Answers
runner a was able to run faster in than runner b in the same period of time.
2) C. c is the steepest slope because (5,5) give you the slope of 1 the rest of the slopes arent abrupt
Related Questions
Help quick please thank u
Answers
Answer:
I. 56
II. c is the speed of light in vacuum.
III. 385.180×10¯²⁷ Kg.
Explanation:
I. Determination of the value of p.
²³⁸₉₂U + ¹₀n —> ¹³⁹ₚBa + ⁹⁷₃₆Kr + 3 ¹₀n
92 + 0 = p + 36 + 3(0)
92 = p + 36
Collect like terms
92 – 36 = p
56 = p
Therefore, the value of p is 56
II. Determination of the meaning of c
ΔE = Δmc²
In the Einstein's equation above,
E => is the energy
m => is the mass
c => is the speed of light in vacuum.
III. Determination of the total mass of the element formed after the reaction.
From the reaction above, the elements formed after the reaction are:
Barium–139 and Krypton–97. Thus, we can obtain the total mass of the elements formed as follow:
Mass of Ba–139 = 232.560×10¯²⁷ Kg
Mass of Kr–97 = 152.620×10¯²⁷ Kg
Total mass =?
Total mass = mass of Ba–139 + mass of Kr–97
Total mass = 232.560×10¯²⁷ + 152.620×10¯²⁷
Total mass = 385.180×10¯²⁷ Kg
help me which one is the right answer?
Answers
Answer:
The correct option is (b).
Explanation:
The ideal gas law is given by :
[tex]PV=nRT[/tex]
Where
P, V and T are pressure, volume and temperature of the gas
R is gas constant
[tex]V=\dfrac{nRT}{P}[/tex]
If n,R and P are constant,
[tex]V\propto T[/tex]
i.e.
At constant pressure, the volume of a gas is directly proportional to its temperature. Hence, the correct option is (b).
10) Challenge: A student is pushing a 50 kg cart, with a force of 600 N. Another student measures the speed
of the cart, and finds that the cart is only accelerating at 3 m/s2. How lar is the force pushing back on the car?
Hint: Draw a diagram showing the cart, and the two forces acting on it.
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The explanation is shown in the picture. Hope it helps!
Edit: where I wrote "m/s" , I should have wrote m/s^2
The expansion of a liquid is _____ than a solid
A. less
B. greater
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Answer:
B.Greater
Explanation:
Smack that thanks button pleasee.
The vertical columns on the periodic table of elements are called groups.
A True
B. False
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Answer:
True
Explanation:
please help lol- brainlist to whomever- P.S---> Do it all please, and don't get any wrong. Then you get brainiist.
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Glass: inorganic
Water: inorganic
Sugar: organic
Salt: depends what type of salt it is but most likely inorganic
Olive Oil: organic
The diagrams below show a man swinging a golf club.
The kinetic energy of the golf club at point Y is more than the potential energy of the club at point X. Which of the following statements best explains why this fact does not violate the law of conservation of energy?
Energy is added by the man to the golf club from point X to point Y
Gravity is constant from point X to point Y
Air resistance is greater at point than at point X
Acceleration due to gravity is greater at point than at point X
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Answer: Energy is added, by the man, to the golf club from point X to point Y.
Explanation: i think :)
A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.9 s later. If the speed of sound is 340 m/s, how high is the cliff?
Answers
Answer:
h = 493 m
Explanation:
Given that,
A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.9 s later.
The total distance covered by the rock is 2d. We know that,
Speed = distance/time
[tex]v=\dfrac{2d}{t}\\\\d=\dfrac{vt}{2}\\\\d=\dfrac{340\times 2.9}{2}\\\\d=493\ m[/tex]
So, the height of the cliff is equal to 493 m.
HELP PLEASE (ramadan mubarak)
Redox reactions include which types of reactions?
A.
Acid-base, decomposition, double-replacement, synthesis
B.
Double-replacement, combustion, synthesis, decomposition
C.
