Answer:
Motion
Explanation: Enjoy! :)
Does this marble have potential energy?
1) no
2)yes
Answer:
yes
Explanation:
because it has the potential to move
a sloth moves 3m to the right and then climbs 4m up a tree
Answer:
53.1 Degrees
Explanation:
Process of elimination
What is the inverse square law and how does it relate to gravity?
Answer:
Inverse Square Law Newton proposed the Inverse Square Law. The effect of gravity (and also on forces such as sunlight) works like this. If say we have a half-mass Earth, it would produce a gravity of not half but a quarter (the square of 2).
Which of the following is true about ALL energy conversions?
A)The original from of energy is destroyed.
B)Some of the original energy is converted to thermal energy.
C)Chemical energy is never involved in an energy conversion.
D)Some of the original energy is converted to light energy.
Answer:
d I think
Explanation:
hope this helps
will a parachute work in a vacuum? yes or no and why or why not?
Answer:
No, they require air to operate.
Explanation:
:>
No
Explanation:
Because the parachute will not fit in the vacuum to trust me that's the answer
a net horizontal force of 5000N is applied to a stalled car whose mass is 1500kg. what will be the car's speed after 10s?
Answer:
v=33.3ms⁻¹
Explanation:
F=ma
a=F/m
a=5000/1500
a=3.33ms⁻²
v=u+at
v=0+3.33×10
v=33.3ms⁻¹
Football player A has a mass of 110 kg, and he is running down the field with a velocity of 2 m/s. what is the momentum
Answer:
p= mv
Explanation:
m×v
= 110 ×2m/s
=220m/s
Answer:
EZ PZ bruv
Explanation:
Here is what we're given,
Mass of object (person): 110kg
Velocity of object (person): 2 m/s
Therefore,
Momentum = Mass x Velocity
= 110 x 2
= 220 kg.m/s
a king cobra can strike at a speed of 3.5m/s. it takes a cobra 1 second to strike. how close can you to the cobra and still be alive. ?
Answer:
The minimun distance to the Cobra should be about 3.5 [m]
Explanation:
This problem can be solved using kinematics equations, and by means of the following equation:
v = x/t
where:
v = velocity = 3.5 [m/s]
t = time = 1 [second]
x = distance of the attack
x = 3.5*1 = 3.5 [m]
Answer:
Cobra Kai lol
Explanation:
A spacecraft is fueled using hydrazine (N2H4; molecular weight of 32 grams per mole [g/mol]) and carries 1640 kilograms [kg] of fuel. On a mission to orbit a planet, the fuel will first be warmed from −186 degrees Fahrenheit [°F] to 78 degrees Fahrenheit [°F] before being used after the long space flight to reach the planet. The specific heat capacity of hydrazine is 0.099 kilojoules per mole kelvin [kJ/(mol K)]. If there is 300 watts [W] of power available to heat the fuel, how long will the heating process take in units of hours [h]?
