Jason has a boat with a motor that drives it at 4.5 km/h in still water. He starts motoring downstream in a river at 9:00 a.m. The current in the river moves at 2.5 km/h. At 9:30 a.m., one of the lifejackets fell overboard and started drifting downstream on its own. At 10:00 a.m., Jason noticed that the lifejacket was missing and saw the missing lifejacket. He turned the boat and motored upstream. At what time did he recover the lifejacket? Explain your reasoning. (T-2, A-2, C-1)

Q: a 0.140 m high cylinder is filled with mercury (density=13600 kg/m3) what is the pressure at the…

A: P=Po+h*d*gh=heightd=densityg=acc. due to gravityPo=atmospheric pressure

Q: Find all the missing values in the following circuit and indicate the direction of the current flow:…

A:

Q: Refer to Multiple-Concept Example 7 for insight into this problem. During a tennis serve, a racket…

A: The angular-acceleration oft he rocket is 123 rad/s2.The angular speed of the rocket is 13.3…

Q: If there are 20 mmol of the radioactive isotope 3H (half-life 12 years) at t = 0, how much 3H remain…

A: Initial concentration of radioactive element  is Half-life time is Find:(a) Concentration of at…

Q: Suppose that you are travelling on board a spacecraft that is moving with respect to Earth at…

A: Relative Speed , Breathing rate, .To calculate ,breathing rate as monitored on earth

Q: A student is pulling a crate with a mass of 83.0 kg along a horizontal frictionless floor with a…

A:

Q: a. A particle is undergoing a uniform rectilinear motion and the displacement as a function of time…

A:

Q: gravitational force of attraction between any two point masses is attractive and the magnitude:…

A:

Q: 5. A box of mass 6.80 kg is pulled from rest up a 46.0 m long incline that makes an angle of 20.0°…

A: mass = m = 6.8 kgdisplacement = 46 mfinal speed = V = 4.35 m/sinitial speed = V0 = 0 m/s

Q: At t₁ = 3.00 s, the acceleration of a particle moving at constant speed in counterclockwise circular…

A:

Q: Car A is moving at a speed of 10 m/s while car B is moving at a speed of 5 m/s as shown in Figure 2.…

A:

Q: 4. A ship flies at 0.82c and is observed by ground-based radar to be 65 m in length. What is the…

A: We know Formula from length contraction :

Q: The third stage of a rocket is injected by its booster with a velocity u of 13180 km/h at A into an…

A: Here we can splut the motion into two prependicular motions i.e. in x axis and in y axis.Moreover ,…

Q: The mass of a planet X is 4.23x1024 kg and its radius is 7.24x106 m. Find the acceleration of…

A: The mass of the planet is 4.23x1024 kg.The radius of the planet is 7.24x106 m.

Q: -3.5 cm A -5.0 cm TX A 10 cm A A A=1.5

A: For the wave in blue colorAmplitude is Wavelength is For the wave in Red color Amplitude is…

Q: A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the…

A: Just after leaving the slide the person moves a horizontal distance of R = 5.0 m Time taken in…

Q: Three people talk simultaneously. If the intensity level is 84 dB when each speaks alone, what is…

A: The number of the people is 3.The sound level of the each person is 84 dB.

Q: Long flights at midlatitudes in the Northern Hemisphere encounter the jet stream, an eastward…

A: Distance between two cities = d= 4600 kminitial air speed of the plane = 1000 km/hDifference in…

Q: In case (a), the baseball player stands relatively stationary and throws the ball with the initial…

A: Page 1

Q: Solve correctly please, should correct. A 60 g ice cube at -15°C is brought into thermal contact…

A:

Q: Two masses, m₁ = 5.00 kg and m2 = 8.00 kg are separated by a distance of 8.00 cm. 4.2 x 10-7 N 5.3 x…

A:

Q: During an arm curl movement with a dumbbell, the elbow flexors are in an eccentric contraction when…

A: During an arm curl motion with a dumbbell, the elbow flexors are in an eccentric contraction when…

