The small piston in a hydraulic system has a cross-sectional area of 0.5 m2, and the large piston has an area of 3m3. What is the force exerted by the large piston if a force of 500 N is exerted on the small piston?
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If you notice any mistake in my english, please let me know, because my english level is still low.
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three places magnets are threatening toy cars as shown below then Jerry measures how far is car rolls when she launches it from the same starting point using the same stretched rubber band how will the force of the rubber band affect the cars
Beginning with earth, summarize the structure of the universe. Also Andromeda galaxy is located appromaxily 2.5 million light-years from earth. Why is the light that reaches earth 2.5 million years old. So many points look.
Your shopping cart has mass of 65 kg. In order of accelerate the shopping cart down an aisle at 0.3 m/sec^2, what force would you need to use or apply to the cart?
An optical fiber can make a light beam travel in a path that is curved or twisted? True or False
Constant acceleration.
Decreasing acceleration.
Increasing acceleration.
Moving backwards at constant speed.
Moving forward at constant speed.
Stationary.
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Answer:
AB: decreasing acceleration
BC: constant acceleration
CD: constant acceleration.
Explanation:
(1) Here is the plot of velocity and time.
There is no information of distance.
=> There are two options that will be eliminated.
Moving backwards at constant speed.
Moving forward at constant speed.
(2) Only for remaining options will be considered:
Constant acceleration.
Decreasing acceleration.
Increasing acceleration.
Stationary.
(3) The formula for calculating final velocity:
v_final = v_initial + acceleration x time
Let's see BC: (this is a segment straight line)
v_C = v_B + acceleration x time
v_C = v _B = 40 (km/h)
time > 0
=> acceleration a = 0 (km/h^2) => constant acceleration
Let's see CD: (this is also a segment straight line)
v_D = v_C + acceleration x time
v_D = 0 (km/h)
v_C = 40 (km/h)
time > 0
=> acceleration = -40/time (km/h^2) < 0 => constant (negative) acceleration
Let's see AB (a segment straight line + a right curve)
On the segment straight line:
Using the same way we considered CD,
the acceleration is constant (positive) acceleration
On the right curve (with direction from A to B), its slope started to decrease. This slope is the change of acceleration.
=> Generally on AB (considering both segment straight line and the right curve), the acceleration is decreasing acceleration
P.S: Take the derivative of v_final with respect to acceleration a, plot a as a function of time , then you will see what really happened ^^.
Hope this helps!
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A nitrogen atom contains 7 protons, 7 electrons and 7 neutrons.
What are Electrons, protons and Neutrons?
Electrons are defined as subatomic particles with a negative elementary electric charge that belong to the first generation of the lepton particle family, and are considered elementary particles because they have no known constituents or substructures.
A proton is defined as a stable subatomic particle, symbol p, H⁺, or ¹H⁺, having a positive electric charge of +1 e elementary charge, with a mass slightly less than that of a neutron and the mass of an electron is 1,836 times.
A neutron is defined as a subatomic particle found in the nucleus of every atom except simple hydrogen, where the particle derives its name from the fact that it has no electric charge as it is neutral. Neutrons are very dense. Atoms contains same number of protons, electrons and neutrons like in nitrogen.
Thus, a nitrogen atom contains 7 protons, 7 electrons and 7 neutrons.
Learn more about Electrons, here:
#SPJ2
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That depends on where you weigh it.
-- On Earth, it weighs 9.807 newtons (2.205 pounds).
-- On the moon, it weighs 1.623 newtons (5.84 ounces).
-- On Jupiter, it weighs 24.79 newtons (5.57 pounds).
BTW ... 1,000 grams of mass is called ' one kilogram '.
In order to solve for weight, one must first realize what weight is. Weight is simply the force that the earth (or any given celestial being the object resides on) is applying to the object, to keep it pulled down. So weight is force.
Newton's second law of motion states that Force is equal to mass times acceleration. Mass is 1,000 grams, but one must keep in mind that a Newton is a kilogram times meter per second^2, so we want to convert our mass to kilograms. 1,000 grams is equal to 1 kilogram. Now we have our mass.
Next is acceleration. As stated earlier, weight is the force that gravity applies on an object, so acceleration must then be the acceleration due to gravity, which we know is 9.8 meters per second^2. Now we just plug in numbers.
F=ma
F=(1 kg)(9.8 m/sec^2)
F=9.8 (kg x m)/sec^2
F=9.8 N
Hence the earth is applying 9.8 Newtons of force on the object due to gravity, so the object weighs 9.8 Newtons
Hope this helps :)
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Answer:
(a) Brightness if the bulb will reduce.
(b) The bulb will remain the same
(c) The brightness of the bulb will increase