Answer:
The value is [tex]P_2 = 40.54 \ psla[/tex]
Explanation:
From the question we are told that
The initial pressure is [tex]P_1 = 14\ psla[/tex]
The initial temperature is [tex]T_1 = 50 \ F = (50 - 32) * [\frac{5}{9} ] + 273 = 283 \ K[/tex]
The final temperature is [tex]T_2 = 320 \ F = (320 - 32) * [\frac{5}{9} ] + 273 =433 \ K[/tex]
Generally the equation for adiabatic process is mathematically represented as
[tex]PT^{\frac{\gamma}{1- \gamma} } = Constant[/tex]
=> [tex]P_1T_1^{\frac{\gamma}{1- \gamma} } = P_2T_2^{\frac{\gamma}{1- \gamma} }[/tex]
Generally for a monoatomic gas [tex]\gamma = \frac{5}{3}[/tex]
So
[tex]14 * 283^{\frac{\frac{5}{3} }{1- [\frac{5}{3} ]} } =P_2 * 433^{\frac{\frac{5}{3} }{1- [\frac{5}{3} ]} }[/tex]
=> [tex]14 * 283^{-2.5} =P_2 * 433^{-2.5}[/tex]
=> [tex]P_2 = 40.54 \ psla[/tex]
A physics student uses a spring loaded launcher to fire a 58 gram projectile horizontally. The projectile leaves the launcher at 6.0 m/s when the spring is compressed by 2.0 cm.
Answer:
no answer
Explanation:
the question does not sk what to find
1. A 65 kg student, starting from rest, slides down an 16.2 m high water slide. On the way down, friction does 5700 J of work on him. How fast is he going at the bottom of the slide
Answer:
11.94
Explanation:
Remark
Find the Potential Energy at the top.
Givens
m = 65 kg
h = 16.2 m
g = 9.81
PE = 65 * 9.81 * 16.2
PE = 10329.93
The tricky part is what do you do about Friction?
Formula
PE = Friction + KE
Solution
PE = 10329.93 Joules
Friction = 5700 Joules
Find the KE
10329.93 = 5700 + KE
KE = 10329.93 - 5700
KE = 4629.93
Find V from the KE formula
KE = 4629.93
m = 65
KE = 1/2 m v^2
KE = 1/2 65 v^2
4629.93 = 1/2 65 v^2
v^2 = 142.46
v = √142.46
v = 11.94
Pls answer , will mark brainliest!!
Answer:
75 N
Explanation:
f = uN
f = 1(75)
f = 75
Which of the following is transferred during the movement of a wave?
Answer:
a,b,c,d what are they
Explanation:
Answer:
matter medium particles
Explanation:
a p e x
Less massive objects are measured in........
- grams
-mL
-Kg
Answer:
kg
Explanation:
Two objects each with a mass of 5x10^15 kg have a gravitational
force of 3.4x10^15 N between them. How far apart are they?
Answer:
Distance, r = 700.31 m
Explanation:
Mass of two objects, [tex]m_1=m_2=5\times 10^{15}\ kg[/tex]
Force between the objects , [tex]F=3.4\times 10^{15}\ N[/tex]
We need to find the distance between the two objects. The force of gravitational between two objects is given by :
[tex]F=G\dfrac{m_1m_2}{r^2}\\\\r=\sqrt{\dfrac{Gm_1m_2}{F}} \\\\r=\sqrt{\dfrac{6.67\times 10^{-11}\times (5\times 10^{15})^2}{3.4\times 10^{15}}}\\\\=700.31\ m[/tex]
So, the distance between the objects is 700.31 m.
what would play-do be considered to be
Answer:
Not sure but I found this “Originally developed as a wallpaper cleaner, Play-Doh compound is now the #1 reusable modeling compound, with over 500 million cans produced each year,” the document states.
Explanation:
What type of electric current does a power plant generate for use in your home?
A.
direct
B.
alternating
C.
repeating
D.
straight
Technician a says that that both slip rings must be insulated from the rotor shaft. technician b says that at least one slip ring must be grounded to the shaft to provide a complete circuit for current flow
Answer:
Technician A is correct while Technician B is incorrect.