Answer:
The value is [tex]t = 689.029 \ hours [/tex]
Explanation:
From the question we are told that
The molar mass of hydrazine is [tex]Z = 32 g/mol = \frac{32}{1000} = 0.032 \ kg/mol[/tex]
The initial temperature is [tex]T_i = -186 ^o F = (-186-32) *\frac{5}{9} +273.15 = 152\ K[/tex]
The final temperature is [tex]T_f = 78 ^o F = (78-32) *\frac{5}{9} +273.15 = 298.7 \ K[/tex]
The specific heat capacity is [tex]c_h = 0.099 [kJ/(mol K)] = 0.099 *10^3 J/(mol/K)[/tex]
The power available is [tex]P = 300 \ W[/tex]
The mass of the fuel is [tex]m = 1640 \ kg[/tex]
Generally the number of moles of hydrazine present is
[tex]n = \frac{m}{Z}[/tex]
=> [tex]n = \frac{1640}{= 0.032}[/tex]
=> [tex]n = 51250 \ mol[/tex]
Generally the quantity of heat energy needed is mathematically represented as
[tex]Q = n * c_h * (T_f -T_i)[/tex]
=> [tex]Q = 51250 * 0.099 *10^3 * (298.7 - 152)[/tex]
=> [tex]Q = 7.441516913 * 10^{8} \ J[/tex]
Generally the time taken is mathematically represented as
[tex]t = \frac{Q}{P}[/tex]
=> [tex]t = \frac{7.441516913 * 10^{8} }{300}[/tex]
=> t = 2480505.6377 s
Converting to hours
[tex]t = \frac{2480505.6377}{3600}[/tex]
=> [tex]t = 689.029 \ hours [/tex]
The expression for thermal energy and power we were able to find the time necessary to heat the fuel is t = 689 h
To find
TimeThe international measurement system (SI) establishes the fundamental units in the measurement processes, this is defined by convention, giving uniformity in the calculation process and measurement exchange. Before starting the exercise we must reduce the magnitude to the SI system
PM = 32 g / mol ([tex]\frac{1 kg}{1000 g}[/tex] g) = 32 10-3 kg / mol
T₀ = 5/9 (ºF -32) + 273.15 = 5/9 (186 32) +273.15 = 152.0 K
T_f = 5 * (78 - 32) +273.15 = 298.7 K
c_e = 0.099 kj / mol k ([tex]\frac{1000J}{1 kJ}[/tex]) = 0.099 10³ J / mol K
The mole is the amount of matter of the international system (SI), the moles exist must be calculated since they are the mass of the compound for this we use a direct rule of proportions, if a mole has more than 32 10⁻³ kg, when moles are 1640 kg
n = [tex]\frac{m}{PM}[/tex]
n = 1640/32 10⁻³
n = 51.25 10³ mol
If we assume that all energy transfer is thermal, we can use
Q = [tex]m\ c_e ( T_f - T_o)[/tex]
Q = 51.25 10³ 0.099 10³ (298.7 -152.0)
Q = 7.44 10⁸ J
Power defined by the relationship between work and time
P = [tex]\frac{W}{t}[/tex]
In this case the thermal work is equal to the heat ( W=Q)
t = [tex]\frac{Q}{P}[/tex]
t = 7.44 10⁸ / 300
t = 2.48 10⁶ s
They indicate that the answer is given in hours, let's reduce the time
t = 2.48 106 s (1h / 3600s)
t = 6.89 10² h
In conclusion, with the relationship of thermal energy and power, we were able to set the time necessary for the amount of fuel to be t = 689 h
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An alpheid shrimp digs and maintains a deep burrow. While underground, the shrimp is safe. Above ground, it is vulnerable to predators. A goby fish lives in the burrow with the shrimp. The goby fish sits at the entrance, keeping watch for predators, and signals the shrimp with a flick of its tail when it is safe to come out. Or, if a predator swims by, the goby darts into the burrow and the shrimp retreats further inside. These two animals are completely dependent on each other—the goby benefits by getting a burrow to live in and the shrimp knows when predators are near.
Answer:
ase of convenience, since the beneficiary by having a burrow and the shrimp benefits from knowing that there are predators nearby.
Explanation:
This exercise asks to study the dependence between two animals, the shrimp and the puffer fish.
Two types of dependency are defined:
* Complete. What is when one animal lives off the other
* Convenience if one animal does not live on the other
In this case, both the shrimp and the predator do not live on each other, since they feed independently.
So it is a case of convenience, since the beneficiary by having a burrow and the shrimp benefits from knowing that there are predators nearby.
The correct answer is: the balloon benefits by getting a burrow to live in and the shrimp knows when predators are nearby.
Lily replicates an experiment that found that the number of calories in a particular food is 50 kcal. She obtained data from five trials: 50 kcal, 72 kcal, 50 kcal, 12 kcal, and 50 kcal.
