Answers
Explanation:
1) velocity = displacement/time
time = displacement/velocity
time = 200/660
= 10/33
= 0.303
2) vf = vi - a*t
0 = 30 - 9.8*t
t = 30 ÷ 9.8
t = 3.06 seconds
Related Questions
7. The Voyager 1 space probe was launched in the 1970's and is now the furthest
man-made object from earth - it has actually left the solar system. At its current speed it
could travel across the US, a distance of about 4500 km in 265 seconds (a little less
than 5 minutes!) What is its average speed in kilometers per second?
Answers
hii! help asap. i’ll give brainliest thanks!
Answers
Which of ONE of the following four elements has the most metallic properties?
The atomic numbers of the elements are listed below.
12
14
16
17
Answers
Answer:
12 (Magnesium- Mg)
Explanation:
Looking at the four numbers, we have:
Magnesium, Silicon, Sulfur, and Chlorine.
We can eliminate two of the answers immediately just by looking at the periodic table.
Sulfur and Chlorine are on the nonmetal side of the periodic table. So that's definitely not it. That leaves Magnesium and Silicon.
Silicon is a Metalloid. Magnesium is an Alkaline earth Metal.
Metaloids are elements that have a mix of both metal and nonmetal properties (luster, how it feels, etc.). Since it's a MIX and Magnesium is just straight METAL-
We can say Magnesium has the most metallic properties.
hope this helps!!
11. 2 cm of rain falls in 10 minutes. The rain fall
steady at the rate of 20 m/s. The average
pressure on ground if rain drops comes to rest
after impact is
(a) 0.067 N/m^2
(b) 0.67 N/m^2
(c) 6.7 N/m^2
(d) 67 N/m^2
Answers
Answer:
WP LA æ WI all all Eduardo whatever Cincinnati quips I was just wondering if you want to be a good day
I WILL MARK YOU THE BRAINLIEST NO LINKS
The weight of the fluid that an object displaces is equal to the buoyant force acting on the object is
spring force
Archimedes Principle
buoyant force
Hooke's Law
Answers
Answer:
Archimedes' Principle
Explanation:
Its because Archimedes' Principle states "that the buoyant force on an object is equal to the weight of the fluid displaced by the object.... If you want to know the buoyant force on an object, you only need to determine the weight of the fluid displaced by the object."
What are three other types of new batteries that are being created today? (PLEASE DO NOT GIVE ME ANY LINK, JUST TYPE YOU ANSWER)
Answers
Answer:
Duracell
Amazon Basics 2 Pack CR1616 3 Volt Lithium Coin Cell Battery.
LiCB 20 Pack LR44 AG13 357 303 SR44 Battery 1.5V Button Coin Cell Batteries.
Explanation:
Hope this helps and have a nice day!
A disadvantage of a _____
telescope is that you need very large lenses.
A. refracting
B. reflecting
Answers
Two like charges are either both ______ or both _______
Answers
Answer:
negative or posotive i think
Explanation:
The speed of a wave with a frequency of 2 Hz (2/s), an amplitude of 3 m, and a wavelength of 10 m is
options:
0.2 m/s.
12 m/s.
5 m/s.
20 m/s.
Answers
Answer:
5 m/s
Explanation:
your welcome
The speed of a wave equals to Wavelength and Frequency. The SI unit of speed of wave is m/s. Thus, option D is correct.
What is speed of wave?The speed of wave is distance travelled by the wave in given time. It is related to both wavelength and frequency. Wavelength is measured in meters and frequency in hertz.
From the givens:
Frequency(f) = 2 Hz.
Wavelength(λ) = 10m.
Amplitude = 3m ( Amplitude does not affect the speed of wave)
Speed (v) = λ × f
= 10 × 2
= 20 m/s.
Therefore, the speed of the wave is 20 m/s. Hence, Option D is correct.
To learn more about speed of waves :
https://brainly.com/question/10715783
#SPJ3
What was discovered about the age of the ocean floor?
