Ex. 69 : The total energy of a particle of mass 0.5 kg performing S.H.M. is 25 J. What is its speed when crossing the centre of the path ?

Q: A moving electron has a Kinetic Energy K1. After a net amount of work is done on it, the electron is…

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Q: 2. What is the mass of a girl if she was raised 2.00 m off the ground and has a potential energy of…

A: Given data: The potential energy is E=555 J. Distance from ground is h=2 m.

Q: Spacecraft combined with the Apollo spacecraft , the masses of the two Spacecraft 2.9*10 kg and…

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Q: An observer casts a laser pulse of frequency v= 105 Hz against a mirror, which is moving with a…

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Q: What is the Kinetic Energy of a particle on the Surface of the Sun (5000 deg K)?

A: Here given that the body temperatures of the Sun is 5000°K. We have to calculate the kinetic energy…

Q: An electron in a television tube is accelerated uniformly from rest to a speed of 8.6 × 107 m/s over…

A: From this information we will find the acceleration of the electron, which remains constant for any…

Q: 1. A point particle of mass m, moves along the uniformly rough track PQR as shown in the figure. The…

A: We are aware that a point particle with mass m travels down the question's uniformly rough track…

Q: Consider a particle of mass 2 kg. In first reference frame, the velocity of the particle is 4î m/s.…

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Q: A spaceship with a mass of 7500kg is motionless in space. The rocket turns on with a constant force…

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Q: How fast (in meters per second) must an iron ball with a mass of 42.2 g be traveling in order to…

A: Given,Mass of the iron ball, m = 42.2 gKinetic energy of the ball, KE = 12.49 J

Q: How fast (in meters per second) must an iron ball with a mass of 51.2 g be traveling in order to…

A: Given: The mass of the object is 51.2 g. The kinetic energy of the object is 16.15 J.

Q: In the figure below, a ball of mass m = 61 g is shot with speed v, = 26 m/s into a barrel of spring…

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Q: A uranium-238 nucleus undergoes a radioactive decay, 238 U 234Th + 4He. The masses are approximately…

A: A uranium-238 nucleus undergoes a radioactive decay, 238U --> 234Th + 4He The masses are…

Q: If a particle of mass 100 g initially had a speed of 100 cm/s, what would be its approximate kinetic…

A: In this question we have to find the kinetic energy at the end of 10 cm fall. Please give positive…

Q: How fast (in meters per second) must an iron ball with a mass of 66.7 g be traveling in order to…

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Q: One particle has mass m and a second particle has mass 2m. The second particle is moving with speed…

A: Given First particle mass         = m Second particle mass    = 2m Second particle speed  = v First…

Q: As shown in the figure below, two masses m, 5,50 kg and my which has a mass 60.0% that of my, are…

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Q: 6. A basketball whose mass is 0.640 kg falls from rest through a height of 5.40 m, and then bounces…

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Q: An object is dropped from a height of 12m. At what height will its kinetic energy and its potential…

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Q: A toy rocket launcher contains a spring with a spring constant of 35 N/m. a). How far must the…

A: As per our guidelines, we are supposed to answer only first three subparts in case of multiple…

Q: A ball has a kinetic energy of 28.9J. If the ball were moving twice as fast, how much kinetic…

A: The kinetic energy of the ball is The ball speed of the ball is made twice.

Q: The kinetic energy of a mass m moving from x = 0 to z = d is given by K(x) = Ko (2 – 2). Find the…

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Q: How much work is required to stop an electron (m=9.11×10−31kg)(m=9.11×10−31kg) which is moving with…

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Q: Suppose that a spacecraft of mass 6.9 x 104 kg at rest in space fires its rockets to achieve a speed…

A: Suppose that a spacecraft of mass 6.9 x 104 kg at rest in space fires its rockets to achieve a speed…