Explanation:
If Technician a says that that both slip rings must be insulated from the rotor shaft, then, technician a is correct.
If technician b says that at least one slip ring must be grounded to the shaft to provide a complete circuit for current flow, this statement is incorrect because each slip ring must be connected to one of the three phases of rotor windings. And the slip ring brushes are connected to a resistive device ( like a rheostat). When the slip rings turn with the rotor, the brushes will maintain constant contact with the rings and transfer the resistance to the rotor windings. Therefore, Technician A is correct while Technician B is incorrect.
what are similar things that convex and concave have in common ?
Answer:
they are both curved surfaces
Explanation:
PLEASE HELP THE ANSWER CHOICES I SHOWED R FOR ALL THE ANSWERS
TY
Answer:
mechanical wave -> a wave that requires a medium through which to travel
wave -> a disturbance that transfers energy from one place to another place
medium -> the matter that waves flow through
Answer:
Medium - The matter that waves flow through
Mechanical wave - A wave that requires a medium through which to travel
Wave - A disturbance that transfers energy from place to another
.
Hope this helps! <3
how many regions does the spine have and what are them ?s
the spine is divided into four main regions: cervical, thoracic, lumbar and sacral.
Have an amazing day! <3
if the half life of uranium 232 is 70 years how many half lives will it take for 10 grams of it to be reduced to 1.25 grams
Given :
The half life of uranium 232 is 70 years.
To Find :
How many half lives will it take for 10 grams of it to be reduced to 1.25 grams.
Solution :
We know, formula of radioactive decay is :
[tex]\dfrac{N}{N_o}=(\dfrac{1}{2})^n[/tex]
Here, [tex]N_o[/tex] is initial amount and N is remaining amount.
Putting all given values in above equation, we get :
[tex](\dfrac{1}{2})^n = \dfrac{1.25}{10}\\\\(\dfrac{1}{2})^n = \dfrac{1}{8}\\\\n = 3[/tex]
Therefore, it takes 3 half lives i.e. 210 years to reduced to 1.25 grams.
What is the rate of acceleration for a 500kg hippopotamus that is being pushed with a force of 1000 N?
Answer:
0.5 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex]a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{500}{1000} = \frac{1}{2} \\ [/tex]
We have the final answer as
0.5 m/s²Hope this helps you
A woman of mass 44 kg jumps off the bow of
a 69 kg canoe that is intially at rest.
If her velocity is 2.5 m/s to the right, what
is the velocity of the canoe after she jumps?
Answer in units of m/si.
Answer:
v₃ = 1.59 [m/s]
Explanation:
In order to solve this problem, we must use the principle of conservation of linear momentum.
That is, the momentum is conserved before and after the jump.
Before the jump, we have the mass of the woman and the canoe without speed (at rest). After the jump you have the woman moving to the right and the canoe moving to the left.
[tex](m_{1}+m_{2})*v_{1}=(m_{1}*v_{2})-(m_{2}*v_{3})[/tex]
where:
m₁ = mass of the woman = 44 [kg]
m₂ = mass of the canoe = 69 [kg]
v₁ = velocity of the canoe at rest = 0
v₂ = velocity of the woman after jumping = 2.5 [m/s]
v₃ = velocity of the canoe after jumping = [m/s]
[tex](44+69)*0= (44*2.5)-(69*v_{3})\\110 = 69*v_{3}\\v_{3}=1.59[m/s][/tex]
which is the correct answer?
What is the definition of force according to Newton's first law of motion?
Explanation:
Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. ... If that velocity is zero, then the object remains at rest. If an external force is applied, the velocity will change because of the force.
A truck travels at 74m/s, it travels 250 m then comes to a stop. How fast was the truck accelerating?
Answer:
acceleration = - 10.952
Explanation:
Since it was traveling at 74m/s initially, initial velocity - 74m/s.
Second, since it came to a stop, final velocity - 0 m/s.
Displacement - 250 m.
Use the kinematic equation to solve for acceleration.