A. The youngest rocks are along the coast of the Atlantic Ocean.
B. As you move away from the edge of the continents, the rocks get older.
C. As you move away from the Mid-Atlantic Ridge, the rocks get younger.
D. The youngest rocks are at the Mid-Atlantic Ridge.
Answers
Answer:
i think it's c
Explanation:
Answer: D. the youngest rocks are at the mid-atlantic ridge.
Explanation: The people who commented on the other question are right.
I'm contrast to Venus the coldest temperature yet measured on the surface of any body in the solar system is -235C
Answers
Answer:
Explanation:
I don't get what the relation here is. Venus is the hottest planet in our solar system. And yes, it's hotter than mercury despite mercury being closer to the sun. And your question talks about the coldest temperature measured which is -235 degrees Celsius. That surely isn't measured on Venus. I'm only wondering what Venus has got to go with cold and what exactly your question is
what is the relationship between the voltage across the energy
source and the voltages across the lamps in parallel
Answers
Answer:
وؤتي يتنييوتينستصميوخصز ءتث. ثنصطث
A +6.33 uC charge q1 is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. What is the value of q2?
Answers
Answer:-4.1858
Explanation: I hate Acellus
If A +6.33 μC charge q₁ is attracted by a force of 0.115 N to a second charge q2 that is 1.44 m away. then the value of q₂ = 4.23 μC.
What is coulomb's law ?Electrostatic force is a force of attraction or repulsion between two unlike or like charges respectively. when like charges come closer to each other, they gets repel by one another and it gets attracted for unlike charges. Force of attraction or repulsion between two point charges are given by coulomb's law. The force of attraction between two charges are given by coulomb's law.
the law states that the force of attraction or repulsion between two point charges is directly proportional to product of magnitude of both the charge and inversely proportional to square of the distance between them.
i.e. F ∝ q₁q₂
F ∝ 1/r²
F ∝ q₁q₂/r²
F = kq₁q₂/r²
where k is proportionality constant k = 1/4π∈₀ = 8.9×10⁹
In this problem,
Given,
q₁ = 6.33×10⁻⁶ C
F = 0.115N
r = 1.44m
q₂ = ?
putting this values in the equation,
0.115 = 8.9×10⁹×6.33×10⁻⁶ ×q₂÷1.44²
q₂ = 4.23 μC.
To know more about charge :
https://brainly.com/question/3412043
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You don't need to push off with a foot against the ground to start
a skateboard rolling down a bank. Does this violate Newton's
first law of motion? Why or why not?
Answers
Answer:
No, it does not violate Newton's first law
Explanation:
Newton's first law of motion states that, "A body will continue in its state of rest or uniform motion in a straight unless acted up by a force to make it act otherwise" This means a force is required to initiate movement and also required to halt it.
For a skate positioned to roll down a bank, Here, the force of gravity acting on the skate acting downward will make the skate roll without having to push off the skate with a foot. Because the position of the skate doesn't balance the Gravitational force acting on it. Hence. The Gravitational force is enough to set the skate in motion.
Two point charges are separated by a distance of 1 meter. How much would the force change if one charge was 4x larger?
Answers
Answer:
the force would increase 4 times more
Explanation
more force results more mass or acceleration
Answer:
it would grow by 4x
Explanation:
A 1.5 kg object is hanging from a spring with a spring constant of 15 N/m on Earth. What is the period of its up-and-down motion?
1.) 0.10 s
2.) 0.31 s
3.) 2.0 s
4.) 2.5 s
Answers
Answer: 3) 2.0
Explanation: I guessed and got it right on my assignment :)
I feel dvmb for asking this question but... help? Please?
Answers
Force, it can speed up or slow down an object which can change the direction in which an object is moving.
2. A loop of wire of area 0.7 m is moving into a 0.9 T magnetic field. If it takes 5
seconds for the loop to move from completely outside the field to completely inside the
field, what emf is produced?
