Answer:
10m/s
Explanation:
How much air resistance acts on a 100-N bag of nails that falls at its terminal speed?
pics pls you know what I mean
boiiii I wont show you nun
Two persons A and B are walking with speed 5 km/h and 6 km/h
respectively in the same direction. Find how far will B be from A after
2 hours.
a 6 km
b 2 km
C 5 km
d 3 km
Answer:
b
Explanation:
The relative distance can calculate by dividing the time travelled by the speed difference between points A and B. Considering that B is going more quickly than A, we substract A's speed from B's speed.
Relative Speed = Speed of B - Speed of A
Relative Speed = 6 km/h - 5 km/h
Relative Speed = 1 km/h
Now, we can calculate the relative distance traveled by B after 2 hours:
Relative Distance = Relative Speed * Time
Relative Distance = 1 km/h * 2 hours
Relative Distance = 2 km
Therefore, B will be 2 kilometers away from A after 2 hours of walking in the same direction.
Learn more about relative speed here:
https://brainly.com/question/14362959
#SPJ2
Martina travels from her house to her moms office building, From there she walks to school. After school, she walks to the library and then to a friends house before finally ending back at home. Fine Martina's totoal distance traveld
Answer:
2.15miles
Explanation:
The total distance traveled by Martina is the sum of the length of path of her travel. Distance is a scalar which has only magnitude but no directional attribute.
Total distance = Office - school + school - library + library - friend's house + friend's house - house
Now insert the given parameters:
Total distance = 1mile + 0.5mile + 0.25mile + 0.4mile = 2.15miles
Total distance is 2.15miles
I’ll give another brainlist now your going up a hill and want to maximize the force you deliver to the wheel you aren’t concerned with how many strokes you are making but you want to get as much force to the wheel as possible which gear combination would you use now and why
Answer: The biggest gear
Explanation:
Small gears allow the fastest speed but least amount of power, all the while, the bigger the gear the more power is going to be present.
If this isn't enough I already completed this assignment.
Cystic fibrosis is a disease that
A. causes all those infected to live only into their teen years
B. makes it difficult to breathe
C. can be cured with proper medication
D. occurs most frequently people of Asian descent
Please select the best answer from the choices provided.
Ο Α
B
Answer:
B
Explanation:
can someone help with just question 1 :)
If you run a complete loop around an outdoor track of length 400 m in 100 s, find your(a) average velocity and (b) average speed. *
Answer:
a) 0 m/s
b) 4 m/s
Explanation:
The average velocity would end up being 0 because it is displacement over time and the displacement here is 0. However, speed is total distance over time which here is 400/100 so it is 4.
A 0.5 Kg block of ice at -20 °C was given 10,000 J of heat. Would this block of ice melt?
Answer:
I say maybe bc it has to depend on the heat of the ice environment
Explanation:
A scooter has a mass of 250 kg. A constant force is exerted on it for 60.0 s. During the time the force is exerted, the scooter increases its speed from 0.00 m/s to 28.0 m/s. What is the magnitude of the force exerted on the scooter?
Answer:
5500
Explanation:
I cant explain it but when i asked my teacher thats what he told me
What are the three types of mechanical waves?
A. Water
B. Circular
C.longitudinal
D. Surface
E. Transverse
F. Sound
Answer:
I'm sure its transverse, longitudinal and surface
Explanation:
sorry if I'm wrong
How long will it take a horse to go from rest to 19 km/hr if it is accelerating at 5
km/hr 2 ?
Answer:
I attached a PFD with the answer to your question and roughly 50 others involving acceleration and how to calculate it. This PDF gives you the answers to all the question whilst showing you an in-depth explanation on how they got the answer. Hopefully that helps
Explanation:
May I have brainliest please? :)
Type the correct answer in the box. Spell the word correctly.
Read the sentence and type the correct answer in the box.
The Lambda-CDM model contains a cosmological constant, denoted by a lambda (λ) which is associated with dark energy and ___________.
Answer:
The Lambda-CDM model contains a cosmological constant, denoted by a lambda (λ), which is associated with dark energy and cold dark matter.
^Also works for Plato users.
Answer:
"cold dark matter"
Explanation:
other person is correct!!!
Freud believed that. Felt inferior to. And that they were more vulnerable to psychological disorders
Answer:
women... men
Explanation:
Answer:
c. women... men
Explanation:
edge 2021
PLS HELP!!
What do you think is happening to a brick’s potential energy as it is falling? Why do you think that?
Answer:
As an object falls from rest, its gravitational potential energy is converted to kinetic energy.
Explanation:
It converts to kinetic energy because it is moving
If a thermometer reads 52° F, what is the temperature in Celsius?
