Answer:
Thrust is the force acting normally to a surface. So, Thrust = 1200 N. And , Pressure = Thrust / Area. = 1200 / 0.001. = ...
Explanation:
this right like me
1. In physical science, work occurs when a ___
distance from the start point.
a. Voltage
b. Power
C. Force
d. Velocity
e. Energy
Susie rolls a bowling ball down the alley and knocks over most of the pins. Explain why fewer pins were knocked over when her little brother rolled a basketball, at the same velocity, down the alley.
Answer:
The force used
Explanation:
This has to be because of the force used. Both Susie and her younger brother might have hit the ball with the same velocity, but they surely couldn't have hit it with the same force. The force with which Susie hurts it is heavier than that with which her younger brother hits it, and as such, Susie gets to fall down more pins than her brother will be able to. The ball has to have a lot of force in it for it to be able to knock off all the pins there. So basically, the more the force, the higher it's chances of hitting all the pins
The release of energy by the nucleus of an atom as a result of nuclear fission is radiant energy
True or false
Select all that apply. PLZ
Which of the following do not illustrate a complete circuit?
D
C
A
B
A Balloon is filled with water inside, when it is hanged over a burning fire the balloon filled with water doesn't brust why??
because of the water buddy
Ocean divers:
must breathe a mixture of oxygen and helium
cannot withstand the pressure of the ocean without special equipment
may one day breathe with artificial gills
all of the above
Answer:
all of the above.Explanation:
Answer:
im not sure but i think b. cannot withstand the pressure...
if not all the above.
Explanation:
The slope of a distance-time graph will give
R. Una bailarina gira con una frecuencia de 1hz y momento de inercia i = 28.14kg . M2. Calcule su velocidad de giro cuando disminuye su momento de inercia a la mitad.
Answer:
w = 4π rad / s
Explanation:
When the dancer is turning, the body is isolated so the angular momentum is conserved.
initial
L₀ = I₀ w₀
final
L_f = I w
in this case it indicates that the initial moment is Io = 28.14 kg m² and the final moment is half
I = I₀ / 2
frequency and angular velocity are related
w = 2π f
w = 2π 1
wo = 2π rad / s
how angular momentum is conserved
L₀ = L_f
I₀ w₀ = I w
w = [tex]\frac{I_o}{I}[/tex] w₀
let's calculate
w = 2 2π
w = 4π rad / s
4. Without the sun, there would be no way to replace energy released into the environment. True or False
Answer:
true
Explanation:
Plzzz help!! A stationary speed gun emits a
microwave beam at 2.10x1010 Hz. It
reflects off a car and returns 1030 Hz
higher. What is the speed of the car?
(Unit = m/s)
Answer:
The speed of the car is 14.7m/second or 15 m/second approximately.
Explanation:
A microwave beam at [tex]2.10\times10^1^0Hz[/tex] is generated by a stationary speed gun. It bounces off a car and returns at a higher frequency of 1030 Hz. The car's observed frequency would be the product of adding the two frequencies. That is to say,
F =[tex]2.1\times10^1^0+1030[/tex] =[tex]2.100000103\times10^1^0Hz[/tex]
Using doppler effect formula
[tex]F=\frac{C}{C-V}\times f[/tex]
Where
F = observed frequency
f = source frequency
C = speed of light = [tex]3\times10^8[/tex]
V = speed of the car
Putting the values in the formula -
[tex]2.100000103\times10^1^0=\frac{3\times10^8}{3\times10^8-V}\times2.1\times 10^1^0[/tex]
[tex]\frac{2.100000103\times10^1^0}{2.1\times10^1^0}[/tex] [tex]=\frac{3\times10^8}{3\times10^8-V}[/tex]
[tex]1.000000049=\frac{3\times10^8}{3\times10^8-V}[/tex]
by cross multiplication ,
300000014.7 - 1.000000049V = [tex]3\times10^8[/tex]
Collect the like terms
1.000000049V = 14.71429
Make V the subject of formula
V = [tex]\frac{14.71429}{1.000000049}[/tex]
V = 14.7 m/s
Therefore , the speed of the car is 15m/second approximately.
