A 5.0 kg object is moving at 4 m/s? By what factor does its kinetic energy change if its mass is halved?

Q: Electrostatic compounds were used for the technique of polluted air containing particles that…

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Q: . An electric water heater requires 1100 W of power. Electricity costs 8 cents per kilowatt hour.…

A: Given Power of an electric heater = P = 1100 W = 1.1 kW Cost of electricity = 8 cents/kWh We have to…

Q: A potential difference will be induced in the wire if it is moved (1) toward the top of the page (2)…

A: In the given question, The straight wire is rest initially in a region of the uniform magnetic…

Q: You set up a 20 cm tall ramp on a 75 cm tall table. The ramp is inclined at 30° to the horizontal.…

A: in this question  we use free body diagram of m1 block and get equation then projactile motion on…

Q: An object is in SHM, having a period of 0.4 s, and an amplitude of 0.64 m. In the time initial, the…

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Q: The proper representation of the force of a flexible cable, belt, chain, or rope if the weight of…

A: Answer : Option (2) i.e. A force along the cable, belt, Chain or rope in tension.

Q: Calculate the change in momentum of a 0.5 kg ball that strikes the floor at 15 m/s and bounces back…

A: Given, mass of the ball, m = 0.5 kg speed of the ball (towards the floor), u = 15 m/s speed after…

Q: What is an electromagnet? Name two factors on which the strength of the magnetic field of an…

A: Given An electromagnet We have to define it and factors on which the strength of magnetic field…

Q: A runner runs around a circular track. He completes one lap at a time if t=497s at a constant speed…

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Q: You re out in space, on a rotating wheel-shaped space station of radius 679 m. You feel planted…

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Q: A 3-g bullet is fired horizontally into a 10-kg block of wood suspended by a rope from the ceiling.…

A: Given: The mass of the bullet is 3 g = 0.003 kg.…

Q: The retina is a light-sensitive .A True .B False

A: The Retina is the light-sensitive tissue at the back of the eye. It converts the light received into…

Q: What is the angular momentum of a 0.210 kg ball rotating on the end of a thin string in a circle of…

A: In the given question, Mass of the ball (m) = 0.21kg Radius of the circular path (r) = 1.3m Angular…

Q: F₂ = 600 N 45° F₁ = 800 N ·X F3 = 650 N 60°

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Q: In the expression for calculating the moment of a force about a point o, Mo = r x F, r is the vector…

A: M= r×F its cross product where r is any orbitary vector and F force. Here we know dot product…

Q: I drop a baseball from the top of a 18m window, somebody right below me throws their own baseball…

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Q: Determine the magnitude of the vector difference V' = V₂ -V₁ and the angle 0x which V' makes…

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Q: A 0.40 kg ball is launched at a speed of 2 m/s from a 12 m cliff. What was the total mechanical…

A: The kinetic energy of the ball is given by, KE = 1/2 mv^2  Where, m = 0.40 kg v = 2 m/s  KE = 0.5 x…

Q: You have two vectors. Vector A = 32 +43 and vector B = 62-53 of 3A + 2B? What is the y-component of…

A: X component of given vectors is Co-efficient of i^ of respective vector  Similarly, Y component of…

Q: Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to…

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Q: A light ray travels across the interface between two transparent materials as shown below. Note that…

A: When the light ray is not refracted, the incidence angle and the refracted angle will be the same.

Q: 2. Solve the force acting on the 8 KN block if it is in equilibrium. 38⁰ 58⁰ P

A: Given:  Weight of the block, mg=8kN The inclination of the slab with the horizontal, θ=38° At…

Q: Calculate the value of force applied if work done is 145 J and displacement is 4.3 m.

A: Given: Work done (W) = 145 J            Displacement (d) = 4.3 m   To Find: Force (F)

Q: A group of students uses an intense white light and a red filter to create bright fringes in a…

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Q: In the lift equation, what is the exponent of the velocity? Group of answer choices: A. 2 B. 1…

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Q: Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had…

A: Given Data t=6 hoursAi=100 mg To find Remaining amount atA24=?

Q: ou stand on a snowboard and hold a rope tied to a friends snowmobile. The rope makes a 12° angle…

A: Visualize the problem:

Q: During a steady right turn, a person exerts the forces shown on the steering wheel. Note that each…

A: Solution: The moment exerted about the steering column at O is given by:…

Q: 02. What push P up the incline is needed to move a 200-N block up the incline at constant speed if μ…

A: Draw the free-body diagram of the system.

Q: A cooling fan is turned off when it is running at 950 rev/min . It turns 1100 revolutions before it…

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Q: Q4/ An electric power plant operating on the Carnot cycle puts heat into a river with a water…

A: We have a electrical power plant operation on a Carnot cycle between temperatures T1 (temperature of…

Q: View Policies Current Attempt in Progress The force F has a magnitude of 640 N. Express F as a…

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Q: You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own…

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Q: What’s the history behind gravitational waves?

A: Gravitational waves are 'ripples' in space-time that result from some of the Universe's most…

Q: Two kids are playing on a seesaw on the school playground. The first kid (of mass 50 kg) sits 2…

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Q: I ship sails 10 kilometers 40 degrees north of east. It then turns 100 degrees to the west, giving…

A: Given  I ship sails 10 kilometers 40 degrees north of east. It then turns 100 degrees to the west,…

Q: While dusting a bookshelf at the local college's huge library, Jean accidentally knocks a book off…

A: Given Height from book dropped = h = 3.48 m Initial velocity = u = 0 m/s We have to calculate the…

Q: A coil consists of 120. circular loops of wire of radius 4.80 cm. A current of 0.490 A runs through…

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Q: A pump is used to lift 600 kg of water from a depth of 50 m in 20 sec. Take g= 10 ms-² a. Workdone…

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Q: For one data trial, you release a water balloon of mass 283 g from the top of a Stanley Hall onto…

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Q: How much work is being done the ball by the 10 n tension for The strinh during one complete…

A: Given : F = 10 N

Q: The system shown remains at rest. Each block weighs 60 N. The force of friction on the upper block…

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Q: extends from a building making a 48° angle with it.  A wire is supporting the beam, it is attached…

A: Given  A beam that has a mass of 75kg extends from a building making a 48° angle with it.  A wire is…

Q: Taking the density of air to be 1.29 kg/m³, what is the magnitude of the linear momentum of a cubic…

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Q: This time we have a non-rotating space station in the shape of a long thin uniform rod of mass 9.92…

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Q: You start out by driving 72 miles south in 3 hours and 13 minutes, and then you stop and park for a…

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Q: A skydiver weighing 178 lbf (including equipment) falls vertically downward from an altitude of 5000…

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Q: Topic: Charles' Law (10 pts) Given: Unknown: Formula: Solution: Final answer: Given: volume of 400…

A: Charles's law, states that the volume hold by a static amount of gas is corresponding proportional…

Q: A car drives around a circular track of diameter 161 m at a constant speed of 40.8 m/s. During the…

A: "Since you have asked multiple question, as per our guidelines we will solve the first question for…

Q: A person who weighs 660 N is riding a 76-N mountain bike. Suppose the entire weight of the rider…

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