Answers
Answer:
fem = -0.126 V
Explanation:
Faraday's law is
fem = [tex]- \frac{d \phi}{dt}[/tex]
where the flow is
Ф = B . A = B A cos θ
bold letters indicate vectors.
In this case, the normal to the area is parallel to the magnetic field, so the angle is zero and the cos0 = 1
fem = [tex]- A \ \frac{dB}{dt}[/tex]
in this case they indicate that to carry the loop from outside to inside the field in Δt = 5 s, so we can change them by variations
fem = [tex]- A \frac{\Delta B}{\Delta t}[/tex]
let's calculate
fem = - 0.7 (0.9 -0) / 5
fem = -0.126 V
What is one way to store a lot of potential energy in the field between two charged objects?
Answers
Answer:
Explanation:
Two charged particles will vary in energy as we alter the distance between them.
A transformer has 100 turns on primary coil and 300 turn on secondary coil. If 20V Ac is applied to the primary coil, what would be the secondary voltage?
Answers
Answer:
the secondary voltage is 60 V.
Explanation:
Given;
number of turns on the primary coil, Np = 100 turns
number of turns on the secondary coil, Ns = 300 turns
voltage supply in the primary coil, Vp = 20 V
let the secondary voltage = Vs
Apply the following transformer equation to determine the secondary voltage;
[tex]\frac{V_s}{V_p} =\frac{N_s}{N_p} \\\\V_s = \frac{V_p \times N_s}{N_p}\\\\V_s = \frac{20 \times 300}{100} \\\\V_s = 60 \ V[/tex]
Therefore, the secondary voltage is 60 V.
THIS IS MY EXAM HURRY PLS
Which is a way that the elements are grouped on the periodic table? (2 points) a Elements in the same row have the same number of protons. b Elements with similar bonding properties are in the same column. c Elements in the same column have the same number of neutrons. d Elements with similar mass are placed in the same column.
Answers
Answer:
elements in the same column have the same number of neutrons. elements with similar mass are placed in the same column.
A converging lens forms an image at 43 cm. A 9 cm tall object is placed in front of the lens at a distance of 90 cm.
Determine the magnifying power of the lens
Answers
A certain circuit is composed of two series resistors. The total resistance is 10kΩ. One of the resistors is 2 kΩ. The other resistor value is
Answers
Answer:
8kΩ.
Explanation:
10kΩ. - 2kΩ. = 8kΩ.
To celebrate her upcoming graduation Keysi books a trip on a space party-boat that travels at 99% the speed of light. She tells her mom she'll be "right back" and goes for a 3 day trip around the solar system. If the clocks on her space ship read 3 days, how many days does her mom wait for her to return? *
5 days
9 days
12 days
15 days
21 days
25 days
Answers
Why is the loss of mass of the object only an apparent loss?
Answers
Answer:
archimides princile
Explanation:
Archimede's principle states that when a body is immersed partly or wholly in a liquid, there is an apparent loss in the weight of the body which is equal to the weight of the liquid displaced by the body.
Answer:
archimides
Explanation:
does anyone know what the answers are?
Answers
Answer:
Option (C) is the answer
Explanation:
may be it is possible if that we stand so far
The following three resistors (Ohms) are in parallel with one voltage source. What is the voltage running through the C resistor?
Battery 8
Resistor A 7
Resistor B 6
Resistor C 6
Answers
Answer:
If the resistors are connected in parallel and the battery voltage is 8V, then voltage across resistor C is 8V.
Sarah goes 36km west then 46km east
what is the displacement
Answers
Answer:
10km
Explicacion:
the potential difference across two plates is 1.50 V. if the plates are 8.22*10^-4 m apart, what is the electric field between them?
Answers
Answer: 1820
Explanation:
acellus
What is force. in your own words
Answers
Answer:
force is a push or pull that exerted on a body
Answer:
force is that push or pull on a body that changes or tends to change the state of rest or of uniform motion in a straight line.
Explanation:
hope this helps