of force…

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Q: A typical military submarine can submerge to about 730 m before collapsing under the outside water…

A: Given  The submerged distance under the water is h = 730 m. The acceleration due to gravity in…

Q: 4. A firefighter located a distance of 24.0 m from a burning building, directs a stream of water at…

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Q: A 15.0 m tall water tower in Mount Pearl, off Wyatt Boulevard, is filled to the top with fresh St.…

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Q: The Huka Falls on the Waikato River is one of New Zealand's most visited natural tourist…

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Q: A firefighter 480 m away from a burning building directs a stream of water from a fire hose at an…

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Q: Two vectors have the following magnitude, A = 10.5 m and B = 10.1 m. Their vector product is:…

A: Data provided: Magnitude of vectors A = 10.5 m and B = 10.1 m A⨯B = -4.6 m i + 7.6 m k.

Q: When Nate fully exhales, he has a body density of 1.02 g/cm3 (1020 kg/m3). During a triathlon swim,…

A: Archimedes gave the principle of flotation which helps in deciding whether an object will float or…

Q: 3. A circular swimming pool 16 ft in diameter is being filled with two garden hoses, each having an…

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Q: A barge, 2 meter in width, 5 meter in length and 2-meter high will traverse the shorelines of…

A: The given information in the question are : Mass of barge = 2000 kg  Dimensions of barge, Length of…

Q: You are preparing some apparatus for a visit to a newly discovered Planet X, having oceans of…

A: Let assume density of apparatus ρ, and volume V Density of water on earth ρw = 1000kg/m3 Density of…

Q: The old rubber boot filled with water to a height of H = 0.35 m, has a small leak at a height of h =…

A: Given data:    H=0.35 m h=0.12 m

Q: Two streams from a river .One stream has a width of 8.2 m ,depth of 3.4 m and current speed of 2.3…

A: (given)    Width of one stream = 8.2 m    Depth of one stream = 3.4 m              Current speed =…

Q: Wastewater is flowing in an open channel at a depth of 2.1872 yards and a velocity of 3.2808…

A: GivenIn an open channelSection 1Depth of channel, x1=2.1872 yardsvelocity of flow, v1=3.2808…

Q: About 32% of the body of a person floating in the Dead Sea will be above the water line. Assuming…

A: Dear student The buoyancy force on any object in liquid is given by: Fb = p×Vd×g Here  p = density…

Q: A truck is placed on a raft, which causes the raft to drop 0.0367 meters lower into the water. The…

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Q: How long will it take Guard A to wind in a lane? a. b. How long will it take Guard B to wind in a…

A: Given Diameter of machine=0.5 m  Radius=0.25 m Length of pool=50 m

Q: Q.3. A battle ship weighs 127.53 MN. On filling the ship's boats on one side with water weighing…

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Relative Velocity

It is a measurement of an object with regards to the other object which is moving or stable or stationary. For example, if we are traveling in a bus and the bus is moving at speed of 50km/hr, then our speed is according to the nearby passenger on the bus is zero. According to them, we are not moving. But if one person standing on the ground or road observes us from outside of the bus, according to him we are moving at a speed of 50km/hr and the bus is also moving at a speed of 50km/hr. Now, the motion is recognized by the observer, it depends on a frame of reference or observer. This is motion called relative motion.