Single-replacement, synthesis, decomposition, combustion
D.
Single-replacement, double-replacement, acid-base, synthesis
Answers
Answer:
C
Explanation:
five main types of redox reactions: combination, decomposition, displacement, combustion, and disproportion.
synthesis is kinda the same as combination
According to Newton's third law, what other force must be happening?
Answers
Answer:
The desk is pushing back on Arianna
Explanation:
If you read newton's 3rd law, it states that for every action force (Arianna pushing the desk), there is an equal reaction force (The desk pushing back on her). This is true for EVERY OBJECT THAT HAS MOTION!
When will an object sink in water, according to Archimedes' principle?
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Answer:
If the buoyant force is greater than the object's weight, the object will rise to the surface and float. If the buoyant force is less than the object's weight, the object will sink. If the buoyant force equals the object's weight, the object will remain suspended at that depth.
Explanation:
Not much explaining to do here!
A car driver spends 3 h driving at an average speed of 80 km/h, stops for 30min to have some rest, and then drives at an average speed of 90 km/h for 2 hours. Calculate the average speed during the whole journey.
Answers
Answer:
76.36km
Explanation:
Average speed=Total distance covered ÷ Total
time taken
Distance=Time * speed
3*80=240km
2*90=180km
Total distance covered =240+180=420km
Total time taken=3+1/2 an hour+2=5 1/2 hours
Average speed =420km ÷5 1/2 hours
=76.36km/h
7. A wave was generated by Oscillation and paused at two different times.
Describe differences and similarities in the characteristics of the wave at different times
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Answer:
Differences
The position of the particles in the wave are at different positions at the different times The velocity of each particle will posses different magnitudes and directionacceleration of particles will be different as wellsimilarities
wave length and wave speed will remain the same
Explanation:
A wave generated by Oscillation and paused at two different times will maintain certain characteristics at all times while some characteristics will differ along the wave as it it paused
The differences in the characteristics of the wave at different time ( i.e. at paused and unpaused times )
The position of the particles in the wave are at different positions at the different times The velocity of each particle will posses different magnitudes and directionacceleration of particles will be different as wellsimilarities :
wave length and wave speed will remain the same
what is the microcoulomb if the coulomb is 1,00
Answers
Answer:
Coulomb = 100
Micro coulomb = 100 × 10^-6 = 10^-4 coulomb
Which force can either repel or attract objects?
O A. Gravitational
O B. Weak nuclear
C. Strong nuclear
D. Electromagnetic
Answers
Answer:
D. electromagnetic forces
Explanation:
Hope this helped :)
Brainliest plzz
Consider a projectile. Which of the following describes y-motion? Check all that apply.
1. The y motion is a vertical motion.
2. The y motion is a horizontal motion
3. A projectile covers different distances per second in the direction.
4. A projectile covers equal distance per second in this direction
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Answer:
1. True - gravity affects the y motion
2. False - x-coordinates affect the horizontal motion
3. y because gravity affects motion in the y-direction
4. x generally no external forces act in the x direction and hence no acceleration in the x direction
What are the forces of nature that creates electromagnetism
Answers
Answer:
the electric force and the magnetic force.
What is the output voltage?
Answers
Answer:
120 volts
Explanation:
The output voltage is the voltage released by a device, such as a voltage regulator or a generator. Voltage regulators maintain constant voltage levels. A conductor carries the output voltage to various destinations, such as homes and businesses.
Un avión despega a las 2:00 p.M en un vuelo de 2500 millas. El avión llega a su destino a las 7:30 p.M. Explicar por qué hay el menos dos momentos durante el vuelo en los que la velocidad del avión es de 400 millas por hora.
Answers
Answer:
Por lo tanto, cuando la velocidad promedio del avión es mayor que la velocidad de vuelo posible dada, entonces es posible tener dos puntos durante el vuelo cuando la velocidad es la de la velocidad dada
Explanation:
La hora de despegue del avión, t₁ = 2:00 p.m.
