How fast will a cart be moving if a force of 200 N is applied to a 50 kg cart for 10 sec?
Answers
Acceleration = (force) / (mass)
If there is no friction . . .
Acceleration = (200N) / (50 kg) = 4m/s²
Change in speed = (acceleration) x (time) = (4 m/s²) x (10 sec) = 40 m/s
Final speed = (speed of the cart before the force began) + (40 m/s more)
(That's about 89 mph faster than the cart was moving before the force started.)
Initial velocity (vi): 0 m/s
Final velocity (vf): ?
Acceleration (a): ?
Force (F): 200 N
Mass (m): 50 kg
Time (t): 10 s
F= ma
200 N= (50kg)(a)
a= +4 m/s^2
a= (vf-vi)/t
+4 m/s^2= (vf - 0m/s)/10s
vf= 40 m/s
Answer: the cart will be moving 40 m/s.
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Convert the temperatures -30c 10c and 50c to Kelvin and Fahrenheit
What kind of levers are your arms and legs
Answers
Answer:
The higher the better. Inside the atmosphere since sound cant travel without a atmosphere
Explanation:
Answer:
higher evaluations = faster sound travel
Answers
but to answer your question, it all depends on the person. some people are naturally good at walking in heels and others could have trouble wearing them for too long, or walking normally.
B.) the universe may continue to expand
C.) stars could burn out , causing the universe to become dark and cold
D.) gravity could pull galaxies back together causing a reverse of the Big Bang
Answers
Answer:
B.) the universe may continue to expand
Explanation:
The steady state theory which states that the universe was, is and will be the same, has been discredited by two physicists who found the leftover energy from the big bang.
If you are listening to FM radio, you might have heard some static noise while changing stations, that noise is from the leftover energy from the big bang. This energy is called the dark energy.
The dark energy tries to rip everything apart while gravity tries to hold everything together.
It was observed that the dark energy is stronger than gravity.
The distance between the galaxies is increasing. This proves that the dark energy successfully defeated the gravity and expanted two massive objects in the universe.
Because of this dark energy the universe will continue to expand.
Note: Dark energy is also increasing the distance between protons in atomic nucleus in every atom in our body too. Chilly right?
the answer is B! it would continue to expand.....just took the test XD
No link answers please
Answers
Boyle’s Law states that, when temperature is held constant, the pressure and volume of a gas are inversely proportional.
What is meant by gas laws ?
Gas laws are defined as the laws that govern the properties of gases by determining the relationships between the pressure, volume and temperature of the gases.
Here,
Boyle's law is the gas law that governs the relationship between the pressure and volume of gases.
Boyle's law states that, for an ideal gas at a unit mass, the pressure of the gas is inversely proportional to the volume of the gas, at constant temperature.
P 1/V
PV = a constant
When the temperature of the gas is held constant.
Hence,
Boyle’s Law states that, when temperature is held constant, the pressure and volume of a gas are inversely proportional.
To learn more about gas laws, click:
#SPJ3
Answer:
When temperature is held constant, the pressure and volume of a gas are not proportional.
Explanation:
That is Boyle's Law
Answers
Elastic Fibers : - Purpose : Allow organs like arteries and lungs to recoil
Reticular Fiber : - Purpose : Form a scaffolding for other cells
Hope this helps ! <3 :)
Answers
Answer:
- creation of mid-ocean ridges
-creation of new mountains
-formation of earthquakes
-formation of volcanoes
Convergent boundary plate tectonic involves collisions between oceanic and continental plates. The thinner and less denser oceanic plate overriden by the thicker and more denser continental plate. The oceanic plate is forced down the mantle, this event is known as subduction. The magma present in the mantle causes melting of subduction plates. The magma enters inside these plates through pores. This magma plate becomes bouyant and moves upwards. The molten magma causes volcanic eruptions along with earthquakes. If the magma solidifies in the subduction zone it creates mid ocean ridges. The mountains are formed near the continents when the magma after volcanic eruption gets cooled and solidified.
All the events are associated with convergent boundaries. Creation of mid-ocean ridges, Creation of new mountains, and formation of earthquakes.
What are convergent boundaries?
A convergent boundary occurs when two or more lithospheric plates clash on Earth. Subduction is the process through which one plate moves beneath the other.
The events are associated with convergent boundaries are;
1 . Creation of mid-ocean ridges
2. Creation of new mountains
3. Formation of earthquakes
4. Formation of volcanoes
Collisions between oceanic and continental plates are involved in convergent boundary plate tectonics. The oceanic plate, which is thinner and less dense, is pushed aside by the continental plate,
Which is thicker and denser. Subduction occurs when an oceanic plate is driven down into the mantle. The melting of subduction plates is caused by magma in the mantle.
The magma seeps into the pores of these plates. This magma plate rises as it gets buoyant. Volcanic eruptions and earthquakes are both caused by molten magma.
Mid-ocean ridges form as magma solidifies in the subduction zone. Mountains are generated near continents as lava cools and solidifies following a volcanic eruption.
To learn more about the convergent boundaries refer to the link;'