Answer:
Answer is neutrons.
Explanation:
The nucleus contains two types of subatomic particles, protons and neutrons.the protons have a positive electrical charge and the neutrons have no electrical charge.
I hope it's helpful!
Wings produce a downward force .Why would this be useful to a race car?
Answer:
it increases drag
Explanation:
4. Deformation of the hood in a head-on collision-
A. increases the mass of the car and increases the force on the occupants.
B. decreases the mass of the car and decreases the force on the occupants.
C. decreases the stopping distance and increases the force on the occupants.
D. increases the stopping distance and decreases the force on the occupants.
Answer:
D
Explanation:
not sure but the answer is on quizlet . & i got a 100 so yeah
Deformation of the hood in a head-on collision- would increase the stopping distance and decreases the force on the occupants.
Therefore the correct answer is option D.
What is elastic collision?It is the type of collision in which the total momentum as well as the kinetic energy of the system is conserved.
In an elastic collision, the quantity's momentum is preserved because the momentum before and after the impact is equal.
In a head-on accident, deformation of the hood would lengthen the required stopping distance and lessen the force applied to the passengers.
The stopping distance increases which increases the time period and reduces the impact of the force.
Thus, the correct answer is option D.
Learn more about the collision from here, refer to the link;
brainly.com/question/2356330
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How long would it take a bike to travel 20 miles at 12 mph?
Answer:
1²/3 hours or ⁵/3 hours
Explanation:
Time = Distance ÷Speed
Therefore time = 20miles ÷ 12 miles per hour
=⁵/3 hours
Help!
In a school zone, speeding fines?
A. are the same.
B. are doubled.
C. are tripled.
Questlon 2 of 10
What does Archimedes' principle state?
OA. The pressure of a fluid decreases as the speed of the fluid
OB. The pressure exerted by a fluid decreases as depth increases.
OC. The pressure at two pistons within an enclosed fluid system is
OD. The buoyant force on an object is equal to the weight of the fluid
increases.
always the same.
displaced by the object.
SUBMIT
Answer:
the answer is OD which says tge buoyant girce on an object is equal to the weight of th fluid
If you put something like a piece of cardboard between a magnet and an iron nail, the magnet still holds the nail in place, even though the magnet is not touching the nail.
Explain how that happens.
Answer:
Hiiii
Explanation:
Helllooooooo
The total mass of the train and its passengers is 750000kg. The train is traveling at a speed of 84m/s. The driver applies the brakes and the train takes 80s to slow down to a speed of 42m/s.
Answer:
|F| = 393750 N
Explanation:
Given that,
Total mass of the train, m = 750000 kg
Initial speed, u = 84 m/s
Final speed, v = 42 m/s
Time, t = 80 s
We need to find the net force acting on the train. The formula for force is given by :
F = ma
[tex]F=\dfrac{m(v-u)}{t}\\\\F=\dfrac{750000\times (42-84)}{80}\\\\F=-393750\ N[/tex]
So, the magnitude of net force is 393750 N.
why mole is called fundamental unit.
Explanation:
because it doesn't depend upon other unit like kg meter and second
in science, the inquiry process involves observing, questioning, ________, and summarizing.
Answer:
proceesing
Explanation:
Answer:
predicting
Explanation:
for ap3x users
I NEED ANSWERS!
Give an example of how energy flows in a system. Come up
with an example that was not explained in the text.
Answer:
A water fall?
Explanation:
It's an example I took in my science class
"For example, when you exercise you get hot. The heat you feel in your body results from the energy transfers that happen when you move. When you sweat, your body expends energy to cool itself down. A food chain shows how energy flows from one organism to another."
A boy is displaced at a certain distance (x) by a force of 30N. If the displacement is in the direction of the force, what is the value of x.
The question is incomplete, the complete question is;
A body is displaced through a certain distance x by a force of 30newtons .if the workdone is100j and the displacement is in the direction of the force, what is the value of x
Answer:
3.33 m in the direction of the force
Explanation:
We say that work is done when the force applied moves an object by some distance in the direction of the force.
Hence;
Work = Force × displacement
Displacement = Work /Force
Displacement = 100 J/30 N
Displacement = 3.33 m in the direction of the force
Please select the word from the list that best fits the definition
state of most nonmetals at room temperature
options: left, gas, semiconductor, halogen, right, solid, carbon nitrogen
Answer:
the answer is gas if I'm not mistaken.
