penguins! so momentum is based on mass and velocity, the advantages is that they have stored mass in the form of like fats to keep them warm however they are built to slide basically so that there is less friction when they travel so sideways their bullet like shape helps increase velocity so they have both mass and considerable velocity!
Thunder is heard 7.2 seconds after a bolt of lightning is observed. If the speed of sound is 340 m/s, how far away did the lightning strike?
Answer:
2.448km awayExplanation:mark me brainly pls ty.Which situations describe an elastic collision?
0 Two glass marbles bounce off each other.
O Rodrick flops onto his sofa and sinks into the cushion.
C A tossed water balloon flattens when on lands on the grass.
O
A bowling ball knocks over five pins.
[tex]\qquad\qquad \huge \bf༆ Answer ༄[/tex]
➙ The Correct choice is A
⧠ when two glass marbles bounce off each other, they regain their respective position after collision, since the Loss of energy is minimum, it can be considered as an elastic collision.
Answer:
Explanation:
The question asks "What situations..." and to "Select all the correct answers."
In addition to "two marbles bounce off each other", "a bowling ball knocks over five pins" is another correct answer. The collision between ball and pins is elastic because they are both hard.
I'm not that smart so...yeah
15 points
Answer:C
Explanation:
Inner core, outer core, mantle, crust
Answer:
c
Explanation:
Affect bush plane as on motion
Answer:
if the thrust is increased
A 12.0 kilogram mass weighs 84.0 newtons on a newly discovered planet. What is the magnitude of the acceleration due to gravity on this planet?
A) 1.20 m/s^2
B) 7.0 m/s^2
C) 9.8 m/s^2
D) 84 m/s^2
The weight is the mass times the acceleration due to gravity
[tex]Weight = mass*acceleration-due-to-gravity\\\\84N = 12kg* acceleration-due-to-gravity\\\\acceleration-due-to-gravity = 84N / 12kg\\\\acceleration-due-to-gravity = 7.0 m/s^2[/tex]
Thus the acceleration due to gravity is 7.0m/s^2.
Hope that helped!
how much work was done on a charge of 3.0 to move it through 12v electric potential difference
Answer:
Hence, the work done in moving the charge is 45 J.( Too lazy to translate it to Spanish T_T )Answer:
45 J
Explanation:
Potential difference (V)= 15 V
Charge (Q)= 3C
We know that
The potential difference(p.d) between two point in an electric circuit is defined as the amount of work done in moving a unit charge from one point to the other point.
Potential difference (V) = work done (W)/Charge (Q)
V= W/Q
Putting the values in the above formula we get:
15 V = W / 3 C
W= 15 V × 3 C
W= 45 J
Hence, the work done in moving the charge is 45 J.
A cube of Iron, 0.0800 m on a side, has a density of 7874 kg/m^3. What is its mass? a (Unit = kg)
The mass of the iron cube of side 0.0800 m, having a density of 7874 kg/m³ is 50.39 kg.
What is mass?Mass can be defined as the quantity of matter a body contains
To calculate the mass of the iron cube, we use the formula below.
Formula:
m = DL³........... Equation 1Where:
m = mass of the iron cubeD = Density of the iron cubeL = Length of each side of the cubeFrom the question,
Given:
D = 7874 kg/m³L = 0.08 mSubstitute these values into equation 1
m = 7874(0.08³)m = 50.39 kgHence, The mass of the iron cube is 50.39 kg.
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Answer:
4.03
Explanation:
correct answer for acellus
Why MA Is less than VR?
The mechanical advantage (M.A) of a real
machine is always less than its velocity ratio (V.R.)
because mechanical advantage decreases due to the friction and weight of moving parts of the machine where as the velocity ratio remains constant.
#brainlyeveryday
It takes approximately one second for light to travel from the moon to earth suppose there was a large mirror on the moon now a bright light flashes on earth how long will it take for you to see the light reflected by tthe mirror explain how you got your answer
Answer:
You would notice it right away.
Explanation:
When you hear or see something, it is happening right at that moment. It takes you less than a second to realize it.
A positive test charge of 5.0x10 -6 C is in an electric field that exerts a force of 2.0x10 -4 N on it. What is the magnitude of the electric field at the location of the test charge
answer:
click on the picture, hope it helps
The magnitude of the electric field at that location is is 40 N.C⁻¹.
What is electric field?The force per unit charge exerted on a positive test charge that is at rest at a given position is the force per unit charge that is used to define the electric field analytically.
Electric charge or magnetic fields with variable amplitudes can produce an electric field.
Given parameters:
Charge of the positive test charge, q = 5.0x10⁻⁶ C.
Electric force exerted by the electric field, F = 2.0x10⁻⁴ N.
Then, electric field at the position, E = F/q
= 2.0x10⁻⁴ / 5.0x10⁻⁶ N.C⁻¹.
= 40 N.C⁻¹.
Hence, the magnitude of the electric field at the location of the test charge is 40 N.C⁻¹.
