0.54 kg object travels from point A to point B. If the speed of the object at point A is 7.0 m/s and the kinetic energy at point B is 8.0 J, determine the following.   a. the kinetic energy (in J) of the object at point A

Q: Arollercoaster cart leaves point A at a speed of 4 m/s, passes through point B on the ground, and…

A:

Q: 9. Elena and her classmates were attempting to measure the maximum power they can generate by…

A: mass of Elena = 55 kg height = 4 m time = 3.5 seconds a) Work done by Elena = mgh = 55 * 9.8 * 4  =…

Q: The net work done on an object may be determined by a combination of kinematics and dynamics or by…

A: mass =14.5 g= 14.5 ×103 kg  length = 73.5 cm= 0.735m speed = 825 m/s.

Q: A 71.1 kg runner has a speed of 3.30 m/s at one instant during a long-distance event. (a)What is the…

A: The mass of the runner, m=71.1 kg   The speed of the runner, v1=3.30 m/s

Q: A sled and rider with combined mass of 85 kg are perched at the top of a hill. The top of this hill…

A:

Q: A 900 kg roller coaster car starts from rest at point A, rolls down the track, goes around a loop…

A:

Q: eric, a professional rooftop futbol player, kicked a 0.450 [kg] ball off a rooftop that is 81.0 [m]…

A: (A) Let us represent Jeric by J1 and Joshua by J2. Let the point of kicking of ball by J1 be the…

Q: (a) Define kinetic energy and gravitational potential energy. What is the Sl unit for energy? (b) A…

A: Kinetic energy= (1/2) mv2 Gravitation potential energy= mgh where m = mass v = speed h = height

Q: A 67.1 kg runner has a speed of 5.30 m/s at one instant during a long-distance event. a.) What is…

A: (a) Calculate the runner's kinetic energy at this instant. KE=12×Mass of runnerm×Speed of the…

Q: 2. A 900 kg roller coaster car starts from rest at point A, rolls down the track, goes around a loop…

A: The gravitational potential energy of an object is the energy possessed by it by virtue of its…

Q: 4. A force with magnitude F = 10 N with a fixed orientation is applied on a particle. The particle…

A: (d) The work done by the force on the particle is, W=Fdcosθ

Q: e roof, descends another vertical 7.0-meter ladder, and returns to his starting location on the…

A: GivenMass of carpenter, m=75 kgHeight of ladder, h=7 mDistance travelled on roof, d=12 m

Q: There is a 100 kg box that starts at rest. a person pushes that box over the course of 18 meters…

A: Given mass of box m = 100 kg initial speed u = 0 m/s final speed v = 10 m/s displacement x = 18 m…

Q: 1. A 550-kg roller coaster car starts from rest at 50 meter above the ground. Calculate the change…

A: Law of conservation of energy states that energy can neither be created nor be destroyed. It only…

Q: Someone drops a 50 − g pebble off of a docked cruise ship, 70.0 m from the water line. A person on a…

A:

Q: A 0.200-kg particle has a speed of 1.50 m/s at point O and kinetic energy of 7.10 J at point ®. (a)…

A:

Q: A 1.50-kg book is sliding along a rough horizontal surface. At point A it is moving at 3.21 m/s, and…

A:

Q: A roller-coaster car has a potential energy of 750 kJ and a kinetic energy of 150 kJ at point A in…

A:

Q: Ten days after it was launched toward Mars in December 1998, the Mars Climate Orbiter spacecraft…

A: mass of orbiter (m) = 629 kg distance (d) = 2.89×106 km speed (u) = 1.20×104 kmhr= 12000 ×518 ms=…

Q: A 1100 kg roller coaster car starts at point A, then travels 155 ft at 40.0° below the horizontal to…

A: Given, mass m= 1100kg

Q: 2. You throw a 3 kg ball upwards: it goes up, turns around, and falls back down. At some point…

A:

Q: In compressing the spring in a toy dart gun, 0.5J of work is done. WHen the gun is fired, the spring…

A: Given data: Work done by the spring (WS) = 0.5 J Mass of the dart (m) = 0.02 kg Need to determine…

Q: A roller-coaster at its highest point is 100m high. The car rests at this point, and has a mass of…

A:

Q: Someone drops a 70 - g pebble off of a docked cruise ship, 50.0 m from the water line. A person on a…

A: Given: The mass of the pebble is 70 g. The initial height is 50.0 m. The final height is 5.0 m.