Which best describes her data results?
accurate
incorrect
invalid
precise
Answer:
b
Explanation:
Calculate the distance to the ocean floor if sound traveling at 1500 meters per second makes the round trip to the bottom and back in 10 seconds.
7500 meters
150,000 meters
15 meters
150 meters
Answer:
7500 m
Explanation:
The speed is the same both directions, so the sound takes 5 seconds to reach the bottom and 5 seconds to return to the surface.
Distance = speed × time
d = (1500 m/s) (5 s)
d = 7500 m
Answer:
7500
Explanation:
If an object has a mass of 8 kg, what is its approximate weight on Earth?
Answer:
10^24 kg
Explanation:
Based on their chemical formulas, which of these common substances is an
element?
A. Gold (Au)
B. Sugar (C6H1206)
C. Water (H20)
O D. Salt (NaCl)
Answer: C water
Explanation: The explanati is not hard cause the main elements of earth is fire ice water earth
Answer:
A. Gold (Au)
Explanation:
If Vector F represents the Fore of pushing a chair to North ,and its magnitude is 50 N ,What is the magnitude of the force after tripling it and pushed it to the south
150 N
- 100 N
300 N
-50 N
Explanation:
-100 n I think it so check this answer
Kepler-186f is much closer to its sun than Earth is to its sun. Why is it considered to be in the habitable zone even though it’s so close to a sun?
Answer:
See the explanation below
Explanation:
There are many factors that determine the affordability of a planet, than its distance from the sun. It is clear that the solar radiation received by humans cannot be greater or less than certain values recommended by scientists.
However this planet may have a stronger magnetic field that diverts in large quantities the dangerous radiation that can reach Kepler-186f, in the same way the star of this planet may have less intense radiation than our sun.
These factors can be seen in an easier way by investigating the properties of the planet Kepler-186f which must be different from the planet Earth.
answer: Its sun is cooler than our sun, so there is a possibility that water can exist in liquid state on this planet.
Explanation: this is the exact answer.
How many moles are there in 3g of carbon?
Answer:
How many atoms are in 3 grams of carbon? Well... (3 grams of carbon) x (1 mole of carbon/12 grams ) = 3/12 = 1/4 of a mole of carbon
Explanation:
1/4
what is the mechanism of hydraulic machine
Answer:
The hydraulic press allows the applied force (F1) to be converted into a higher force (F2) along some path as many times as the surface of the driven hydraulic cylinder (A2) is larger than the surface of the driving hydraulic cylinder (A1). The hydraulic press works on the basis of Pascal's law, which reads: External pressure is transmitted through the fluids equally in all directions.
The outer layer of bone _____.
Answer:
I believe its called the periosteum , its a thin , dense membrane that contains nerves and blood vessels .
Hoped I helped-
Sleepy~
how to how to find diameter dimension equation of of work done
Answer:
So a diameter is the same as two opposing radii. The formula for the area of a circle is A = π r2, where r is the length of the radius of a circle. We can use our knowledge that a diameter is made up of two radii to understand that r = d/2.
Explanation:
PLEASE HURRY !!!!!!!!
An igneous rock has a coarse texture and is dark in color. How else can this rock be accurately described?
A. small crystals
B. cooled quickly
C. produced from magma
D. formed at Earth’s surface
igneous rocks are produced from magma
Answer:
Igneous rocks are produced from magma
Explanation:
I only answered so you could mark him brainliest
why is magnetic field used to deflect electron beam but not an electric field in a TV picture tube?
Answer:
It is deflected by both electric and magnetic field because it carries negative charge.
Explanation:
i really hope this helps! so sorry if it wasnt the answer you are looking for!
An object, moving with a constant velocity, travels 274 m in 23 s, What is its velocity?
