I need help with 3 and 4 only, Thank You...
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 pair of knife has its blades 15cm long, while its handles are 7.5 cm long. Calculate its…
A: Given: Load arm = 7.5 cm Effort arm = 15 cm. Solution: Mechanical advantage of a lever is the ratio…
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: Q2: The boat in Fig.2 is traveling at 40km/h. The rope to tow the parasail is 150m long. At the…
A: Given: Initial velocity of boat is 40 km/h Length of the rope to parasail is 150 meters At t=0…
Q: A weight lifter raises a 963 N weight a vertical distance of 1.87 m. Compute the work done by the…
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: a pump can discharge about 181 liters of water in one day. This work done by the pump is equal to…
A: Given data: The amount of water pumped per day, V=181 L. The height of the person for which the…
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 solid cone with height 9 m and base with radius 2.7 m is built using a lightweight material whose…
A:
Q: To bring a very big ship to a stop, its engines are typically cut off about 25 kms from port. Why?
A: A very big ship has an enormous large amount of mass , due to this its momentum will be very…
Q: Calculate the Work = F x d done by gravity that pushes the car down the ramp. Which d (distance) do…
A: Analyze the following figure. The component of the gravitational force that is pushing the car down…
Q: (a) Calculate the work done by a 5.6 N force pushing a 400. g sandwich across a table 0.75 m wide.…
A:
Q: I performed a lab using a toy car to go down a ramp that was positioned at different heights. For…
A: The work done by the force of gravity on car is calculated by the following equation. Here, m is…
Q: A 2-kg block of wood is pushed by horizontal force of 10 N to a distance of 3 m. The work done…
A: Given: Mass of block m= 2 Kg Force applied F= 10N Distance d= 3m
Q: A vehicle of 50 quintal climbs up a hill of 10 m. The potential energy gained by it is (take g = 10…
A: Calculating the potential energy by formula P = mgh
Q: The rate of doing work is known as
A: In physics, the rate of doing work is known as Power. It is equivalent to an amount of energy…
Q: Find the height of box of 10 kg should to be raised to achi potential energy of 250 J. Take g=10…
A: GivenMass of box, m=10 kgPotential energy, PE=250 Jg=10 m/s2
Q: Compute the work (in joules) required to compress a spring 3 cm more when it is already compressed 5…
A: the work required is calculated as W=kx22
Q: On a table rest 6 books of mass 0.27 kg and thickness 3.8 cm. How much work does it take to stack…
A: Number of books = 6Mass of each book = 0.27 kg Thickness of each book = 3.8 cm = 0.038 m
Q: Calculate the amount of work done in raising a block of mass 5 kg through a height of 40 cm.
A:
Q: An 26 g rifle bullet traveling at 370 m/s buries itself in a 4.8 kg pendulum hanging on a 2.2 m long…
A:
Q: Why can't vectors be added algebrically?
A: Vector has both magnitude and direction.
Q: 3.10. A van of unladen mass tonne has a minimum braking time of 2.0 s in coming to rest from 48 km…
A:
Q: A pair of bullocks exerts a force of 160 N on a plough . The field being ploughed is 18 m long . How…
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Q: How much net work must be done to accelerate a 1000 kg 20 m / s to 30 m / s?
A: According to the work energy theorem, the work done must be equal to the change in kinetic energy.…
Q: Why should the angle of swing be small few degrees), or, what would happen if the angle were large?
A: For oscillation of a bob hanging from a thread from a fixed point as shown in diagram below we have.
Q: Why did you need to climb the stairs with a constant speed ?
A: Step1 - Understanding some basic concepts of physics that will be useful in this problem.…
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: A force of 50 N streches a certain spring by 20 cm. The spring constant is
A: Given data : Force that caused the stretching of spring, F = 50 N…
Q: Calculate the work performed by a horse pulling a wagon forward with 150 N of force, across a bridge…
A: Force applied by the horse (F) = 150 N Length of bridge (L) = 50 m Mass of horse (M) = 50 kg
Q: The vector product of two vectors has maximum value, if the angle between them is 90º Select one:…
A: Suppose one vector is A→ and another vector is B→ The vector product of two vectors is calculated…
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:
I need help with 3 and 4 only, Thank You...
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