Explanation:
Don't come at me if I'm wrong please :')
which came the egg or the chiken
Answer:
the chicken.
Explanation:
Answer:
the chicken
Explanation:
Determine the pressure P of a 450K Oxygen gas in a gas chamber when its initial pressure is 175Pa has a temp 300K
Answer:
262.5Pa
Explanation:
Given parameters:
P1 = 175Pa
T1 = 300K
T2 = 450K
Unknown:
P2 = ?
Solution:
To solve this problem, we are going to use an adaptation of the combined gas law.
[tex]\frac{P1}{T1}[/tex] = [tex]\frac{P2}{T2}[/tex]
Insert the parameters and solve;
[tex]\frac{175}{300}[/tex] = [tex]\frac{P2}{450}[/tex]
P2 = 262.5Pa
1. 1. A 2 kg ball starts with a velocity of 4 m/s. After a force is applied to it for 5 s, its
velocity is 12 m/s. What is the force acting on the ball?
Answer:
F = 3.2[N]
Explanation:
This problem can be solved by applying the principle of conservation of linear momentum, where the original momentum plus the momentum applied on the body, will be equal to the final momentum. This can be interpreted by means of the following equation.
[tex](m_{1}*v_{1})+(F*t)=(m_{1}*v_{2})[/tex]
where:
m₁ = mass of the ball = 2 [kg]
v₁ = initial velocity = 4 [m/s]
F = force applied [N]
t = time = 5 [s]
v₂ = final velocity = 12 [m/s]
Now replacing:
[tex](2*4)+(F*5)=(2*12)\\8+5*F=24\\5*F=24-8\\5*F=16\\\\F=3.2[N][/tex]
5. How fast does a 50 gram arrow need to travel to have 40 Joules of kinetic energy?
Answer: v = 40 m/5
Explanation:
40 J = 1/2 (105) v^2
1600 = v^2
v = 40 m/5
The velocity of the arrow weighing 50 g or 0.05 Kg to have a kinetic energy of 40 joules is 40 m/s.
What is kinetic energy?Kinetic energy is the energy generated in a body by virtue of the motion of the body. It is dependent on the mass and velocity of the body by the relation written below:
Ke = 1/2 mv²
Given the mass of the arrow = 50 g = 0. 05 kg
kinetic energy = 40 J
Thus velocity of the arrow = √(2 Ke / m)
= √(2 × 40 J / 0.05 Kg)
= 40 m/s .
Therefore, the velocity of the arrow will be 40 m/s
To find more on kinetic energy, refer here:
https://brainly.com/question/26590527
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how many atoms does each element have in HNo3
Answer:
1 hydrogen, 1 nitrogen and 3 oxygen atoms.
Explanation:
. Justin completes an experiment length of time a paper airplane stays in flight. He records his results in a
data table. These results are known as _______results.
A. written
B. tabled
C. qualitative
D. quantitative
Explanation:
Qualitative is to observe and note a quality about something - like the paper airplanes are made out of "white" paper. White is a qualitative property.
Quantitative is to observe and measure a value - like the time of flight of a paper airplane.
can anyone help?? (or tell me some apps)
Answer:
try "socratic" it's an awesome app!
Explanation:
DEFINE METRIC PREFIX.
Answer:
A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic. Each prefix has a unique symbol that is prepended to any unit symbol.
Explanation:
In the metric system of measurement, designations of multiples and subdivision of any unit may be arrived at by combining with the name of the unit the prefixes deka, hecto, and kilo meaning, respectively, 10, 100, and 1000, and deci, centi, and milli, meaning, respectively, one-tenth, one-hundredth, and one-thousandth ...
If you double the distance between you and the center of Earth, what happens to the strength of the gravitational field you experience?
Answer:
The strength of gravity decreases.
An example of that would be if you were in space; you float around because there's no gravity.
Which has the greater change in momentum, a ball which hits a wall and sticks ot a ball that hits a wall and bounces backwards?
This was due yesterday...
Answer:
the answer is c
Explanation:
water is abiotic
Answer:
the answer is C
Explanation:
Its the only reaction with abiotic and biotic.
Research is being done on the use of radio waves in destroying cancer cells. What type of frequency would be best used in this technology?