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Find the Thrust required to exert a Pressure of 80000 Pascal on an Area of 0.04 m²
Question :-
Find the Thrust required to exert a Pressure of 80000 Pascal on an Area of 0.04 m² .Answer :-
The required Thrust is 3200 N .[tex] \rule {180pt} {2pt} [/tex]
Given :-
Pressure = 80000 PascalArea = 0.04 m²To Find :-
Thrust = ?Solution :-
As per the provided information in the given question, we have been given that the Pressure is 80,000 Pascal . Area is given 0.04 m² . And, we have been asked to calculate the Thrust .
For calculating the Thrust , we will use the Formula :-
Thrust = Pressure × AreaTherefore , by Substituting the given values in the above Formula :-
⇒ Thrust = Pressure × Area
⇒ Thrust = 80000 × 0.04
⇒ Thrust = 3200
Hence :-
Thrust = 3200 N .[tex] \underline {\rule {180pt} {4pt}} [/tex]
Provided that:
Pressure = 80,000 PascalArea = 0.04 m sq.To determine:
ThrustSolution:
Thrust = 3200 NUsing concept:
Pressure formulaUsing formula:
Pressure = Force/ AreaRequired Solution:
»»» Pressure = Force/Area
»»» Pressure = Thrust/Area
»»» 80000 = Thrust/0.04
»»» 80000 x 0.04 = Thrust
3200 N = Thrust[tex]brainlyeveryday[/tex]
HELP me need it asap
Answer:
D, D, A, C, D
Explanation:
Which statement demonstrates that ultraviolet (UV) rays are electromagnetic waves?
A.
They require a medium to travel.
B.
They don’t require a medium to travel.
C.
The particles of the medium through which they travel vibrate perpendicularly to the direction of the wave.
D.
The particles of the medium through which they travel vibrate parallel to the direction of the wave.
E.
The particles in the medium through which they travel remain stationary.
Question # 1 Multiple Choice A suspect who fakes intellectual disability in order to explain his innocence in a murder _____. is insane is insane is psychotic is psychotic is malingering is malingering has a mental illness
Given what we know we can confirm that a suspect who fakes intellectual disability in order to explain his innocence in a murder is malingering.
What is malingering?This is the action of pretending to be ill in some way in order to avoid a certain responsibility. In this case, the suspect is malingering in order to avoid the consequences of their actions.
Therefore, we can confirm that a suspect who fakes intellectual disability in order to explain his innocence in a murder is malingering.
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Which catastrophic event does NOT have an earthquake as a possible trigger?
hurricane?
tsunami?
landslide?
Answer:
hurricane
Explanation:
put a lamp in the circuit in such a way as to increase the total current, without affecting the brightness of any of the lamps A and B. PLEASE HELP I HSVE A TEST
Read the scenario below and answer the question that follows. Mariah trained for months leading up to the marathon, and she won. After seeing this, her friends and family would describe her as motivated and athletic. According to Maslow, which need is Mariah trying to meet? A. Safety B. Physiological C. Esteem D. Cognitive Please select the best answer from the choices provided A B C D.
According to Maslow, the need that Mariah is trying to meet by training for months in order for her family to describe her as athletic and motivated is esteem.
What are Maslow's Hierarchy of Needs?In 1943, an American psychologist called Abraham Maslow classified human needs in an hierarchical order.
The hierarchy of needs are as follows:
physiological needs - food and sheltersafety needs - securitylove and belonging needs - familyesteem needs - confidence in personal growthself-actualization needs - fulfilment of full potentialAccording to this question, Mariah is trying to meet esteem needs.
Learn more about Maslow's hierarchy of needs at: https://brainly.com/question/15705081
Answer:
C
Explanation:
wave has a Wavelength of .5 meters and a Frequency of 100 Hz.
What is its velocity
v=λf
v=0.5 x 100
v = 50 m/s
What should scientists do when they see that the data collection or analysis
from their experiment has limitations?
A. Decide not to report any of the experimental results.
ОС
B. Repeat the experiment to see if it still has limitations.
C. Ignore the limitations when they draw conclusions.
D. Describe the limitations in detail in their final report.
Answer:
repeat using same variables
Explanation:
have peer repeat using same variables
can someone please answer this, ill give you brainliest and your getting 100 points.
Explanation:
Look at South American and African plates
They are going away from each otherThere is a heavy chance of getting youngest rock
Two people push a car for 3 s with a combined net force of 200 N. Calculate the impulse provided to the car.
Question :-
Two people push the car for 3 sec with combined net Force of 200 N. Calculate the Impulse provided to car .Answer :-
Impulse provided to car is 600 Ns .[tex] \rule {180pt} {2pt} [/tex]
Given :-
Time = 3 secForce = 200 NTo Find :-
Impulse = ?Solution :-
As per the provided information in the given question, we have been given that the Time take by the people to push the car is 3 seconds . The Force required is 200 N . And, we have been asked to calculate the Impulse .
