12. A dragster accelerates to a speed of 112 m/s over a distance of 398 m. Determine the acceleration
(assume uniform) of the dragster.
A car is moving with a constant speed of 15 meters per second. What total
distance does the car travel in 90 seconds?
Answer:
1350 meters
Explanation:
this is easy
15 meters per second
90 seconds
90 * 15 = 1350
Freezing point is a ____________________ property.
chemical
physical
The the weight of an object is the same as the mass of an object
h=height
mass
height
Potential Energy
1.23 kg
3.4 m
4.3 m
98.61 Joules
150.45 Joules
3.45 kg
202.94 Joules
6.2 kg
7.1 kg
3.56 m
if his potential energy is 98.61 joules and his height is 4.3m what is his mass?
Answer:
m = 2.34 kg
Explanation:
The given data shows the relation between the potential energy and the height of an object. The formula for the potential energy is given by :
E = mgh
g is the acceleration due to gravity
We have,
E = 98.61 J, h = 4.3 m
Putting all the values to find m. So,
[tex]m=\dfrac{E}{gh}\\\\m=\dfrac{98.61}{9.8\times 4.3}\\\\m=2.34\ kg[/tex]
So, the mass of the object is 2.34 kg.
state the effect of momentarily touching the conductor with a finger while the charged rod is still near the conductor
[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]
state the effect of momentarily touching the conductor with a finger while the charged rod is still near the conductor
If Im Mistaken it Changes Access[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]
If you have an insulator that's charged up with a negative charge, and you touch a conductor, the negatively charged excess electrons will move to the conductor until the electrons would rather not move anywhere at all. When this happens, we say that the system has reached equilibrium
[tex]\small\color{blue}{⊱─━━━━━━━━━⊱༻●༺⊰━━━━━━━━━─⊰}[/tex]
-PoliteCat
#CarryLearning
[tex]\large\boxed{\text{Together We Go Far!}}[/tex]
Elena failed her algebra exam and blames her teacher for teaching the concepts poorly. How would attribution theory explain Elena's behavior?
A. Elena is using situational attribution because she is blaming events that were outside of her control.
B. Elena is using internal attribution because she is blaming events that were within her own control.
C. Elena is making a dispositional attribution because she is assigning her teacher's behavior to her character.
D. Elena is making a fundamental attribution error because she is underestimating her own influence on the situation.
Answer: From What i Seeing it is Option B
If an object is not accelerating, it can exist in what 2 other states of motion?
Answer:
Friction is a force that acts in a direction opposite to the motion of the moving object.
Friction will cause a moving object to slow down and finally stop.
Name the angle between the refracted ray and the normal at the point of refraction,
Answer:
hiiiiiiiiiiiiiiiiii
mm
Answer:
It is called the angle of refraction
How is vibrational motion connected to waves?
Answer:
Explanation:
Waves and wave functions are direct ways to graph vibrational motion. Specifically, for cases dealing with vibrating strings. If you were to move a tensioned string up and down with your arm, you would produce a wave with a given frequency, period, and amplitude.
Two friends are each driving a car down Highway 101. During a particular 10 s interval, Jodi's car moves at a constant 60 mph. During that same time interval, Julie's car transitions from a speed of 20 mph to a speed of 30 mph. Whose car has the greater acceleration?
Answer:
Julie's car.
Explanation:
The acceleration of an object is equal to the rate of change of velocity. It can be given by :
[tex]a=\dfrac{v-u}{t}[/tex]
Jodi's car moves at a constant 60 mph for 10 s.
Julie's car transitions from a speed of 20 mph to a speed of 30 mph for the same time interval i.e. 10 s.
For Jodi's car, the change in velocity is equal to 0. As a result, its acceleration is equal to 0 m/s².
For Julie's car,
Initial speed, u = 20 mph = 8.9408 m/s
Final speed, v = 30 mph = 13.4112 m/s
Acceleration,
[tex]a=\dfrac{13.4112-8.9408}{10}\\\\a=0.447\ m/s^2[/tex]
It is clear that Julie's car has the greater acceleration than the Jodi's car.