Pls helppp. Is this right?
Answer:
yes you are totally right
Identify 3 parts of your body what are formed from specialized cells or tissues. What makes those cells unique?
Answer:
Cells make up tissues, tissues make up organs, and organs make up organ systems. ... organisms have specialized systems that maintain the internal environment, ... the different organ systems as though they were distinct, parts of one system
Explanation:
I NEED HELP
PLEASEEE
IS MY MIDDLE FINGER FINE
Answer:yea lookin fine
Explanation:
The release of energy by the nucleus of an atom as a result of nuclear fission is radian energy
True or false
It’s due in like 2 hourssss!!
1. A force of 52N acts upon a 4kg block sitting in the ground. Calculate the acceleration of the object (show work)
2. An object of mass 10kg is accelerated upward at 2 m/s^2. What force is required? (Show work)
3. What is the mass of an object if a force of 17N caused it to accelerate at 1.5m/s^2? (Show work)
Answer:
1. Acceleration = 6.25 m/s²
2. Force = 20 Newton.
3. Mass = 11.33 kg
Explanation:
Given the following data;
1. Force = 25N
Mass = 4kg
To find the acceleration;
Acceleration = force/mass
Acceleration = 25/4
Acceleration = 6.25 m/s²
2. Mass = 10kg
Acceleration = 2 m/s²
To find the force required;
Force = mass * acceleration
Force = 10 * 2
Force = 20 Newton.
3. Force = 17N
Acceleration = 1.5 m/s²
To find the mass;
Mass = force/acceleration
Mass = 17/1.5
Mass = 11.33 kg
Which subatomic particle is NOT found in the nucleus of an atom? *
-protons
-neutrons
-electrons
Answer:
Neutrons
Explanation:
Neutrons are not found in the nucleus of an atom
Answer:
Electrons
Explanation:
=> electrons are not found in nucleus of the
atom
=>. they are outside the nucleus
=> revolving around the nucleus in fixed orbit
hope it helps
PLS HELP DUE IN 1 HOUR
Answer: A
Explanation:
If you are sitting 8.20 m from a
70.0 W speaker, what is the
sound level in dB?
(Treat the speaker as a point source.)
(Unit = dB)
The sound level will be 109 decibels. If a person exceed hear a sound more than the certain sound level, the person hearing may damage.
What is sound level?Sound level is the intensity to measure the sound. Decibels are used to quantify sound level.
Sound level or the sound intensity is the ratio of the power to the surface area;
[tex]\rm Intensity = \frac{Pow\pi er }{Surface \ area} \\\\ \rm Intensity = \frac{70}{ 4 \times \pi \times 8 \times 20^{2} } \\\\ I = \ 0.082 \ W/m^2[/tex]
The conversion of the obtained value into the decibel as;
[tex]\rm I = 10 \times log \frac{I}{1 \TIMES 10^{-12}} \\\\\ I = 109 \ decibel[/tex]
Hence, the sound level will be 109 decibels.
To learn more about the sound level, refer to the link;
https://brainly.com/question/12899113
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An upward force applied by a fluid on an object in the fluid is the
O spring force
O Archimedes Principle
O buoyant force
O Hooke's Law
Use words to describe the relationship between the acceleration of an object and the net force acting on the object
A car has moved 6.8 m from when the driver saw the red light to come to a full stop. If the driver was moving with 31.7 m/s when they saw the traffic light, how long did it take for
them to come to stop?
Answer:
i believe that the answer is 4.661764706 seconds
The equation that relates two poles to the force between them and their separation is the ____ square law.
a. exponential
b.inverse
c.double
Xander goes airborne on his scooter as he exits a half-pipe at Newton's Skate Park. Xander and his scooter have a total mass of 50 kg. The net force acting on Xander and the scooter is 25N. What is Xander's acceleration?
