8. One radian equals approximately Your answer 9. If a 14 kg box is raised to a height of 4.0 m on Earth, what is its gravitational potential energy relative to the ground? Your answer

Q: The CN Tower in Toronto has a rotating restaurant in the center of it. Restaurant is 1,151 feet…

A: Given: (Note: This is a multiple type of question. So answer for first image is provided below.…

Q: A sphere rolls down a 20 deg incline starting from rest to a height of 50m. how fast will it be…

A: The sphere rolls down 20deg  The height h=50m

Q: Auniform hollow disk has two pieces of thin light wire wrapped around its outer rim and is supported…

A: In this question we have to find the speed of the center of the disk. Please give positive feedback…

Q: Explain why a centripetal force does not do work on a circularly moving object.

A:

Q: **76. mmh Take two quarters and lay them on a table. Press down on one quarter so it cannot move.…

A: From the figure it is clear that the dotted circle has a radius equal to the diameter of a quarter.…

Q: 6. Find the angular momentum of a thin 6.9-kg rod of length 7.5 m if it rotates about its midpoint…

A: As we know,  The angular momentum of a rod of mass m, (L) = m v r  where angular speed (ω) = v / r…

Q: How do I relate energy and time to find moment of inertia?

A: We know that rotational kinetic energy , E = 12Iω2 , where I is moment of inertia and ω is angular…

Q: An Earth satellite has its apogee at 2500 km above the surface of Earth and perigee at 500 km above…

A:

Q: Thruster Satellite Thruster A satellite in a circular orbit around Earth is initially not rotating…

A: Given that: The satellite is in circular orbit and not rotating initially.

Q: 2. A roller coaster car of mass, m, enters the bottom of a frictionless vertical loop of radius…

A: Given:

Q: A 33 1/3 rpm record on a turntable uniformly reaches its operating speed in 2.45s once the record…

A: In this question we are given that a 33 1/3 rpm record on a turn table uniformly reaches its…

Q: Long before iPods that hold thousands of songs and play them with superb audio quality, individual…

A:

Q: The car's mass is M = 0.6 kg and the radius of the hill is R= 0.4 m. The car's kinetic energy at the…

A:

Q: A mountain-bike has a mass of 12 kg approximately. Each wheel can be considered as a ring, each is…

A:

Q: Semi-trailer trucks have an odometer on one hub of a trailer wheel. The hub is weighted so that it…

A: Given:Diameter of wheel,d=1.15 mRadius,r=0.575 mNumber of rotation ,N=200,000Find kilometers should…

Q: Consider a 150g puck on a string moving in a 1m radius circle on an air hockey table (no friction)…

A: Solution:

Q: , how much work is done by the man against gravity in climbing to the top?

A: If the acted force is F and for the force displacement is dr then We know work ,…

Q: 9. A small objoct of maas m starts from rest at the position shown and slides along the frietionless…

A:

Q: (I) The Sun subtends an angle of about 0.5° to us on Earth,150 million km away. Estimate the radius…

A: Given:             An angle of on earth is about 0.5° and 150 million km away from Earth…

Q: Earth spins on its axis and also orbits around the Sun. For this problem use the following…

A:

Q: 8. A person spins a grindstone with a radius of 0.16 m along its edge, making the grindstone spin…

A: (8) The given data are: r=0.16 mW=402 J Here, r denotes the radius and W denotes the workdone.

Q: question 16 please

A: Given:

Q: The car's mass is M = 0.6 kg and the radius of the hill is R= 0.4 m. The car's kinetic energy at the…

A: We know that: The mass is M=0.6 kg The radius is R=0.4 m KE=1.3MgR Calculating the speed of the…

Q: A child of mass 20 kg swings from a 5.90 m long rope, see the figure below. Her tangential speed at…

A:

Q: 2.) A rotating wheel 8m in diameter is attached on top of a pole that is 8m high. A weight of 20kg…

A: When a body is in rotational motion, it has some angular velocity, whose magnitude is the linear…

Q: BB-8 is an intergalactic robot that is trying out for a new role in the rebellion. The main portion…

A: Given, Radius of the sphere (r)=0.5m Maximum angular acceleration=1.9rad/s² Mass(m)=4.6kg

Q: Read the question carefully and give me right solution according to the question.  A 1,200 kg car…

A:

Q: The puck in the figure below has a mass of 0.186 kg. Its original distance from the center of…

A: Given: mass of puck, m=0.186 kg Initial radius, ri = 40 cm Initial speed of rotation, v=85 cm/s…

Q: Which of the following is equivalent to one hertz?

A:

Q: Mars moves in an elliptical orbit around the sun, and the mass of Mars is much less than the mass of…

A: here we can use Kepler's orbital law  We know that potential energy between two planets can be found…

Q: 7. A motor at rest is turned on to 2500 rev/min in 26s. How many revolutions w last 26s? 127 300 476

A:

Q: A car rounds a freeway exit turn of radius 40m at constant speed of 20m/s. The turn goes 3/4 around…

A: Constant speed of car  = 20 m/s  Radius of circular track = 40 m

Q: A motorcyclist performs uniform circular motion on a globe of death with a radius of 4.00 m. It has…

A: Given, Radius of globe of death ,r = 4.0 m  Speed ,v = 10.9 m/s  Mass = 200 kg  g = 10.0 m/s2

Q: An exotic planet Vogsphere is known to have a mass that is 1/81 that of the Earth and a radius 0.25…

A: The escape velocity of earth, ve=2GMr the escape velocity of the exotic planet,…

Q: A 0.019 kg record with a radius of 11 cm rotates with an angular speed of 33 rpm.

A:

Q: A hollow sphere rolls without slipping down a ramp that is 3.5 m long. the ramp is inclined at an…

A:

Q: A light, rigid rod is 77.0 cm long. Its top end is pivoted on a frictionless, horizontal axle. The…

A: Length of rod (L) = 77 cm Radius of path = 77 cm H = 2R = 2×0.77 m = 1.54 m

Q: A kid's merry-go-round in a park is a thin 150 kg disk (I = ½ MR?) with a radius of 3 m mounted to…

A:

Q: lo completes one orbit about Jupiter in 1.77 days and the average Jupiter-lo distance is 4.22 × 10%…

A: We know angular speed (ω) = 2πPeriod (T)

Q: A thin, 90.0 g disk with a diameter of 6.00 cm rotates about an axis through its center with 0.240 J…

A:

Q: You've taken your neighbor's young child to the carnival to ride the rides. She wants to ride The…

A:

Q: Explain why a centripetal force doesnot do work on a circularly moving objects?

A: The centripetal force does not do work on a circularly moving object because the force is…

Q: A projectile is shot directly away from Earth's surface. Neglect the rotation of the Earth. What…

A:

Q: A race track is laid along an arc of a circle with radius 1950 feet.  The circular part of the track…

A:

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.