1.A motorboat was moving E 20° S] at 50.0 km/h. The operator then turned the boat E 20° N] and decreased the speed to 30.0 km/h over 5.0 mim. Determine the average acceleration of the boat.

Q: Find the y-component a force, 120N, acting 45 degrees to the right of the negative y-axis.

A: Given data:  Force (F) = 120 N Angle (θ) = 45° to the right the negative y-axis Required: The…

Q: How many significant digits are there in the number 4530.0. Answer: 5 x

A: According to question we need to find number of significant digits.

Q: Once upon a time there was a lonely mass of 9.07185 kg suspended in thea spring. Its loneliness is…

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Q: M1 = 10 kg No friction M2 = 2 kg uk = 0.1 O = 30° O = 40° Two masses are connected as shown. There…

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Q: How much work is required to turn an electric dipole 180° in a uniform electric field of magnitude…

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Q: In a science experiment, a quantity Q(t) was observed at various points in time t. Time is measured…

A: (a) Using the data of the table: For t=0 , Q(t) = 2.920 Q(t) = Ae-bt 2.920 = Ae-b*0A=…

Q: 4. In the figure, a nonconducting rod of length L = 12.0 cm has a negative charge -q = -4.25 fC…

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Q: the magnetic field is 1.0 x 105 T. 3. Two parallel wire carrying current of 20.0 A are separated by…

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Q: Derive the expression for the magnitude of tangential speed, v, as a function of the period of…

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Q: 1. If you observe a photon of light with a wavelength A = 495 nm what is its frequency (use equation…

A: Given : Wavelength = 495 nm = 495*10-9 m

Q: Problem 5: A merry-go-round at an amusement park consists of an outer ring of horses and an inner…

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Q: A 0.02 kg ball is flying horizontally at 120 mps. It is struck by a force at 40° as shown. The…

A: mass (m)= 0.02 kg vi = 120 ms i^θ = 40o

Q: Part A The spring in the figure has a spring constant of 1200 N/m. It is compressed 13.0 cm , then…

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Q: ACTIVITY 3: PROBLEM SOLVING Directions: Solve the following problems. Express your final answers in…

A: #3 Given data: The horizontal component of velocity is vH=25 m/s. The time taken in the journey is…

Q: 2. Find kinetic energy of dart leaving gun: 11.4891 m/s 2 DnoI 1 ond anlit

A: To calculate the kinetic energy we use,                           Potential energy= Kinetic…

Q: 5) With A any vector, (Ā · V)F = Ā. (a) Verify this result in Cartesian coordinates. (b) Verify this…

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Q: Solve a. RT total resistance b. IT total current PT total power c. d. Current in each resistor e.…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub parts for…

Q: If each wire in #4 is connected to an identical battery, what is the relationship of the electric…

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Q: 1.) A 30N force acts at a 40° angle from the horizontal on a 30kg block at rest on a perfectly…

A: Given, F=30 Nθ=400m=30 kgd=7.2 m

Q: A small planet having a radius of 1000 km exerts a gravitational force of 100 N on an object that is…

A: Given: Here, the given radius value is R=1000 km. And the given gravitational force is, F=100 N. The…

Q: (1) A student claims that capacitors in parallel combinations have greater equivalent capacitance…

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Q: 3. If a car is traveling at 20 meters per second in a straight line, how many meters will it take…

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Q: (d) Determine the current through each resistor for this parallel connection. What is the total…

A: For a parallel combination of registers Voltage remain the same in all resistances so current will…

Q: E6.A net force of 48.0 N accelerates a 3.5-kg mass over a distance of 12.0 m. What is the work done…

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Q: Problem 3: Shown to the right is a block of mass m sitting on a ramp that makes an angle 0 with the…

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Q: Calculate the horizontal force P on the light 14° wedge necessary to initiate movement of the 32-kg…

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Q: A beam contains 1.7 x 1010 doubly charged positive ions per cubic centimeter, all of which are…

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Q: (a) Find structure factor SG(hkI) of the CsCl structure, shown in the figure, and (b) find SG(hkl)…

A: The most important thing when we are calculating the Structure factor is that the knowledge of…

Q: 2. A solid sphere of radius R-40 cm has a total positive charge of 26 µC uniformly distributed…

A: Given: radius R =40 cm =0.4 mcharge q = 26μC = 26*10-6 C

Q: A rocket of mass 1483 kg accelerates at 294 m/s^2 for 46 s from an initial speed of 1177 m/s. How…

A: Given: In this question, the given details are, A rocket of mass 1483 kg accelerates at 294 m/s2 for…

Q: Q4: A copper ball is heated to a temperature of (212°F) then at time (t-0) it is placed in water…

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Q: This answer is incorrect. Can I get a correct answer please?

A: Here velocity u= 189 ft/sit makes angle 34o with horizontalTime taken to hit the point above h…

Q: Determine the magnitude Pof the vertical force required to lift the wheelbarrow free of the ground…

A: A magnitude is simply a measurement of distance or quantity. It describes the absolute or relative…

Q: Problem 4: A coal car of mass m, = 4274 kg is rolling down the tracks at a velocity of v; = 3.9 m/s…

A: Given, m1 = 4274 Kg v1 = 3.9 m/s m2 = 5503 Kg   (a) What is the momentum of the system in (kg.m)/s…

Q: (5) A 15.0A current produces a B field at the center of an arc of angle n/4 radians and radius…

A: (5) Given Current (I) = 15.0 A Radius (r)  = 0.500 m Angle θ  = π4 radians

Q: A person kicks a ball from point A on the ground with initial velocity of 10 m/s at 30 deg up from…

A: Given: Initial velocity is 10 m/s Horizontal distance is 30o

Q: Question 12: Use Boolean algebra to simplify the following expression, then draw a logic gate…

A: The Boolean algebra is different from normal algebra. We deal with 2 states here that are 0 and 1.…

Q: Stooge problem hints Summary of info: m= 15 g; k=22 N/cm; x=3 cm; Ay=-1.4 m; 0=-19° 1. Calculate…

A: Given, m=15 gk=22 N/cmθ=190

Q: A rod of length 2 m is fully insulated along its sides. The temperature at x is initially ITX 100…

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Q: 4. List 2 potential sources of errors in this experiment.

A: In this experiment many students are climbing up on the stairs and we are going to determine Power…

Q: 3. Using the component method, find the magnitude and direction of the resultant of a 5-N force that…

A: Answer the following question is

Q: Problem 4: Two blocks connected by a string are pulled across a horizontal surface by a force…

A: Given :                                               Mass of block-1, m1 = 1.5 kg…

Q: mass 5. A billiard ball moving with a speed 5m/fee collides head-on with a second ball of equal at…

A: Given Mass of cart-1 = m1 = 0.350 kg Mass of cart-2 = m2 = 0.50 kg Initial velocity of cart-1 = u1 =…

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.