Please help I’ll name you brainliest and give five stars please
Answer:
i think its 10 or 11 not sure though if its wrong im sorry im trying to help
Explanation:
Con el propósito de controlar las variables que influyen en la caída libre se provoca el vacío en la sala de un laboratorio. Si se dejan caer tres esferas, una de plomo, otra de aluminio y la última de plumavit, ¿en qué orden caerán las esferas si son soltadas desde una altura de 5 m?
Answer:
El plomo, el aluminio y la plumavit caerán al mismo tiempo.
Explanation:
En cinemática, la caída libre es un movimiento dónde solamente influye la gravedad. En este movimiento se desprecia el rozamiento del cuerpo con el aire, es decir, se estudia en el vacío.
La caída libre es un movimiento uniformemente acelerado de un cuerpo dónde solamente influye la gravedad y se estudia en el vacío, es decir, se debe despreciar el rozamiento del cuerpo con el aire. Entonces a este movimiento se denomina caída libre ideal. Y en esas condiciones, la aceleración que adquiriría el cuerpo sería debida exclusivamente a la gravedad, siendo independiente de su masa.
Entonces, el plomo, el aluminio y la plumavit caerán al mismo tiempo ya que adquirirían la misma aceleración, g, que es la aceleración de la gravedad.
Tell some types of light rays?
Answer: microwaves, infrared light, ultraviolet light, X-rays and gamma-rays
Hopes this helps!
Red light
Orange light
Green light
Violet light
Laser light
Bright light
Dim light
Sun light
Find the formula for terminal velocity and define each of the variables in the equation.
When the object falls through a viscous fluid with terminal velocity the total downward force becomes equal to total upward force
[tex]\\ \rm\rightarrowtail mg=U+F_v[/tex]
[tex]\\ \rm\rightarrowtail mg=m_1g+6\pi \eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail (m-m_1)g=6\pi \eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail v\rho g=6\pi \eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail \dfrac{4}{3}\pi r^3(\rho-\sigma)g=6\pi\eta rv_T[/tex]
[tex]\\ \rm\rightarrowtail v_T=\dfrac{4gr^2(\rho-\sigma)}{18\eta}[/tex]
[tex]\\ \rm\rightarrowtail v_T=\dfrac{2}{9}\dfrac{gr^2(\rho-\sigma)}{\eta}[/tex]
[tex]\eta[/tex] is viscosityr is radius of tubev_T is terminal velocitym is mass[tex]\rho [/tex]is density of object[tex]\sigma[/tex] is density of fluidg is acceleration due to gravityJeff found the key to exit the tower and wanted to give it to Rapunzel. If her hand is 200m above the ground, what is the required velocity for Jeff to toss the key to reach her in m/s?
Answer:
10M/S
Explanation:
DUE TO GRAVITY
An object moves away from the earth. Consider system A: the object alone, and system B: the object and the earth together. The potential energy for system A _____ and the potential energy for system B _____. Group of answer choices increases, (there is no potential energy for system B) increases, increases (there is no potential energy for system A), increases decreases, (there is no potential energy for system B) (there is no potential energy for system A), decreases decreases, decreases increases, decreases decreases, increases
Answer:
1(B) 2(c)
Explanation:
A +2.0-nC point charge is placed at one corner of a square (1.5 m on a side), and a -3.0-nC charge is placed on a corner diagonally away from the first charge. What is the magnitude of the electric field at either of the two unoccupied corners? *
With the charges of the square as +2.0-nC point charge and -3.0-nC point charge, The magnitude of the electric field is mathematically given as
Et= 14.42 N/c
What is the magnitude of the electric field at either of the two unoccupied corners?Question Parameters:
A +2.0-nC point charge is placed at one corner of a square (1.5 m on a side), and a -3.0-nC charge
Generally, the equation for the electric field is mathematically given as
E = k*q1/a^2
Therefore
E1= 9*10^9*2*10^-9/1.5^2
E1= 8 N/c
For E2
E2= 9*10^9*3*10^-9/1.5^2
E2= 12 N/c
In conclusion, The magnitude of the electric field at either of the two unoccupied corners
[tex]Et = \sqrt{E1^2 + E2^2}[/tex]
Et= 14.42 N/c
Read more about Electric field
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This table shows the weights of four different objects that are sitting on the floor. A person tries to lift each object with a force of 18 N, upward. Which
statement is supported by the data in the table?
