17. A child decides to take her cat on a walk, but the cat does not cooperate. The child pulls on the 2.5 kg cat with force of 20 N in a direction that is 30 degrees above horizontal, and the cat resists being pulled forward with a horizontal force of 15 N. What is the acceleration of the cat? Your answer: O 0.9 m/s² O 2 m/s? D 13 m/s? D 17 m/s²

Q: Calculate the amount of work done if a 300 N object is lifted to a height of 2.5 m.

A: Given that Weight of object F = 300 N Height h = 2.5 m

Q: A small vegetable shop use the following electric appliances: (1) Two Air Conditioner of rating 1600…

A:

Q: Take a boat with a mass of 1.5 kg and lift it to a height of 2m. Compute the amount of work done.

A: Given:Mass,m=1.5 kgHeight,h=2mGravitational acceleration,g=9.81 m/s2Now,Work done,wW=Fdcosθ…

Q: Write a short note on work?

A: Work

Q: Why it is dangerous to stand near the railway track when a train is moving with high speed.

A: According to Bernaulli theorem P + (1/2)ρv2 + ρgh = constant  P is pressure v is velocity  ρ is…

Q: A weight lifter raises a 963 N weight a vertical distance of 1.87 m. Compute the work done by the…

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Q: How much work is needed to lift a 100 pound weight from 10 feet above ground to the top of a 50 foot…

A:

Q: which is more tiring, running or walking in the stairs? explain

A: Given : Which is more tiring running or walking in the stairs ?

Q: Define gravitational potential. Use the data below to show that its value at the Earth's surface is…

A: We know that The gravitational potential energy at the surface of the earth is U = MgR U/M = gR Here…

Q: A 5-kg object is pushed across a level surface with a force of 12 N for a distance of 6 m. How much…

A:

Q: If the energy stored in the spring when it was stretched .25 m was used to launch a .1kg ball…

A: Given, m=0.1 kg x=0.25 m energy stored in the spring =12kx2 Where k is the spring constant and x is…

Q: 1) Find FF u=0.5 2) Find FN and Fparallel Inclined plane 30° 20kg थे 80N

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Q: In a particular city, electrical energy costs $0.13 per kilowatt-hour. (Round your answers, in…

A:

Q: A body of mass 2 kg was dropped down from a height. If the KE attained by it is 400 J, find the…

A: Solution:-Given thatmass of body (m)=2 kgKE attained by the mass (KE)=400 J

Q: Write down The relationship between the total work done on an object and how the object’s speed…

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Q: You plan to shock your sibling with an electrostatic charge. To do this, you need to collect…

A: charge on your sibling (Q) = 8.2×10-6 C

Q: Calculate the amount of work done in raising a block of mass 5 kg through a height of 40 cm.

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Q: Blocks A and B have a masses of 200 kg and 240 kg , respectively. (Figure 2) The coefficient of…

A: Concept used: A vector can be split into horizontal and vertical components.  An object has to…

Q: A pair of bullocks exerts a force of 160 N on a plough . The field being ploughed is 18 m long . How…

A:

Q: How much work is done lifting a 35 pound object from the ground to the top of a 30 foot building if…

A:

Q: this is a 23 watt energy efficient light bulb (1bulb) which cost 6.00.the retail price of…

A: The energy consumed by a device is given by E = P×t, where P = the power of the device t = time

Q: Calculate the work done when a force of 15 N moves a body by 5 m in its direction.

A: Introduction :  In this question we are provided with value of  force and displacement . with these…

Q: Calculate the work done on a laptop with a mass of 2 kg when it is pushed 0.5 m with a force of 5 N.

A: Given: F = 5 Ns = 0.5 m To find: Work done(W)

Q: As you see in Fig.5, a block of mass m = 0.59 kg is supported by a light rope that wraps around a…

A:

Q: Suppose you could convert the 495 C in the cheeseburgeryou ate for lunch into mechanical energy with…

A: (a) The energy in cheeseburger is 495C. 495 C=495C×4.18 J1 C          =2069 J The expression for…

Q: An object of mass 2 kg falls from a height of 5 m under the influence of the force of Earth's…

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Q: How much work must a 1000kg truck must produce to drive a 178km highway if an average force of 464N…

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Q: ii) The angle between the vectors A = 4.0î + ĵ and B = −2.03 is: 0= =

A: We know that A.B= ABcosθ So we can derive θ from the above equation.

Q: Help me

A:

Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.