8.5 ° C
18.73 ° C
11.11 ° C
72.25 ° C
Answer:
11.11 C
Explanation:
(52 f-32) * 5/9= 11.11
Answer:
sheeeeshhh
Explanation:
8.5 i took test
A ships initial position is 25 km east of the origin. What is the ship’s final position if it sails at a constant velocity of 42 km/h east in exactly 1.5 h? (Note: answer in km)
Answer:
88km E
Explanation:
25 km is added already
then if we take the formula of speed(V)
V=d/t
and rearrange it to subject d (distance)
d= V x t
we get
d= 42km/h x 1.5hrs
we get
63 km
now if we add the already travelled 25 km to this additional distance
63km + 25km = 88km
Thus the final distance traversed by the ship from its origin is
88km E
Plz mark me brainliest
Hope this helps
.. An object has a mass of 40 000 kilograms
and a volume of 5 cubic metres. What is its
density?
Answer:
8000 kg/cm^3
Explanation:
The density formula is P = M/V
Density = P = ? expressed in kg/m^3
M = mass = 40,000 kg
V = volume = 5 m^3
P = 40,000/5
P = 8000 kg/m^3
A plant was placed in the corner of a room away from a window. What might you observe about the plant after five days?
Select one:
1 The plant is not effected by the light in the window
2 The plant is standing straight up from the pot
3 The plant is leaning away from the window
4 The plant is leaning towards the window
Answer:
4 the plant is leaning towards the window
Explanation:
that is due to the plant inhabit to grow towards the sunlight so the plants tries its best to get the sunlight by doing so and growing
100 POINTS!!! :D
Write a scientific explanation that describes the interaction between the two skaters caused by the forces that they apply to each other.
Explanation:
... in every interaction, there is a pair of forces acting on the two interacting objects. The size of the force on the first object equals the size of the force on the second object. The direction of the force on the first object is opposite to the direction of the force on the second object. Forces always come in pairs - equal and opposite action-reaction force pairs.
Where does digestion begin?
Answer:
Digestion begins in the mouth, when you chew.
The amount of sun’s energy that hits an area helps determine the climate of that area. The Brazilian Rainforest has a tropical climate that averages of up to 300 mm of rain during some months. Which of the following best describes the role of the water cycle in determining the rainforest’s weather?
A. Cool temperatures of the moist ground cause evaporation, then increased temperatures of the atmosphere form rain.
B. Hot temperatures causes the condensation and precipitation of water in rivers and streams.
C. Hot temperatures cause water to evaporate from rivers, then cooler temperatures of the upper atmosphere cause water vapor to change to precipitation.
D. Cool air near the rainforest floor causes liquid water to change to water vapor, then condensate to form precipitation.
Answer:
Cool temperatures of the moist ground cause evaporation, then increased temperatures of the atmosphere form rain.
Explanation:
The amount of sun’s energy that hits an area helps determine the climate of that area. The Brazilian Rainforest has a tropical climate that averages of up to 300 mm of rain during some months. Which of the following best describes the role of the water cycle in determining the rainforest’s weather?
what is convection?
what is radiation ?
what conduction?
--ⓒᴄᴏɴᴠᴇᴄᴛɪᴏɴ ᴏᴄᴄᴜʀꜱ ᴡʜᴇɴ ᴘᴀʀᴛɪᴄʟᴇꜱ ᴡɪᴛʜ ᴀ ʟᴏᴛ ᴏꜰ ʜᴇᴀᴛ ᴇɴᴇʀɢʏ ɪɴ ᴀ ʟɪQᴜɪᴅ ᴏʀ ɢᴀꜱ ᴍᴏᴠᴇ ᴀɴᴅ ᴛᴀᴋᴇ ᴛʜᴇ ᴘʟᴀᴄᴇ ᴏꜰ ᴘᴀʀᴛɪᴄʟᴇꜱ ᴡɪᴛʜ ʟᴇꜱꜱ ʜᴇᴀᴛ ᴇɴᴇʀɢʏ. ... ʟɪQᴜɪᴅꜱ ᴀɴᴅ ɢᴀꜱᴇꜱ ᴇxᴘᴀɴᴅ ᴡʜᴇɴ ᴛʜᴇʏ ᴀʀᴇ ʜᴇᴀᴛᴇᴅ. ᴛʜɪꜱ ɪꜱ ʙᴇᴄᴀᴜꜱᴇ ᴛʜᴇ ᴘᴀʀᴛɪᴄʟᴇꜱ ɪɴ ʟɪQᴜɪᴅꜱ ᴀɴᴅ ɢᴀꜱᴇꜱ ᴍᴏᴠᴇ ꜰᴀꜱᴛᴇʀ ᴡʜᴇɴ ᴛʜᴇʏ ᴀʀᴇ ʜᴇᴀᴛᴇᴅ ᴛʜᴀɴ ᴛʜᴇʏ ᴅᴏ ᴡʜᴇɴ ᴛʜᴇʏ ᴀʀᴇ ᴄᴏʟᴅ.
