6. State the number of significant digits in each of the following measurements A 0.00003m B 64 01 fm C 80 001 m D.0.720 ug E. 2.40 x 10 ka

Q: Find the angle made by the vectors A and B given below A=(2,1,3). B=(3,-2,1).

A:

Q: If the magnitude of vector A is 5 units, the magnitude of vector B is 9 units, and the angle between…

A:

Q: 1] The angle between two vectors A and B, that are starting from the same point is 60°. If A = 7i-…

A:

Q: A 13,732-watt motor is used to lift a 5,908 kg aircraft to a height of 5 m. How much time (in…

A: Given : Power of motor (P) = 13732 Watt Mass of aircraft (m) = 5908 kg Height (h) = 5 m

Q: The work done by a force is zero when the force is to the displacement.

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: A casting of mass 150 kg is lifted 4 meters in 15 seconds by means of a crane. What is the power?

A: Given data The mass of the casting is given as m = 150 kg. The casting is lifted up to h = 4 m. The…

Q: A crate of mass 95.6 kg is pushed along a floor with a force of 30 N for a distance of 18.5 m.…

A:

Q: A box with a max of 20 KG at 5m is lifted to 20 m how much work was done? (Used=changed in PE

A: The distance moved by the box is h=20-5m=15m

Q: Use the definition of scalar product, a b =ab cosθ, and a b =ax bx + ay by to calculate the angle in…

A:

Q: A crate of mass 65 kg is pushed along a floor with a force of 40 N for a distance of 12.11 m.…

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

Q: A force of 80N [left] is applied to a desk making it slide 12 m [left] across the floor. How much…

A:

Q: A force of 50N is applied to the end of a lever, which is moved a certain distance. If the other end…

A: Step 1Force that is applied to the end of a lever isTo find the force exerted when the other end of…

Q: 82. Raising a table requires work. Raising it twice as high requires O a. half as much work O b. the…

A: Raising a table required work if raising it twice as high required. The correct option is  Twice the…

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

A:

Q: 0. is defined as the rate at which work is done

A: We know that power P=Wt Rate of doing work.

Q: Find the value of force applied if work done is 215 J and displacement is 8 m.

A: Given data : Work done=W Displacement=d   Required : Force

Q: A 39 kg child is jumping on a trampoline with a spring constant of 4700 N/m. On a particular jump,…

A: solution: Apply the conservation of energy for this motion. At the maximum height, the speed becomes…

Q: 20) Which of the following statements is true about the relationship between the scalar product of…

A:

Q: 28. How much work is done lifting a 3-m chain over the side of a building if the chain has mass…

A: Required : Work done in lifting a chain.

Q: 3) How much time does it take to do 9,560 Joules of work with 860 watts of power? -

A: solution is given by

Q: How much work is done by a machine to lift 750 kg of bricks to a height of 8.2 m?

A: Work done = gain in the potential energy by the bricks = m×g×h Here, m= 750 kg            g= 10 m/s2…

Q: Find the work performed when the given force F is applied to an object, whose resulting motion is…

A:

Q: 22) A compact car can climb a hill in 10 seconds. The top of the hill is 31 meters higher than the…

A: 22. The work needed to climb the hill is W=mgh=1027 kg9.8 m/s231 m=312002.6 J

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: how much work is done when a force of 816.0N is exerted while pushing a crate across a level floor…

A: GivenForce F = 816.0 NDistance d = 1.40 m

Q: 5. In each case, find the x- and y-components of vector : (a) A= 3.20 +6.50); (b) A 18.2ĵ-7.91î; =…

A:

Q: How much work should a 2000kg truck produce to drive a 278 km highway if an average force if 474N…

A: Given  Mass of truck (m) =2000 kg  Average force exerted by truck to overcome friction (F) = 474N…

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: The done work for man has power * (5.2 Watt) during (1 hours) is

A: Given: Power P=5.2 Watt Time  t=1 hours=1×60×60=3600 s

Q: Determine the scalar product of the following two vectors: A-3.01+4.01-2.0k B=2.01-6.0j-3.0k

A: Given data:  Two vectors A = 3.0i + 4.0j - 2.0k B = 2.0i - 6.0j - 3.0k Required:  The scalar product…