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olasank [31]
3 years ago
8

Okay please help me all my assignments are due tomorrow! I need to know 5 examples of all 6 simple machines that can be found in

a house! Please specify the machine for the items! Thank you!
Physics
1 answer:
iren [92.7K]3 years ago
3 0

Answer:

Inclined Plane – A ramp, for example a wheelchair ramp. Paired inclined planes make a pitched roof.

Wheel & Axle – On lawnmowers and wheelbarrow. Also, found in cabinet door glides and on appliances. Another common example – door knobs and even inside those locksets.

Lever – The bottle opener. Tools – the crowbar, and scissors or pliers. Double Levers – a door, a toilet seat, a broom.

Pulley – Old wood windows, some garage doors, workshop or garage lifting systems.

Wedge – The shim – used throughout the home in construction. For example, when installing doors, windows, cabinets, etc. Sometimes used to level furniture or chairs.

Screw – Like the wedge, above, well, you couldn’t build a house without screws. Certain types of plumbing valves. Plus, a jar lid is a popular example.

Now for deeper look at the simple machines found around our homes.

The hope this will be helpful.

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You push a cart with mass 15 kg forward, giving it an acceleration of 3 m/s2
NARA [144]

Answer:

45 N

Explanation:

F= ma (ie force is found by multiplying the mass of the object by its accerelation)

thus, F =  15 X 3 = 45 N

8 0
3 years ago
light of wavelength 587.5 nm illuminates a slit of width 0.75 mm. at what distance from the slit should a screen be placed if th
Liono4ka [1.6K]

1.085m

Explanation:

Using

a= lambda/sinစ

Sinစ= (587.5*10^-9) x 0.75*10^-3

= 0.000783

Sinစ=0.875*10^-3/d

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3 years ago
In this setup how can potential energy be converted into kinetic energy .
d1i1m1o1n [39]

Answer:

If force is applied to cause the motion of the body

Explanation:

In the setup given in this diagram, potential energy can be converted into kinetic energy by applying force on the cart or object to move it down the slope.

Potential energy is the energy due to the position of a body. The body has huge potential energy at its current position.

Kinetic energy is the energy due to the motion of a body.

As the body moves down the slope and its velocity increases, it gains massive kinetic energy.

Down the slope, the kinetic energy increases as the potential energy decreases.

At the bottom of the slope, the potential energy becomes zero and the kinetic energy is at its maximum.

7 0
3 years ago
A heat engine has a maximum possible efficiency of 0.780. If it operates between a deep lake with a constant temperature of-24.8
Volgvan

Answer : The temperature of the hot reservoir (in Kelvins) is 1128.18 K

Explanation :

Efficiency of carnot heat engine : It is the ratio of work done by the system to the system to the amount of heat transferred to the system at the higher temperature.

Formula used for efficiency of the heat engine.

\eta =1-\frac{T_c}{T_h}

where,

\eta = efficiency = 0.780

T_h = Temperature of hot reservoir = ?

T_c = Temperature of cold reservoir = -24.8^oC=273+(-24.8)=248.2K

Now put all the given values in the above expression, we get:

\eta =1-\frac{T_c}{T_h}

0.780=1-\frac{248.2K}{T_h}

T_h=1128.18K

Therefore, the temperature of the hot reservoir (in Kelvins) is 1128.18 K

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3 years ago
Which astronomer's laws of motion helped to explain the heliocentric model
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( Galileo )discovered evidence to support Copernicus' heliocentric theory when he observed four moons in orbit around Jupiter

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