For calculating the Impulse , we will use the Formula :-
Impulse = Force × TimeTherefore , by Substituting the given values in the above Formula :-
⇒ Impulse = Force × Time
⇒ Impulse = 200 × 3
⇒ Impulse = 600
Hence :-
Impulse = 600 Ns .[tex] \underline {\rule {180pt} {4pt}} [/tex]
A student performed two experiments and noted her observations below. Based on the information above, which of the following best describes the results of the experiments? Select one: Experiment 1 produced a chemical change; Experiment 2 produced a physical change Both experiments created only physical changes. Experiment 1 produced a physical change; Experiment 2 produced a chemical change Both experiments created a chemical change.
A physical change is one in which there is no new substance formed.
What is a physical change?A physical change is one in which there is no new substance formed. On the other hand, a new substance is formed in a chemical change. The following are cues that can show that a chemical change has taken place;
Change in temperatureEvolution of a gasAppearance of colorAppearance of a solid.In the absence of any of these, the experiment is a physical change. The question is incomplete as the observations were not shown here.
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Can anyone explain and get the answer pls?
FL₁ =Fl₂
80.x₁ = 30.7
x₁=2.625 m
Light incident on a lake surface is partly reflected and partly refracted. How is the reflected ray different from the incident ray? A. The incident ray is unpolarized whereas the reflected ray is horizontally polarized. B. The incident ray is unpolarized whereas the reflected ray is vertically polarized. C. The incident ray is horizontally polarized whereas the reflected ray is unpolarized. D. The incident ray is vertically polarized whereas the reflected ray is unpolarized. E. The incident ray is vertically polarized whereas the reflected ray is horizontally polarized.
Option B is correct.
(B )The incident ray is unpolarized whereas the reflected ray is vertically polarized.
What is a ray?Ray is the next in a series of characters. Ray is made up of two elements: a line and a line segment. It has one terminating end and one indefinitely extending end.
The ray's length cannot be determined. A ray is seen in the diagram below.
Reason ;
Many light sources, such as the sun, create polarised waves ( randomly). Unpolarized light is made up of a large number of waves with all conceivable polarisation directions.
Hence option B is correct.
(B )The incident ray is unpolarized whereas the reflected ray is vertically polarized.
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A slinky was measured to carry a longitudinal wave 10 tiles (on the floor) per second. One tile is 30 cm. What is the speed of this wave? In your answer , use millimeters and scientific notation
(10 tiles/sec) · (30 cm/tile) = 300 cm/sec
That's 3000 mm/sec
That's 3 x 10³ mm/sec
I = _____ amp
O 54
O 2.7
O 2.0
O 10
Apply ohms law
R=98V=24
[tex]\\ \rm\Rrightarrow I=\dfrac{V}{R}[/tex]
[tex]\\ \rm\Rrightarrow I=\dfrac{24}{9}[/tex]
[tex]\\ \rm\Rrightarrow I=2.7A[/tex]
During early research in nuclear energy, why were scientists surprised that the products from splitting a uranium nucleus had less mass than the reactants? They expected that the large release of energy would cause an increase in mass. Up to that time, only chemical changes were known to form less mass than they started with. All known changes always started and ended with the same amount of mass. Other known nuclear changes resulted in the same mass of products as reactants.
The scientist gets surprised In terms of the masses of the subatomic particles, scientists anticipated the rule of conservation of mass to apply to nuclear fission and it got failed.
What is nuclear power?The utilization of nuclear reactions to generate energy is known as a nuclear power. Nuclear fission, nuclear decay, and nuclear fusion processes are all sources of nuclear energy.
Nuclear power facilities currently produce the great bulk of the electricity generated by nuclear fission of uranium and plutonium.
In terms of the masses of the subatomic particles, scientists anticipated the rule of conservation of mass to apply to nuclear fission.
An atom's mass is not equal to the sum of the masses of the subatomic particles that make it up in actuality.
The energy that bonds the subatomic particles is the reason behind this. When a link is broken, the mass of the energy of the bonds is lost, resulting in what we now refer to as a mass defect.
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Answer:
I don't know the answer but I can say the answer isn't B, so don't pick B.
Explanation:
I got it wrong on edge test, i picked B but, B is not correct.
A 1000 kg car rides over a hill with a radius of curvature of 30 m. What is the maximum speed that the car can
travel over the hill without launching off the hill (when it's too fast to be in circular motion). Round to a whole
number.
Let's say that the car moves over the hill at 10m/s. What is the value of the normal force at the top of the hill? Answer with 2 sig figs
Answer:
hi-
Explanation:
Since v = R , For the car to lose contact with the road, it must be traveling at a speed of 28 m/s or greater when it reaches the crest of the hill. At lower speeds, the car would remain in contact with the road.
Do you ever feel so depressed that you cant even cry anymore?
In how many ways can sound be produced
Answer:
1
Explanation:
sound is produced by vibration