--Ⓡʀᴀᴅɪᴀᴛɪᴏɴ ɪꜱ ᴇɴᴇʀɢʏ ᴛʜᴀᴛ ᴄᴏᴍᴇꜱ ꜰʀᴏᴍ ᴀ ꜱᴏᴜʀᴄᴇ ᴀɴᴅ ᴛʀᴀᴠᴇʟꜱ ᴛʜʀᴏᴜɢʜ ꜱᴘᴀᴄᴇ ᴀɴᴅ ᴍᴀʏ ʙᴇ ᴀʙʟᴇ ᴛᴏ ᴘᴇɴᴇᴛʀᴀᴛᴇ ᴠᴀʀɪᴏᴜꜱ ᴍᴀᴛᴇʀɪᴀʟꜱ. ... ᴛʜᴇ ᴋɪɴᴅꜱ ᴏꜰ ʀᴀᴅɪᴀᴛɪᴏɴ ᴀʀᴇ ᴇʟᴇᴄᴛʀᴏᴍᴀɢɴᴇᴛɪᴄ (ʟɪᴋᴇ ʟɪɢʜᴛ) ᴀɴᴅ ᴘᴀʀᴛɪᴄᴜʟᴀᴛᴇ (ɪ.ᴇ., ᴍᴀꜱꜱ ɢɪᴠᴇɴ ᴏꜰꜰ ᴡɪᴛʜ ᴛʜᴇ ᴇɴᴇʀɢʏ ᴏꜰ ᴍᴏᴛɪᴏɴ). ɢᴀᴍᴍᴀ ʀᴀᴅɪᴀᴛɪᴏɴ ᴀɴᴅ x ʀᴀʏꜱ ᴀʀᴇ ᴇxᴀᴍᴘʟᴇꜱ ᴏꜰ ᴇʟᴇᴄᴛʀᴏᴍᴀɢɴᴇᴛɪᴄ ʀᴀᴅɪᴀᴛɪᴏɴ
--Ⓒᴄᴏɴᴅᴜᴄᴛɪᴏɴ ɪꜱ ᴛʜᴇ ᴡᴀʏ ɪɴ ᴡʜɪᴄʜ ᴇɴᴇʀɢʏ ɪꜱ ᴛʀᴀɴꜱꜰᴇʀʀᴇᴅ (ᴛʜʀᴏᴜɢʜ ʜᴇᴀᴛɪɴɢ ʙʏ ᴄᴏɴᴛᴀᴄᴛ) ꜰʀᴏᴍ ᴀ ʜᴏᴛ ʙᴏᴅʏ ᴛᴏ ᴀ ᴄᴏᴏʟᴇʀ ᴏɴᴇ (ᴏʀ ꜰʀᴏᴍ ᴛʜᴇ ʜᴏᴛ ᴘᴀʀᴛ ᴏꜰ ᴀɴ ᴏʙᴊᴇᴄᴛ ᴛᴏ ᴀ ᴄᴏᴏʟᴇʀ ᴘᴀʀᴛ).
As the temperature decreases, the atoms lose energy. The atoms begin to move slower. They are held together by attractive forces, but are still able to slide past each other.
solid to liquid
liquid to solid
gas to liquid
gas to solid
gas to liquid is the answer
Answer:
C. gas to liquid
Explanation:
ed. 2021
A child is perched perilously above a 150m ravine. The child has a mass of 45kg. How much
gravitational potential energy does the child have?
Answer:
U = 66,150 J
Explanation:
Gravitational Potential Energy
Gravitational potential energy is the energy stored in an object because of its vertical position or height in a gravitational field.
It can be calculated with the equation:
U=m.g.h
Where m is the mass of the object, h is the height with respect to a fixed reference, and g is the acceleration of gravity or [tex]9.8\ m/s^2[/tex].
The child of mass m=45 Kg is perched above a h=150 m ravine. His gravitational potential energy is:
[tex]U=45~Kg\cdot 9.8\ m/s^2\cdot 150\ m[/tex]
U = 66,150 J
Express 2.69 x 10° in standard form.
Help!