Answer:
Radiofrequency Ablation (RFA) which is a type of Electrical Energy is used to treat cancer. If it sees heat made by radio waves to kill cancer cells. Ablation means destroying completely. The method is putting RFA a probe (electrode) that goes through the skin into the tumor. A CT scan is needed so to check that the probe is in exactly the right place. An electrode in the probe creates radiofrequency energy to produce heat and kill the cancer cells.
Explanation:
Answer:
The destruction of cancer cells requires a lot of energy, so high-frequency radio waves can be used in this technology because they have high energy.
Explanation:
sample response edge2022
Two bodies of mass m₁ & m₂ are moving with the same velocity 'v' K.E. will be greater for??
Answer:
the one with a higher mass
Explanation:
The body with more mass will have the greater kinetic energy of the two.
Kinetic energy is the energy due to the motion of body. It is mathematically expressed as:
K.E = [tex]\frac{1}{2}[/tex] m v²
m is the mass
v is the velocity
Since the velocity of the two bodies are the same, and mass is directly proportional to kinetic energy, the body with more mass will have a higher kinetic energy.
So between mass m1 and mass m2, the one with a greater mass will have a higher kinetic energy
A 11.0 kg test rocket is fired vertically from Cape Canaveral. Its fuel gives it a kinetic energy of 1985 J by the time the rocket engine burns all of the fuel. What additional height will the rocket rise
Answer:
h = 18.41 m
Explanation:
Given that,
Mass of a test rocket, m = 11 kg
Its fuel gives it a kinetic energy of 1985 J by the time the rocket engine burns all of the fuel.
According to the law of conservation of energy,
PE = KE = mgh
h is height will the rocket rise
[tex]h=\dfrac{E}{mg}\\\\h=\dfrac{1985 }{11\times 9.8}\\\\h=18.41\ m[/tex]
So, the rocket will rise to a height of 18.41 m.
Electrons can move between substances ſchree ways. Which of the following can be
described as electrons moving from one substance to another because they are rubbing
on an insulator?
a. induction
b. friction
c. conduction
Answer:
B.) “Shininess” should be explained as “Light bounces off the moving electrons.”
Explanation:
What force must you exert on a ball point pen in order to apply a pressure of0.067 N/mm2on a piece of paper, if the ball of the pen has a surface area of1.2 mm2touching the paper?
Answer:
The force that must be exerted on the pen is 0.0804 N.
Explanation:
Given;
pressure applied on a piece of paper by ball point of the pen, P = 0.067 N/mm²
surface area of the pen ball point, A = 1.2 mm²
The force that must be exerted on the pen is calculated as;
F = P x A
F = (0.067 N/mm²) x (1.2 mm²)
F = 0.0804 N
Therefore, the force that must be exerted on the pen is 0.0804 N.
How much work is required to move an electron
through a potential difference of 3.00 volts?
(1) 5.33 × 10^–20 J (3) 3.00 J
(2) 4.80 × 10^–19 J (4) 1.88 × 10^19 J
Answer:
(2) the work required to move the electron is 4.8 x 10⁻¹⁹ J.
Explanation:
Given;
potential difference, V = 3.00 volts
charge of electron, q = 1.6 x 10⁻¹⁹ C
The work required to move an electron is calculated as;
W = Vq
where;
W is the work done in Joules
Substitute the given values and solve for W;
W = (3.00)(1.6 x 10⁻¹⁹)
W = 4.8 x 10⁻¹⁹ J.
Therefore, the work required to move the electron is 4.8 x 10⁻¹⁹ J.
In the high jump, the kinetic energy of an athlete is transformed into gravitational potential energy without the aid of a pole. With what minimum speed must the athlete leave the ground in order to lift his center of mass 2.50 m and cross the bar with a speed of 0.68 m/s
Answer:
7.037 m/s
Explanation:
According to the law of energy conservation;
The total of the initial K.E = The total final K.E
This expression implies that:
[tex]\dfrac{1}{2}mv^2 = mgh + \dfrac{1}{2}mu^2[/tex]
By simplifying the above expression;
[tex]v^2 = 2gh + u^2[/tex]
where;
g = 9.81 m/s²
h = 2.50 m
u = 0.68 m/s
∴
[tex]v^2 = 2(9.81 \ m/s^2 )(2.50 \ m) + (0.68 \ m/s)^2[/tex]
[tex]v^2 = 49.5124 \ m^2/s^2[/tex]
[tex]v = \sqrt{ 49.5124 \ m^2/s^2}[/tex]
v = 7.037 m/s