Answer: A
Explanation:
The guy above me was right
Motion is caused by the forces acting on a body. A body will move in the direction of in which the net force is greater. Therefore, objects 1 and 2 will not move but 3 and 4 will accelerate upward.
From the table ; the upward force of 18N is lesser than the force maintained by the objects at rest. Hence, objects 1 and 2 will not move.
However, objects 3 and 4 have forces 16N and 8N respectively which are lesser than the upward force, hence, the body will move upward since the upward force is greater.
Therefore, objects 1 and 2 will not move but 3 and 4 will accelerate upward.
Learn more :https://brainly.com/question/20382231
Which object has the most thermal energy?
Answer:
Matter in its gas state has the most thermal energy than when it is a solid or a liquid. Because gasses have more thermal energy than others, they move differently than others.
Explanation:
;P
A rolling desk chair has a mass of 8 kg and an initial velocity of 6 m/s. The chair is given an acceleration of 12 m/s² for 3s.
What is the magnitude of the net force on the chair during acceleration?
96 N
48 N
144 N
288 N
Work is the application of force to move an object. It is proportional to both the force applied to the object and the distance it moves.
Net force = 96 N.
What is the relationship between work force and distance?Work is the application of force to move an object. It is proportional to both the force applied to the object and the distance it moves. This equation can be used to calculate work: Work = Force x Distance.The work done by a force of constant magnitude working in the strict direction of the object's velocity (however that changes) is magnitude of force times distance travelled.Positive Work : If a force moves an object in its direction, the work done is positive.Negative Work: Work is said to be negative if the force and displacement are in opposite directions.Mass m = 8 kg
Initial velocity = 6 m/s
Acceleration a = 12 m/s²
Time = 3 s
v = u + at
v = 6 + (12)(3)
v = 42 m/s
Work done = (1/2)(8)(42² - 6²)
Work done = 6,912
s = ut + (1/2)(a)(t)²
s = (6)(3) + (1/2)(12)(3)²
s = 18 + 54
Displacement (s) = 72 m
Net force = Work done / Displacement
Net force = 6,912 / 72
Net force = 96 N
To learn more about : Work done
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a particular eco solar system has five planets in total a b c d and e the table lists the orbital periods of these planets in days
will mark brainliest !!!
Kepler's Law (3)
T² ≈ r³
The square of the orbital period ≈ the cube the distance to the sun
The farther away the planet is, the bigger the radius, the bigger the period
PHYSICAL SCIENCE
—
WILL GIVE BRAINLIEST IF CORRECT
A powered winch is used to pull a sailboat to shore. The winch uses a 900 W motor.
If the motor is used for 30s, how much work does it do? (Power: P = W/t)
A. 0.03 J
B. 30 J
C. 960 J
D. 27,000 J
Answer:
Option D
Explanation:
Taking 2020 unit test for edu right now.
A block of solid copper sits on a flat, level table. Copper has a density of 8. 94 ✕ 103 kg/m3. The mass of the block is 20. 4 kg
For a block of solid copper sits on a flat, level table. Copper has a density of 8. 94 ✕ 103 kg/m3, the volume of the block is mathematically given as
V = 2.28x10^3
What is the volume of the block (in m3)?Generally, the equation for the volume of the block is mathematically given as
V = m/p
V = 20.4/8.94x10^3
V = 0.00228
V = 2.28x10^3
In conclusion, the volume of the block is
V = 2.28x10^3
Read more about volume
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Two technicians are discussing engine cleaning. Technician A says heads and engine blocks only need cleaned on the outside, since oil keeps the inside clean. Technician B says heads and blocks will need to be hot tanked, blasted or baked. Who is correct?a. Technicians A.b. Technicians B.c. Both Technicians A and B.d. Neither Technician A and B.
What does it mean to say that the electric current from a wall socket is 120 V AC
An Alaskan rescue plane traveling 41 m/s
drops a package of emergency rations from
a height of 165 m to a stranded party of explorers.
