The mechanical advantage of a simple machine is always eq

Q: You’re using a system of multiple simple machines to move a 1500 N load up a height of 2 meters. You…

A: Mechanical advantage The mechanical advantage of a ramp or an inclined plane is the defined by the…

Q: A machine with velocity ratio 5 requires 1000j of work to raise a load of 500N through a vertical…

A: Given : Velocity Ratio (v.r) = 5 Input Work (Wi) = 1000 J Force (F) = 500 N Vertical distance (d) =…

Q: Do devices with efficiencies of less than one violate the law of conservation of energy? Explain

A: Given: devices having efficiency less than 1

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

A:

Q: Objective: To understand the basic ideas of two forms of Mechanical energy: Potential and Kinetic…

A: To complete the table based on data.

Q: A motor operates at its rated load of 10hp for 8hrs a day. Its efficiency is 87%. What is the daily…

A: Given: The rated power of the motor is 10 hp. The duration of the run of the motor is 8 hrs. The…

Q: used to lift a load of 1000N. Calculate A machine whose efficiency is 75% is a the effort put in to…

A: Ans:- Machine:- A machine is a device by means of which work can be performed easily or in a…

Q: In the figure shown below, the value of co- efficient of dynamic friction between 500 N block and…

A: Draw the free-body diagram of the 100 N block.

Q: Suppose you used an ideal pulley of the type shown in image (e) in the figure below to support a car…

A:

Q: maximum power transfer takes place at an efficiency Select one: a. 25 % b. 50 % c. 75 % d. 100 %

A: The efficiency is defined as the ratio of the out put power to the in put power.

Q: Craig is an accident reconstructionist. He arrives at an accident where there are 4 skid marks of…

A: If there are multiple skid marks, measure all of them and take the average.

Q: How is the mechanical advantage related to the velocity ratio for (i) an ideal machine (ii) a…

A: The relation between mechanical advantage and velocity ratio is

Q: Power of the machine if it is 100% efficient.

A: Given data; Load raises by machine,F= 720 NHeight raises the load,h=12 m time,t= 5 secCalculate;…

Q: height grou ion along the total path). mechanical energy at point A

A: The mechanical  energy of the system at any point remains same. Mechanical energy is the sum of…

Q: The SI unit of both energy and work are similar. Select one: O True False

A:

Q: Match the type of machine to the formula for the IMA   Ratio of the teeth  Number of "support…

A: Given: Match the type of machine to the formula for the IMA   Ratio of the teeth  Number of…

Q: A hoist is to raise a 1135 kg of mine cage at the rate of 4.6 m/s. Mechanical efficiency of the…

A:

Q: (b) Velocity ratio of a machine is 72. The law of machine is P=1/48 W+30 N. Find the maximum MA,…

A: Given data The velocity ratio is VR = 72  The law of machine is P = 1/48 W+30

Q: An inefficient machine is said to “waste energy.” Does this mean that energy is actually lost?…

A: Energy conservation law is a universal law. According to this, energy can be neither created nor…

Q: Kinetic energy could increase or decrease based on the direction of the force True False

A: Yes the kinetic energy could increase or decrease based on the direction of the force. As if the…

Q: A lever has the following dimensions: Resistive force distance: 15 cm Effort force distance: 85 cm…

A:

Q: What do you mean by an ideal machine, how does it differ from a practical machine?

A: Ideal machines are hypothetical machines which does not exist in real and they can have 100%…

Q: Shows an example of a Rube Goldberg machine. Identify two types of simple machines that are included…

A: A simple machine is a mechanical device that changes the direction or magnitude of a force. They can…

Q: For the lever shown in the figure below find the effort that can lift the load. (Use: g = 9.8 m/s)…

A: Torque is defined as Γ→=r→×F→=rFsinθ Here r is the distance, F is force and θ is the angle between r…

Q: 1. Assume that you are riding a bicycle. An applied force of 701 N downward is applied as you push…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 5. With a wheel and axle, a force of 80 N applied to the rim of the new wheel can lift a load of 640…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: You can use a stone under a plank of wood to lift a heavy rock. i. State the type of machine that…

A:

Q: The law of conservation of energy is not applicable to mechanical systems as they require energy…

A: To find the statement is true or false

Q: the force exerted by a machine is called the ____ A. effort force B. resistance force C.…

A: Please see the answer in step 2.

Q: Match the definition from the 1sT column to the best term in the 2nd column. A) AMA B) biomechanical…

A: Given : Asked to match the following between column 1 and column 2

Q: What type of simple machine is an axe?   A) Lever B) Wedge C) Both A & B D) The screw

A: 1. A lever is a simple machine which consists of a rigid rod pivoted at a fulcrum. 2. Wedge is a…

Q: A machine raises a load of 440 N through a height of 14 m in 2 sec. Calculate: 1. Energy spent by…

A:

Q: In the figure below, the force component Fcos e reaches a maximum at s = 0.306 m. Find the…

A: Are of one block, a=9×2.78xx10-2 J Area under the force-displacement graph is called work done.…

Q: With a wheel and axle, a force of 80 N applied to the rim of the wheel can lift a load of 640 N. The…

A: Actual mechanical advantage of a machine is AMA=FwFi=640 N80 N=8

Q: An electric motor with a 2 hp output drives a machine with an efficiency of 45%. What is the energy…

A:

Q: A person opens a door by applying a force of 12 N perpendicular to the door at a distance of 0.80 m…

A: Given data The force applied by the person on the door is F = 12 N. The distance of the door from…

Q: What is the formula to calculate the mechanical advantage of a lever?

A: Mechanical advantage  Its ratio of the input force to the output force. MA = input arm distance…

Q: Using an inclined plane with an IMA of 6, you push a box up the ramp and measure the amount of force…

A: Answer :   Efficiency (€) define as ratio of experimental determined advantage (AMA) to ideal…

Q: When does a machine act as (a) a force multiplier , (b) a speed multiplier .

A: Machine acts as a force multiplier when

Q: Home Work : Give the miller indices for the following Shapes : E B IB 1 2 G Ή C D C D C

A:

Q: Examine screw jack and lead screw function to store mechanical energy in their operation. Moreover,…

A: (a) Efficiency of lead Screw e= 34 %  (a) Efficiency of Screw Jack = 62.65%     (b) Efficiency of…

Q: Describe in a sentence where the total mechanical energy (ME) becomes zero in a sentence

A: Total mechanical energy of an object is the sum of its potential energy and kinetic energy.…

Q: Negative work means * a. energy is transferred from the object b. energy is transferred to the…

A: Work refers to the measure of transformation of energy that happens when the object is in a state of…

Q: A tire moving with initial velocity moves up an incline and begins to slow down but hasn't stopped…

A: We know that the friction acts in the direction opposite to the motion of the object.

Q: The "efficiency" of a machine is found by determining how much of the energy you started with will…

A: The efficiency of any machine is the measure of useful work done from the total amount of energy…

Q: 1. An inclined plane as shown in figure 1 is used to raise an object of mass 30 kg. If the plane is…

A: Mass of the object m=30 kg Angle of inclination θ=50 Coefficient of friction μ=0.20  Ideal…

Q: The efficiency of a lever machine is 81%. What is the work done on the machine if the machine…

A: Efficiency= 81% = 0.81,  Output work = 78 J Input work = ?