n object with a mass of 6-kg has a velocity of v=(-i+4j) m/s.  What is the kinetic energy of the object?  A) 27J  B) 73J  C) 12.4J  D) 51J  E) 88 J

Q: 7- The kinetic energy of a 20.0 N object is 5.00×10² J. What is the speed of this object?

A:

Q: If a 0.50 kg ball is moving at a speed of 12 m/s what is the kinetic energy of the ball? Equation is…

A:

Q: A 5.5 kg boulder rolling down a hill has kinetic energy of 250 J. How fast is it moving? 64 m/s 10…

A: Given that,                    mass of boulder rolling down (M) :-  5.5 kg…

Q: An automobile traveling at 25 km/hour has kinetic energy equal to 1 x 104J. What is the mass of the…

A:

Q: You give 90 J of kinetic energy to a 1 kg stone when you throw it. By how much do you increase its…

A: The energy gained by the stone = 90 Joules. Mass of the stone (m) = 1 kg.

Q: Calculate the kinetic energy of a 0.300 kg baseball thrown at a velocity of 34 m/s. 173 J 390 J 490…

A: Given data: Mass (m) = 0.300 kg Velocity (v) = 34 m/s Required: Kinetic energy (KE)

Q: Determine the kinetic energy of a 1200 kg automobile travelling at 20 km/hr. How many times as great…

A: (given)      Mass of an automobile = 1200 kg Velocity of an automobile = 20 km/hr…

Q: How much kinetic energy does a 2.5 kg toy car have if it is traveling at a constant velocity of 1.7…

A: Given that, Mass of the toy car is m=2.5 Kg  and  constant velocity is v=1.7 ms

Q: An applied force of 40.0 N lifts an object straight up a distance of 1.20 m. if the object has a…

A: Given , Applied Force (F) = 40 N Vertical displacement (s)  = 1.2 m Mass (m) = 2.5 kg In this case ,…

Q: 1. Determine from the expression for kinetic energy (KE = ½ mv2) the combination of units,…

A: Given that, Kinetic energy (KE = ½ mv²)  Here m is the mass And v is the velocity We know that the…

Q: A student pushes a textbook 1.0 m across the table.  She uses an applied force of 5.0 N against a…

A: Net work done is the sum of work done by the student and by the force due to kinetic friction.

Q: What is the velocity of a 4.8 x103 kg truck whose kinetic energy is 125 kJ? O 9.18 m/s O 6.29 m/s O…

A:

Q: A bullet of mass 20g is found to pass two points 30m apart in a time interval of 4s. Calculate the…

A: c

Q: If both mass and velocity of a ball are doubled, the kinetic energy is increased by a factor of: a.…

A:

Q: Assume two small balls ball A and ball B. If A has double mass and triple kinetic energy of ball B,…

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Q: The work done by the force

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Q: subcompact car with a mass of 1.60×103 kg and a loaded dump truck with a mass of 1.90×104 kg are…

A:

Q: The physical unit of kinetic energy is: - Kg-cm2/s2 - Gm/s2 -Gm-cm/s2. - None of the above

A:

Q: A 67 kg student traveling in a car with a constant velocity has a kinetic energy of 1.8 x 10^4 J…

A:

Q: An object of mass 1000 kg initially having a velocity of 20m/s accelerates to a final of 129 m/s.…

A: Given: mass of the object (m) = 1000 Kg            initial velocity (u) = 20 m/s            final…

Q: The kinetic energy of an 1900-kg truck is 7.2 × 105 J.  What is the speed of the truck

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Q: How high would you have to lift a 3400 kg car to give a potential energy of: 2.0 x 10^3 J 2.0 x…

A: Given: The mass of the car is 3400 kg. The potential energy values are 2.0 x 10^3 J 2.0 x 10^5 J 2.0…

Q: Two objects A and B have the same kinetic energy. Object A with massm is initially moving with speed…

A: Mass of A is m Mass of B is m/2 Speed of A is vi Suppose that speed of B is vB

Q: If you have a ball with a mass of 6.00kg, that has an initial velocity of vA=(2.00i + 5.00j)m/s and…

A:

Q: A person was trying to catch a ball with a horizontal velocity of 48 m/s. The mass of the ball was…

A: The objective of the question is to find the kinetic energy of the ball before it struck the…

Q: what height is an object that has a mass of 155 kg, if its potential energy is 9500 J? 5.33 m 6.25 m…

A:

Q: A force of 20 N moves an object in the direction of the force.  The work done when the object moves…

A: Given data:  Force (F) = 20 N Initial position = 2.0 m Final position = 4.0 m Required: The work…

Q: 16. A stationary hockey puck has a mass of 0.10 kg. A hockey player uses her stick to apply a 2.6 N…

A: 16

Q: An object with a mass of 22 kg moving with a velocity of 5 m/s possesses a kinetic energy of : A)…

A: The kinetic energy is given by  K = 0.5 mv2  where, m is the mass and v is the speed.

Q: 3. An object with a mass of 725kg sits 34m above the ground. What is its PE,?

A: Given data: mass of the object is, m = 725 kg The position of the object above the surface of the…

Q: A typical baseball has a mass of 0.145 kg. Some pitchers can throw a baseball with a speed of about…

A:

Q: What is the potential energy of an acorn falling out of a tree 20 meters above the ground that has a…

A: Given value--- height = 20 m. weight of acorn = 23.7 N. We have to find--- potential energy?

Q: The average force exerted

A:

Q: Determine the velocity of a pontoon boat with a kinetic energy of 314255314255 J and a mass of…

A:

Q: The kinetic energy of a body is 'K'. If one-fourth of its mass is removed and velocity is doubled,…

A: Given that:-The kinetic energy of a body is 'k'One-fourth of its mass is removed and velocity is…

Q: kinetic energy

A:

Q: A bear has 2200 J of kinetic energy while running 6 m/s towards a man. What is the bear's MASS? *

A: kinetic energy of bear K.E = 2200 J  velocity of bear v = 6m/s  mass of bear be 'm' kg

Q: A small spaceship whose mass is 2200 kg (including an astronaut) is drifting in outer space with…

A:

Q: 1500kg sport car is moving westbound at 20m/s on a level road when it collided with a 4000kg truck…

A: 1500kg sport car is moving westbound at 20m/s on a level road when it collided with a 4000kg truck…

Q: kinetic energy

A:

Q: An object has a kinetic energy of 89.96 J and a mass of 59.76 kg, how fast is the object moving? No…

A: Given : K = 89.96 J m = 59.76 kg

Q: Which of the following statements correctly describes the relationship between an objects kinetic…

A:

Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.