Hello,
QUESTION)According to the 2nd Newton's law,
✔ We have : F = m x a ⇔ a = F/m; with F in N, m in kg, a in m/s²
a = 25/50a =0.5 m/s²Therefore Xander's acceleration is 0.5 m/s².
The total mass of Xander and his scooter is 50 kg and the net force acted due to Xander and his scooter is 25 N then the acceleration will be 0.5 m/s².
What is Acceleration?Acceleration is the rate at which the speed and orientation of a moving object change over time. When a spot or object moves faster or slower along a straight line, it is said to be accelerated. Even though the speed is constant, motion on a circle accelerates so because the direction is always shifting. Both by and to acceleration for all other types of motion.
It is a vector quantity because it has both magnitude and direction.
As per the given information provided by the question,
Mass, m = 50 kg
Force, F = 25 N
F = ma
25 N = 50 × a
a = 25/50
a = 0.5 m/s².
Therefore, the acceleration of Xander's acceleration will be 0.5 m/s²
To know more about Acceleration:
https://brainly.com/question/12550364
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How is speed different from velocity?
Answer:Speed is the time rate at which an object is moving along a path
Velocity is the rate and direction of an object's movement.
Explanation:
Hope it helps
A roller coaster is moving 10 m/s and a mass of 7 kg. The roller coaster has
energy. Calculate it
HELP ASAP!!
Hello,
QUESTION)A roller coaster is moving 10 m/s and a mass of 7 kg. The roller coaster has kinetic energy.
✔ We have : Ek = 1/2m x v²; with Ek in J, m in kg and v in m/s
Ek = 1/2 x 7 x 10²Ek = 350 JI NEED HELP ASAP!!!
The product of the component of a force along the direction of displacement and the magnitude of the displacement are known as:
a.
net force
c.
velocity
b.
work
d.
power
Answer:
a
Explanation:
thats yes according to kinematics
When hydrogen reacts with oxygen, hydrogen loses electrons. Which term
applies to what happens to hydrogen in this reaction?
A. Oxidation
B. Synthesis
C. Reduction
D. Redox
Answer:
A.) Oxidation
Explanation:
:p
Hydrogen reacts with oxygen, hydrogen loses electrons. The term
applies to what happens to hydrogen in this reaction is
A. Oxidation
What is oxidation reaction ?
Oxidation is a process where a substance: Loses one or more electrons or gains an oxygen atom or we can say that oxidation is a process which involves the addition of oxygen or any electronegative element or the removal of hydrogen or any electropositive element.
Reduction is the gain of electrons or reduction is a process which involves the addition of hydrogen or any electropositive element or the removal of oxygen or any electronegative element.
A synthesis reaction is a type of reaction in which multiple reactants combine to form a single product. Synthesis reactions release energy in the form of heat and light, so they are exothermic.
correct option is A. Oxidation
To learn more about Oxidation
https://brainly.com/question/16976470?referrer=searchResults
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5) Why mercury is used as thermometeic liquid
Answer: becuase----Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. ... It also has a high boiling point which makes it very suitable to measure higher temperatures. Also, it has a shiny appearance and doesn't stick to the glass surface of glass.
Explanation: hope i helped c:
What happens to the force of gravity between two planets if their masses are both doubled and the distance between them remains the same?
doubles
quadruples
stays the same
decreases to ¼ its original value
Answer:
it Quadruples
Explanation:
Two soccer players kick the same 1-kg ball at the same time in opposite directions. One kicks with a force of 25 N; the other kicks with a force of 10 N. What is the resulting acceleration of the ball, in m/s2 Answer here I
Answer:
The forces offset to produce a net force of 8 N
since the ball is 1 kg
F = ma
a = f/m = 8 N/1 kg = 8 (kg m)/(s^2 kg) = 8 m/s^2
Answer:
15 (These are just here to increase the word limit)