The acceleration of gravity is 9.8 m/s
2.What is the vertical component of the velocity
just before it hits? (Choose upward as the
positive vertical direction)
Answer in units of m/s.
Answer:
-56.9 m/s
Explanation:
Given:
Δy = -165 m
v₀ = 0 m/s
a = -9.8 m/s²
Find: v
v² = v₀² + 2aΔy
v² = (0 m/s)² + 2 (-9.8 m/s²) (-165 m)
v = -56.9 m/s
alcohol,monosodium glutamate (vetsin), water, fruit extract,sugar, coffe powder, salt, cow's milk, cocoa powder, liquid detergent. solute or both or solvent
Answer: solute: sugar, coffee powder, salt, cocoa powder, liquid detergent, monosodium glutamate (vetsin).
solvent: cow's milk, water, fruit extract
Explanation:
A solution is a mixture that is made up of two or more substances including solute and solvent.
The solute is one which can be dissolved in a liquid part that is solvent. The solute can be liquid or solid. Solutes are sugar, salt, coffee powder, cocoa powder, liquid detergent, monosodium glutamate.
The solvent is one which dissolves in it solute particles or molecules. Solvent are cow's milk, water, and fruit extract.
The center of the Hubble space telescope is 6940 km from Earth’s center. If the gravitational force between Earth and the telescope is 9. 21 × 104 N, and the mass of Earth is 5. 98 × 1024 kg, what is the mass of the telescope? Round the answer to the nearest whole number. Kg.
Answer:
Approximately [tex]11121\; {\rm kg}[/tex] (rounded to the nearest whole number as required, assuming that planet Earth is a uniform sphere.)
Explanation:
Let [tex]G[/tex] denote the gravitational constant. [tex]G \approx 6.6743 \times 10^{-11}\; {\rm N \cdot m^{2} \cdot kg^{-2}}[/tex].
Let [tex]M[/tex] denote the mass of planet Earth. Let [tex]m[/tex] denote the mass of the telescope. Let [tex]r[/tex] denote the distance between the telescope and the center of planet Earth.
Note the unit conversion for the distance [tex]r[/tex]:
[tex]\begin{aligned}r &= 6940 \; {\rm km} \times \frac{10^{3}\; {\rm m}}{1\; {\rm km}} \\ &= 6.940 \times 10^{6}\; {\rm m}\end{aligned}[/tex].
By Newton's Law of Universal Gravitation, the magnitude of the gravitational force between planet Earth and this telescope would be:
[tex]\begin{aligned}W &= \frac{G\, M\, m}{r^{2}}\end{aligned}[/tex].
Rearrange this equation to find the mass [tex]m[/tex] telescope in terms of [tex]G[/tex], [tex]M[/tex], and [tex]r[/tex]:
[tex]\begin{aligned}G\, M\, m &= W\, r^{2}\end{aligned}[/tex].
[tex]\begin{aligned}m &= \frac{W\, r^{2}}{G\, M}\end{aligned}[/tex].
Substitute in the value of [tex]G[/tex], [tex]M[/tex], and [tex]r[/tex]:
[tex]\begin{aligned}m &= \frac{W\, r^{2}}{G\, M} \\ &\approx \frac{9.21 \times 10^{4}\; {\rm N} \times (6.940 \times 10^{6}\; {\rm m})^{2}}{6.6743 \times 10^{-11}\; {\rm N \cdot m^{2} \cdot kg^{-2}} \times 5.98 \times 10^{24}\; {\rm kg}} \\ &\approx 11121\; {\rm kg}\end{aligned}[/tex].
Answer:
11,121 kg
Explanation:
will the value of g be affected by the radius of the earth? consider the real shape of the earth. compare the acceleration due to gravity for the freely falling object in the poles of the earth and other regions.
Answer:
Yes, the value of g affected by the radius.
Explanation:
The formula for the force of gravity of 2 objects is
[tex]F_{gravity} = G\frac{m_{1}m_{2}}{r^2}[/tex], where m1 and m2 are the masses of the 2 objects, r is the radius, and G is the gravitational constant, which is approximately [tex]6.67 \cdot 10^{-11}[/tex].
Therefore, as the radius if bigger, the force of gravity is going to be smaller exponentially.