Answer:
2.69
Explanation:
2.69 x 1
10^0 = 1
4. Una pila recargable de 1.2 V tiene una etiqueta que dice 1 800 mAh a) ¿Cuál es la máxima cantidad de carga que puede acumular? B) ¿Y la máxima cantidad de energía? C) ¿Serán exactas todas las cifras significativas que aparecen en el dato de la etiqueta? Respuesta: a) 6480c b)7.8 x 10^3 j o 7.8 kJ c)no NECESITO EL PROCEDIMIENTO
Answer:
a) La carga eléctrica máxima que puede acumular la pila recargable es 6480 coulombs.
b) La máxima cantidad de energía acumulada por la pila recargable es 7776 kilojoules.
c) No son exactas todas las cifras significativas que aparecen en el dato de la etiqueta.
Explanation:
a) La capacidad de la batería es la corriente constante suministrada por la batería durante su tiempo de servicio. En este caso, puesto que la batería tiene una capacidad de [tex]1800\,mAh[/tex], significa que la batería entrega una corriente de 1.8 amperios durante una hora. La máxima cantidad de carga es estimada por la siguiente expresión:
[tex]q = C\cdot \Delta t[/tex] (1)
Donde:
[tex]C[/tex] - Capacidad de la pila recargable, medida en amperios-hora.
[tex]\Delta t[/tex] - Tiempo de servicio, medido en horas.
[tex]q[/tex] - Carga eléctrica, medida en coulombs.
Si tenemos que [tex]C = 1.8\,A[/tex] y [tex]\Delta t = 3600\,s[/tex], entonces la máxima cantidad de energía que puede acumular es:
[tex]q = (1.8\,A)\cdot (3600\,s)[/tex]
[tex]q = 6480\,C[/tex]
La carga eléctrica máxima que puede acumular la pila recargable es 6480 coulombs.
b) La máxima cantidad de energía suministrada por la batería ([tex]E_{max}[/tex]), medida en joules, es definida por la siguiente expresión:
[tex]E_{max} = q\cdot V[/tex] (1)
[tex]E_{max} = (6480\,C)\cdot (1.2\,V)[/tex]
[tex]E_{max} = 7776\,J[/tex]
La máxima cantidad de energía acumulada por la pila recargable es 7776 kilojoules.
c) Sabemos que las unidades estándar del voltaje y la capacidad son el volt y el amperio-hora, respectivamente. Entonces, si asumimos que las cifras significativas quedan representadas por el número de decimales y que se considera razonable que haya una cifra significativa, entonces tenemos que cada variable es en formato de ingeniería:
[tex]C = 1.8 Ah[/tex] y [tex]V = 1.2\,V[/tex].
Al mutiplicarse cualquiera de estas cantidades por un número con una cifra significativa deja con un producto con dos cifras significativas. Por tanto, se pierde precisión al realizarse operaciones de multiplicación.
No son exactas todas las cifras significativas que aparecen en el dato de la etiqueta.
Calculate the normal force and force applied of a box that has a mass of
50kg and that is moving rightward with an acceleration of 7.2m/s^2
Heya!!
For calculate force, lets applicate second law of Newton:
[tex]\boxed{F=ma}[/tex]
Δ Being Δ
F = Force = ?
m = Mass = 50 kg
a = Aceleration = 7,2 m/s²
⇒ Let's replace according the formula:
[tex]\boxed{F= 50\ kg * 7,2 m/s^{2}}[/tex]
⇒ Resolving
[tex]\boxed{ F = 360\ N}[/tex]
Result:
The force is 360 Netwons.
Good Luck!!
A car traveling at a speed of 50.0 m/s encounters an emergency and comes to a complete stop. How much time will it take for the car to stop if it decelerates at -4.0 m/s2?
Answer:
t=1.25s
Explanation:
The formula is
a= (V1-V0) /t
t = (V1-V0)/a
V1=50m/s
V0= 0 m/s
a= - 4m/s2
t= (0-50)/-4 = 1.25s
Laura drives for 3 hours at 44 mph.
Clare drives 144 miles in 4 hours.
(a)
(b)
Who travels the greater distance?
Whose speed is the slower?
How far would Laura travel if she drove for 3 hours at the same speed
as Clare?
Answer: A) Clare B) Clare c) 108 miles
Explanation:
Step 1
For Laura
Time taken by Laura = 3hours
Speed = 44mphn
Distance covered = speed x time
= 44 X 3= 132 miles
For Clare
Distance covered =144 miles
time = 4 Hours
Speed = Distance / Time
144/ 4 =36 mph
Step 2
a) Who travels the greater distance= Clare travels at a greater distance of 144 miles.
b)Whose speed is the slower= Clare speed is slower with 36mph
c)How far would Laura travel if she drove for 3 hours at the same speed
as Clare?
if Laura's speed = Clare speed = 36mph
time = 3hours
Distance= Speed x time
= 36 mph x 3 hours
108miles