What 3 things can machines change?
What is the reaction force to you pulling on a rope?
The reaction force to you pulling on a rope is the tension force exerted by the rope in the opposite direction. This tension force is equal in magnitude and opposite in direction to the force you apply to the rope.
Does friction affects velocity ratio?
Friction can have an impact on velocity ratio by reducing the efficiency of a system. Friction can transfer energy into heat, causing a loss in velocity and making it more difficult to maintain a consistent velocity ratio. Reducing friction through lubrication or other means can help improve the velocity ratio.
Schools that are heated with a natural gas furnaces use a type of fuel that is classified as a?
non renewable fossil fuel
What is the effect if a bulb is broken in a parallel or series circuit?
parallel circuit: Providing that the breakage does not result in a short circuit the other bulbs will still light.
series circuit: If the breakage results in a short circuit through the bulb the other bulbs will light more brightly. If the breakage results in a breakage of the connection through the bulb then the other bulbs will not light.
What do you call waves in a rope?
Waves in a rope are often referred to as ripples. These ripples are created by disturbances along the length of the rope, causing a wave-like pattern to form.
How did the circular saw run when it didn't use electricity?
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The modern circular saw is a scaled down version of the large sawmill blade driven by belts, gears and pulleys powered by a water wheel, first used in England in the late 1700's. Small hand held circular saws were not practical or safe until small electric motors were invented well after 1900.
What is the tension of the rope in a tug-of-war?
It can be very great. In one sad incident in India years ago, a mass tug 'o war with two thousand men snapped a 2 inch nylon cable. The broken ends flew back like a giant whip, tearing off fingers and inflicting other injuries.
Every rope is rated in breaking strength and safe working load, which is typically10-15% of the breaking strength. (It depends on the rope material). In countries using the American System, this is expressed in pounds; in those on the Metric System, in either kilograms or newtons.
Galileo would have observed that both the burlap ball and the 2-pound rock would have hit the ground at the same time. This would have demonstrated that objects fall at the same rate regardless of their weight, disproving the prevailing belief at the time that heavier objects fall faster.
How do you calculate the dynamic breaking strength of a wire rope?
The dynamic breaking strength of a wire rope can be calculated by multiplying the static breaking strength of the wire rope by a safety factor suitable for the dynamic loading conditions. Typically, the safety factor for dynamic loading is higher than for static loading to account for the dynamic forces and vibrations that the wire rope may experience during operation.
How do the length and the height of a ramp affect the amount of force needed to raise a load?
The height and length give an inclination angle. If you assume a straight ramp, this angle is arctan(height/length). Beware: length is measured over ground, i.e. horizontally.
The force needed to raise a mass over such an ramp is sin(angle)*mass*gravitational_constant
Beware: friction neglected here, example: steel ball rolling up a extreme hard, flat surface.
The force of gravity acts vertically downwards on the object, and it is the component of this force down the slope that has to be overcome in order to raise the load, plus any frictional force opposing the movement. The applied force will be least if the force is directed parallel to the slope
A rope typically feels rough or coarse due to the material it's made from, such as hemp or nylon. It can feel sturdy and textured in your hands due to the fibers used in its construction. The thickness and weight of the rope can also affect how it feels to the touch.
What happens when a lodestone is hung freely from a rope?
When a lodestone is hung freely from a rope, it will align itself with the Earth's magnetic field and point north-south. This behavior is due to the lodestone's natural magnetic properties.
Can machines allow you to do less work over a longer distance?
Yes, machines can allow you to do less physical work over long distances by automating tasks that would otherwise require manual labor. For example, vehicles can help you travel long distances with minimal physical effort, while tools like lawn mowers or washing machines can reduce the amount of manual labor needed to maintain a home.
How do transverse waves produce on a rope?
Transverse waves on a rope are created when one end of the rope is moved up and down, causing a wave motion that propagates along the length of the rope. This motion causes the particles of the rope to oscillate perpendicular to the direction of the wave, creating crests and troughs as the wave travels.
Who does the fastest 5m rope climb?
The world record for the fastest 5m rope climb was set by Steven Tarapata who completed it in 4.52 seconds in 2017 at the World Police and Fire Games in Los Angeles.
Although the motions of a ship are complicated, for some purposes of analysis, and for short intervals of time, they may be modelled with some success as if they involved only a pendulum, which is quite regular motion. Please see the link.
Can you test the strength of a flywheel magnet with a screwdriver?
It is not recommended to test the strength of a flywheel magnet with a screwdriver as the force exerted by the magnet could cause the screwdriver to snap towards it, potentially causing injury. It's safer to use an appropriate tool or magnet gauge to measure the strength of the magnet.
How is the speed of the drill press determined?
The chuck spindle has a 4 tier pulley on top. The motor also has a 4 tier pulley set the opposite way. A belt between the 2 pulleys drives the spindle at different speeds depending on where it's placed by the operator.
How do you make a rope stay in a bottle?
To make a rope stay inside a bottle, you can tie a knot at one end of the rope that is larger than the bottle's opening, preventing it from slipping through. You can also use a cork or stopper to secure the rope inside the bottle. Another option is to melt the end of the rope slightly to form a bulb that is too large to pass through the opening.
What type of plant does a rope come from?
Ropes are typically made from natural materials like jute, sisal, hemp, or cotton, which are derived from plants. For example, jute ropes come from the jute plant, sisal ropes come from the sisal plant, hemp ropes come from the hemp plant, and cotton ropes come from the cotton plant.
What is one second theodolite?
A one-second theodolite is a surveying instrument that can measure angles with a precision of one second of arc. This level of precision is commonly used for high-accuracy surveying and engineering applications where precise angular measurements are required.
What is a pulling force in a rope called?
A pulling force in a rope is called tension. Tension is the force exerted by a rope when it is pulled taut by two opposing forces.
How do you find tension on the rope?
The tension on a rope can be calculated using Newton's second law, which states that the sum of the forces acting on an object is equal to the mass of the object multiplied by its acceleration. By setting up equations for forces in each direction, one can solve for the tension in the rope.
the laser is using directed light focused on a single point to increases the heat so its not so much cutting as doing a controlled melt through the object, where as the diamond tip cutting tools are using the diamonds to come into direct contact with the surface over and over it. basically the only issue at hand is your comparing completely different tools its like asking why an 8 point wood saw wont cut through a 4 ft section of 1/4" sheet metal (if you have enough saws and time you could) compared to a blow torch on the same stuff.