Q: A 67.1 kg runner has a speed of 5.30 m/s at one instant during a long-distance event. (a) What is…

A: Kinetic energy of an object with mass m moving with speed v is given as:          K.E=12mv2 Work…

Q: A 56.0-kg runner has a speed of 4.10 m/s at one instant during a long-distance event. (a) What is…

A: Mass of runner m = 56 Kg Speed of runner v = 4.10 m/s a) KE of runner = ?  b) KEf/KEi = ?

Q: A set of stadium stairs consist of 90, 20 cm high steps. A 70 kg runner is training by traversing up…

A: As per bartleby guideline for more than one subparts asked only first three are to be answered…

Q: An object is acted on by the force shown in the figure(Figure 1). What is the final position of the…

A:

Q: 1. A 66.1 kg runner has a speed of 4.70 m/s at one instant during a long-distance event. (a)What is…

A: The given data are: m=66.1 kgu=4.7 m/s Here, m is the mass and u is the initial speed.

Q: A 3.2 kg ball that is moving straight upward has 17 J of kinetic energy and its total mechanical…

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

Q: A 0.59-kg particle has a speed of 5.0 m/s at point A and kinetic energy of 8.5 J at point B. (a)…

A: Given Data:- The mass of the particle is m = 0.59 kg. The speed of the particle at point A is vA =…

Q: Justin Thyme is traveling down Lake Avenue at 32.8 m/s in his 1510-kg 1992 Camaro. He spots a police…

A: Given: mass,m = 1510 kg  u = 32.8 m/s v =  20.1 m/s

Q: A mass is attached to the bottom of a vertical spring. Thiscauses the spring to stretch and the mass…

A: When a mass is attached to the bottom of the vertical spring, explain; (a) What happens to the…

Q: Approximately 5.5* 106 kg of water falls 50 m over Niagara Falls each second. (a) What is the…

A: Given: Now, (a) What is the decrease in the gravitational potential energy of the water–Earth…

Q: An automobile with a mass of 1200 kg travels at a speed of 90 km/h. a) What is its kinetic energy?…

A: Given data: Mass (m) = 1200 kg Speed (v) = 90 km/h Required: Kinetic energy (KE) and net work…

Q: A 1.50-kg book is sliding along a rough horizontal surface. At point A it is moving at 3.21 m/s, and…

A:

Q: The Kingda Ka is the tallest rollercoaster, standing at an astounding 456 meters! Wow! Suppose you…

A:

Q: In compressing the spring in a toy dart gun, 0.9 J of work is done. When the gun is fired, the…

A: According to the conservation of energy, the potential energy stored in the spring is equal to the…

Q: A 4.0-kg battery operated toy car has a speed of 7.5 m/s at point C and kinetic energy of 205 J at…

A: Given data: Mass (m) = 4.0 kg At point C, Speed (v) = 7.5 m/s At point D, Kinetic energy = 205 J…

Q: I Review In a hydroelectric dam, water falls 28.0 m and then spins a turbine to generate…

A: According to the guidelines we can answer only the 1st question.

Q: Jeff lifts a 6000-g metal ball from the ground to a height of 35 inches close to his body. What is…

A: Given: mass of ball m = 6000 g = 6 kg height h = 35 inch = 35*0.0254 m = 0.889 m

Q: Alissa dropped a ball from a height of 2000 mm. Find out (a) how long it will take to hit the ground…

A:

Q: A sled of 150 kg mass moves along a smooth horizontal surface at 7 m/S The sled encounters a rough…

A: It is given that, m=150 kgu=7 m/sF=-90 Ns=15 m

Q: From the top of a cliff 80 meters high, a ball of mass 0.4 kilogram is launched horizontally with a…

A: Force brings about motion and changes in it. This force produce acceleration and hence the changes…

Q: A 1 000-kg roller coaster car is initially at the top of a rise, at point Ⓐ. It then moves 135 ft,…

A: Given data: Mass of the coaster car is, m = 1000 kg The initial position of the car is at point A YA…

Q: Sandra is riding a water slide at her favorite water park. At the top of the slide, she has 5,000 J…

A: Given that, Sandra is riding a water slide at her favorite water park. At the top of the slide, she…

Q: A 65.0-kg runner has a speed of 5.20 m/s at one instant during a long-distance event. (a) What is…

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.