[tex]v_f^2 = v_i^2 + 2ax[/tex]
0^2 = 74^2 + 2(a)(250)
0 = 5476 + 500a
-5476 = 500a
a = -5476 / 500 = -10.952
Find the gravitational potential energy for a 65 kg person sitting on a diving board that is 3.0m high
Answer:
1911 J
Explanation:
P.E = mgh
P.E= (65)(9.8)(3)
Andrew gathered several different species of seed plants. Which three characteristics do all the plants most likely share? have pollen and flowers; lack phloem have pollen and rhizoids; lack xylem have xylem and phloem; lack pollen have xylem and phloem; lack rhizoids
The three characteristics that all the plants most likely share are: have xylem and phloem; lack pollen. Option D.
In seed plants, xylem and phloem are essential vascular tissues responsible for the transport of water, nutrients, and sugars throughout the plant. Xylem transports water and minerals from the roots to the rest of the plant, while phloem carries sugars and other organic compounds from photosynthetic regions to other parts of the plant.
The absence of pollen indicates that these plants do not reproduce through the production and dispersal of pollen grains. Instead, they likely reproduce through other means, such as the production of seeds.
This combination of having xylem and phloem while lacking pollen suggests that the plants in question are likely gymnosperms. Gymnosperms are a group of seed plants that include conifers, cycads, ginkgoes, and others. These plants typically produce seeds that are not enclosed within a fruit, and they rely on other methods such as wind or insects for pollination.
It is important to note that this conclusion is based on the provided information and is subject to change depending on further details about the specific characteristics of the gathered plants. SO Option D is correct.
For more question on plants visit:
https://brainly.com/question/32057181
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Which of the following is a definition of acceleration? *
Answer:
Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
somebody please help!!!
Answer: it’s E. you can’t solve without the mass
Explanation:
A hydraulic machine has a small piston and a larger piston. Explain how a hydraulic machine multiplies force? What happens to the value of Pressure applied in small piston?
Answer:
Explanation:
Pressure is equal to the force divided by the area on which it acts. Since the smaller piston has less area so from less force also we can get more efficiency in work. And according to the Pascal's principle, in a hydraulic system, pressure exerted on a piston produces an equal increase in pressure on another piston in the system. Thus by applying little force in the smaller piston, we can get same force from larger piston too. A hydraulic machine magnifies force.
What is the Kinetic Energy of the glass when it is
about to hit the floor with the speed of 27m/s.
What is the total mechanical energy of the system?
Justify your answer
Answer: 197
Explanation:
Because mechanical energy and mass it speeds up
A coyote walks 20 meters in 40 seconds, what is its average speed?
Answer:
the answer is 0.5m/s in meters per second
Definition of complex machine
Answer:A complex system is a system composed of many components which may interact with each other.
Explanation: hope this helped!
A body is moving with a uniform acceleration of 2m/s² what does it mean?
Answer:
the body has energy due to its constant motion. it means it moves in a uniform acceleration which has zero velocity
Explanation:
Uniform or constant acceleration is a type of motion in which the velocity of an object changes by an equal amount in every equal time period.
Describe the process occurring in the Sun’s core
Answer:
The proton-proton fusion process that is the source of energy from the Sun. The energy from the Sun - both heat and light energy - originates from a nuclear fusion process that is occurring inside the core of the Sun. The specific type of fusion that occurs inside of the Sun is known as proton-proton fusion.
Explanation:
Have a great day everyone :)
Answer:
This is what happens to the hydrogen gas in the core of the Sun. It gets squeezed together so tightly that four hydrogen nuclei combine to form one helium atom.
^This is called nuclear fusion. while this is happening some of the mass of the hydrogen atoms are made into energy in the form of light.
Explanation:
true or false/ force field that exists in the space around every massive body is called electric field
Answer:
True
Explanation:
An electric field is a region around a charged particle or object within which a force would be exerted on other charged particles or objects.
Mention any five uses of simple machines.
Answer:
Inclined Plane - A ramp, for example a wheelchair ramp to help move to another level.
Wheel & Axle - On lawnmowers and wheelbarrow.
Lever - A seesaw
Pulley - adjustable clothesline (think from back then when you would put clothes out to dry them)
Screw - the bottle caps you screw on or off