Q: 2) Consider the Circuit below. Determine the equivalent capacitance of the circuit and the charges…

A:

Q: 9.60t i+ 3. The position of a particular particle as a function of time is given by r = 8.58…

A: To determine the particle's velocity and acceleration as a function of time, we need to…

Q: A person is sitting in a bus driving at voa=58.0000 km/h . There is an ambulance coming from the…

A:

Q: - 5 -- The curved section of a horizontal highway is a circular unbanked arc of a radius of 370 m.…

A:

Q: On the basis of your second set of data, are there any patterns to the way that currents behave in a…

A:

Q: A baseball leaves a pitcher's hand horizontally at a speed of 125 km/h. The distance to the batter…

A:

Q: A 0.700 kg hammer is moving horizontally at 4.00 m/s when it strikes a nail and comes to rest after…

A:

Q: What is the nature of the central force acting on a particle moving in a circular orbit?

A: What is the nature of the central force acting on a particle moving in a circular orbit?

Q: Unit 3 - Projectile Motion Two cliff jumpers Omar and Beccy are standing on a cliff, 25m high. Both…

A: Height of cliff H= 25 mSpeed of omar u=14 m/s

Q: Determine the currents I₁, I2, and I3 for the electrical network shown in the figure. I₁ R₁ = 392 1₂…

A:

Q: Free-body diagram Assume any frictional force shown in the diagram is zero. If the skiler is…

A:

Q: (a) 1.0 kg of water with initial temperature Twin = 10 °C is mixed with 5.0 kg of ice with initial…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Find the work done by the force field F(x, y) = x²i+ yexj on a particle that moves along the…

A:

Q: What is the typical quantity of electricity a computer consumes?

A: The quantity of electricity consumed by a computer can vary widely depending on several factors,…

Q: The minute hand of a wall clock measures 12 cm from its tip to the axis about which it rotates. The…

A: “Since you have posted a question with multiple sub parts, we will provide the solution only to the…

Q: The hanging mass creates a constant tension T that causes the cart (mass m) to accelerate along a…

A: Constant tension acting on cart=TTrack is frictionless.

Q: A 7.0 μF capacitor, a 12 μF capacitor, and a 19 F capacitor are connected in series. Part A What is…

A: The capacitance of the capacitors are .The connection of the capacitors is in series.

Q: intake vaive intake compression Tuel Injector power the temperature of the gas; exnaust vaive…

A: In a petrol engine, the operation of the cylinder can be analyzed using the first law of…

Q: Q - A tank contains air at an absolute pressure of 422 kPa and a temperature of 20 C. Neglect any…

A:

Q: When a gymnast performs a giant circle around the high bar there is one point in the rotation where…

A: Given that when a gymnast performs a giant circle around the high bar there is one point in the…

Q: The diagram shows two charges situated in a plane. What is the electric field at point P?

A: Charges as and Distance between charges is Distance between point P and charge is…

Q: You are working out on a rowing machine. Each time you pull the rowing bar (which simulates the…

A: Displacement (d) = 1.30 mTime (t) = 1.50 sPower (P) = 97.0 WRequired:Force (F)

Q: Suppose a bag of nails is attached to a supporting rod by a rope. Note that the bag hangs motionless…

A: Force of gravity, F = 25 NMass, m = 2.55 kgTension, T = ?

Q: For a car traveling at speed Vo, it is possible to bank a curve at just the right angle β so that…

A: Let the mass of car be m, The normal force acting on the car is NThe speed of the car is V0The…

Q: 4. Using the given circuit, where V = 6V, C₁ = 470 µF, C2 = 330 μF, and C3 = 100μF, determine…

A:

Q: Experiment 2- Cart attached to spring on inclined track Consider the apparatus below. Motion sensor…

A:

Q: 485 2 resistor, an uncharged 1.50 μF capacitor, and a 6.18 V emf ar (a) What is the initial current…

A:

Q: Kevin, Ian and Evan have become championship golfers (at least on their phones....).   Ian, just…

A:

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.