Answer:
11.91 s
Explanation:
274/23=11.91 Second
The process of predicting values that extend beyond the range of data points is called (5 points)
a
absolute value
b
extrapolation
c
interpolation
d
prediction
Answer:
The answer is B extrapolation
The process of predicting values that extend beyond the range of data points is called extrapolation, so option B is correct.
What is extrapolation?Extrapolation is a method of estimating a variable's value outside the original observation range using the relationship between the variable and another variable.
Extrapolation is comparable to interpolation in that it yields estimates between known observations, but extrapolation is more imprecise and more likely to yield meaningless findings. If identical approaches are assumed to be applicable, extrapolation may also refer to the extension of a method.
Creating a tangent line at the end of the known data and extending it past that point is known as linear extrapolation. Only when utilized to extend the graph of a roughly linear function or not too far beyond the existing data will linear extrapolation yield good results.
Therefore, the process of predicting values that extend beyond the range of data points is called extrapolation.
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Physical science is ____.
Physical science is the study of the inorganic world. That is, it does not study living things. (Those are studied in biological, or life, science.) The four main branches of physical science are astronomy, physics, chemistry, and the Earth sciences, which include meteorology and geology.
Answer:
Physical science is a branch of natural science that studies non-living systems, in contrast to life science. It in turn has many branches, each referred to as a "physical science", together called the "physical sciences".
Explanation:
A person jogs 10 meters in 5 seconds calculate her avarage speed
Answer:
So first determine how many times does 5 go into 100.
100/5=20
Thus in 100 seconds the boy would have traveled a distance of 10 meters 20 times.
10*20=200
If the boy travels 10meters in 5 seconds, he travels 200m in 100seconds.
Here, we know that the the total distance is 10m and the total time is 5s . so the avg. speed is 10m5s=2m/s .
If this helped please give me brainliest!
Which event causes tides
Answer:
High tides and low tides are caused by the Moon.
Explanation:
The Moon's gravitational pull generates something called the tidal force.
Answer:
The moon is one
Explanation:
The moon has a strong gravitational force, and because of that it has certain control on Earth's oceans which can make tides
How can liquid pressure phenomena be used in daily life. Give one example with explanation of working?
Answer:
An example in which liquid pressure phenomena can be used in daily life is in Water blasting
Explanation:
Water blasting refers application of pressurized water to remove materials from the surface of objects.
There are different varieties of water blasting, including;
Hydrocleaning; Cleaning enabled by the use of high pressure water
Hydrodemolition; Demolition or removal of concrete using pressurized water
Hydrojetting; The spraying of water under pressure on surfaces in order to remove surface contaminants.
007 (part 1 of 2) 10.0 points
While John is traveling along a straight inter-
state highway, he notices that the mile marker
reads 246 km. John travels until he reaches
the 147 km marker and then retraces his path
to the 172 km marker.
What is John's resultant displacement from
the 246 km marker?
Answer in units of km.
Answer:
74 km
Explanation:
Ler the position of markers be A,B, and C for notation 246 km, 172 km, and 147 km respectively. John's whole journey has been shown in the figure.
As given,his initial position was the point A. At first, he travelled from the point A to C, then he traveled back from the point C to B on the straight path. His final position is at the point B.
The resultant displacement equals to the shortest distance between the final and the initial positions.
So, the magnitude of the resultant displacement is |172-246| km=74 km and the direction is towards point B from point A.
lithification is a process of:
a. melting igneous rock
b. eliminating spaces between grains
c. forming sedimentary rock
d. causing uplift
Lithification is a process of forming sedimentary rock. The correct option is D.
What do you mean by lithification?The challenging process of lithification converts loose silt grains that have recently been deposited into rock. Once a silt is deposited, lithification may occur immediately or later. Cementation is one of the crucial processes, particularly for sandstones and conglomerates.
What makes lithification significant?Fresh sediment is often a loose substance that has several pores or open holes that are either filled with air or water. Lithification works to fill in the reduced pore space with a mineral deposits substance. Compaction and cementation are the major lithification processes.
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