La distancia del vuelo que viaja el avión = 2,500 millas
La hora de llegada del avión al destino, t₂ = 7:30 p.m.
El tiempo de vuelo, Δt = t₂ - t₁
Por lo tanto, Δt = 7:30 - 2:00 = 5 horas 30 minutos = 5,5 horas
La velocidad media del avión,[tex]v_{ave}[/tex] = (Distancia total) / (Tiempo total)
= 2,500 millas / (5,5 horas) = 454. millas por hora
La velocidad promedio se puede encontrar también sumando velocidades individuales y dividiendo el resultado por el número de velocidades sumadas en la suma
Por ejemplo, tenemos;
∴ [tex]v_{ave}[/tex] = (v₁ + v₂ + v₃ )/3
Si durante el vuelo horizontal directo, la velocidad máxima, v₃ = 509 millas por hora, y v₁ y v₂ son puntos donde el avión se mueve en ángulo con la horizontal y, por lo tanto, velocidad horizontal reducida, entonces tenemos;
En el camino hacia arriba sobre una nube con velocidad horizontal v₁
454.[tex]\overline{54}[/tex] = (v₁ + 509)/2
2 × 454.[tex]\overline{54}[/tex] - 509 = 400.[tex]\overline{09}[/tex] = v₁
∴ v₁ = 400.[tex]\overline{09}[/tex] mph ≈ 400 mph
De manera similar, en el camino de regreso a la elevación del vuelo, tenemos v₂ = 400.[tex]\overline{09}[/tex] mph ≈ 400 mph
Por lo tanto, cuando la velocidad promedio del avión es mayor que la velocidad de vuelo posible dada, entonces es posible tener dos puntos durante el vuelo cuando la velocidad es la de la velocidad dada.
how is the flow of air important in designing the shape of a car?
Answers
Answer:
Explanation:
The more aerodynamic a vehicle is the less wind resistance there is meaning there is better gas mileage because it dont have to push so hard against wind and it also helps with the eye appeal
4. Someone took the last cookie in the cookie jar last night. The LAST
person to leave this scene is the culprit. Who was it? (see below)
O
A. The cook with the motor cycle
B. The maid with the car
O
C. The handyman with the bike
D. The nephew and the dog
What’s the answer
Answers
Answer:
I think B is the answer
Explanation:
I think this cause a maid always cleans the house and might be awake at night
Which of the following is a learned behavior of a cat
A. Meowing
B. Drinking water
C. Purring when happy
D. Using a litter box
Answers
The answer is D
7. Explain what happens to the volume of a sphere when the radius is tripled?
ANYONE PLS ASAPPPPPPP
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[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the concept of surface areas and Volumes.
When the radius is 'r', we get as,
V = 4/3*(π)(r^3)
when the radius is tripled that is '3r' , we get as,
V' = 4/3 (π)(3r)^3
V' = 27*(4/3(π)(r^3))
V' = 27 V
hence the new volume, when radius is tripled, is 27 times greater than the old sphere.
Displacement is used to measure
A.
weight
B.
mass
C.
distance
D.
volume
Answers
Answer:
D. Volume
Hope this helped <3
Research shows that continents move at an average rate of 2.3 cm per
year. Which two theories could be supported by this evidence?
Raisin theory
Expanding Earth theory
Contracting Earth theory
Theory of continental drift
SUBMIT
Answers
theory of continetal drift sumbit
Complete the following sentence.
The Richter scale is used to compare the
_____ of earthquakes.
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Answer:
magnitude
Explanation:
The Richter scale compares the magnitude or energy of earthquakes
Is it possible to get more work out of a machine then you put in yes or no?
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Answer:
i think its possible yes
Explanation:
how does Lightning occur
Answers
I hope this helped!
The Earth orbits the Sun because of the competing forces of _________________ and _______________________.
Answers
PLEASE HELPPP! :))))
Answers
Answer:
Jupiter Neptune moon Uranus
Explanation: