Answer:
19 cm
Explanation:
why can many ecosystems exit in one biome?
Answer:
Plants and animals that live in a biome must be able to live and reproduce in the conditions
Explanation:
Which of the following was not first proposed by Charles Darwin?
A. Natural selection
B. Genetic drift
C. Struggle for existence
D. Survival of the fittest
Answer:
C. Struggle for existence
Explanation:
Have a great day
20 A measure of the speed and direction of an object's motion
a. velocity
b. speed.
c. momentum
A saw blade, starting at rest, accelerates at 27 rad/s^2 for 5.0 seconds
a. What angular speed will the blade have at the end of the 5.0 seconds
b. If the blade continues at the speed that was reached in part a, through what angle will the blade have rotated in another 5.0 seconds
A bicycle has a momentum of 25.00 kg·m/s and a velocity of 2.5 m/s. What is the bicycle’smass?
Answer:
10 kg
Explanation:
p=ma
25=2.5m
m=25/2.5
m=10 kg
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The net force of a heavy, stationary box is?
Answer:
gravity
Explanation:
A motorboat is tied to a dock with its motor running. The spinning propeller makes a surface wave that moves at a speed of 400 cm/s with a wavelength of 100 cm. What is the wave’s frequency?
4 Hz
40 Hz
0.25 Hz
25 Hz
Answer:
The wave frequency is 0.25Hz .
Answer:
4 Hz
Explanation:
1. Speed = Wavelength x Wave Frequency can be changed to Frequency = Speed/Wavelength.
2. Speed (400) / Wavelength (100) = Frequency of 4 cm/s or 4 Hz.
Suppose A = B"Cm, where A has the dimensions LT, B has dimensions L²T-1, and C has dimensions LT2. Then the exponents n and have the values
Complete Question:
Suppose [tex]A = B^n C^m[/tex], where A has the dimensions LT, B has dimensions L²T⁻¹, and C has dimensions LT². Then the exponents n and m have the values
Answer:
The value of n = ¹/₅
The value of m = ³/₅
Explanation:
Given dimensions;
A = LT
B = L²T⁻¹
C = LT²
The values of n and m are calculated as follows;
[tex]LT = [L^2T^{-1}]^n[LT^2]^m\\\\L^1T^1 = [L^{2n}T^{-n}]\times [L^mT^{2m}]\\\\L^1 \times T^1 = [L^{(2n+m)}] \times [T^{(-n +2m)}]\\\\1 = 2n + m -----(1)\\\\1 = -n + 2m ----(2)\\\\from \ (1); \ m = 1-2n, \ \ substitute \ the \ value \ of \ m \ in\ (2)\\\\1= -n +2(1-2n)\\\\1 = -n + 2-4n\\\\1-2 = -5n\\\\-1 = -5n\\\\1= 5n\\\\n = \frac{1}{5} \\\\m = 1 - 2n\\\\m = 1 - 2(\frac{1}{5} )\\\\m = 1- \frac{2}{5} \\\\m = \frac{3}{5}[/tex]
Calculate the period of oscillation of a pendulum with a small amplitude whose length is 2.5 meters
Answer:
T = 3.17 s
Explanation:
Given that,
The length of the pendulum, l = 2.5 m
We know that the period of oscillation of the pendulum is given by :
[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]
Where
g is the acceleration due to gravity
[tex]T=2\pi \sqrt{\dfrac{2.5}{9.8}}\\\\T=3.17\ s[/tex]
So, the period of oscillation is equal to 3.17 s.
Four resistors , R1=12ohms, R2= 15 ohms , R3= 18 ohms and R4=10 ohms are connected to 6 v battery in series what is the total resistance in the circuit?
Answer:
55 ohms
Explanation:
if it was series circuit, then you just need to add all the resistances
In a free body diagram all the forces are depicted as pointing _______ the central box
Answer:
There are three forces acting upon the system - the gravity force (the Earth pulls down on the 15.0 kg of mass), the normal force (the floor pushes up on the system to support its weight), and the applied force (the hand is pushing on the back part of the system).
Explanation:
Answer:
what he said
Explanation:
what’s the answer ???
Answer:
i cant even see it
Explanation:
please go to my profile and answer the work and energy questions, i only have 20 minutes left to finish it
Answer:
Okay I'll do it right now
Explanation:
:)
Spherical mirror is a
Answer:
Spherical mirror is a mirror with a curved reflecting surface.
There are two spherical mirrors -
Concave andConvexConcave Mirror - A spherical mirror , whose reflecting surface is curved inwards , that is , faces towards the centre of the sphere , is called concave mirror.
Cnovex Mirror - A spherical mirror whose reflecting surface is cirved outwards is called convex mirror.
Explanation:
Points of difference :
The reflecting surface of the concave mirror is bulged inwards . But the reflecting surface of the convex mirror is bulged outwards.Concave mirror produces real and inverted images ( except when the object is placed between F and P , concave mirror produces virtual and erect image ) . But is convex mirror always produces virtual and erect images.The image formed by the concave mirror may be enlarged or diminished, according to the position of the object. The image formed by convex will be always diminished.A stretched wire under tension T Produces a note of frequency 60Hz
when plucked. Calculate the frequency if the tension in the wire is increased by 125%
The answer to your question is 96 Hz
A vehicle moving with a uniform acceleration of 4 m/s² has a velocity of 8 m/s at
certain time What will its velocity be 2 s later
Two 15 N forces in same directions are acting on an object. What is the magnitude of the net force?
Answer:
30N
Explanation:
if it is pushing the object to the left then it would be 30N left and if it is pushing the object to the right it would be 30N right
Answer: 30N
Explanation:
Which of the following best describes how the ocean convection cycle impacts different climates?
A by creating different sea levels
B by adding moisture to the atmosphere
by transferring heat from the tropics to the colder climates
by transferring plankton and other sea organisms from cold regions to warm regions
Answer:
Its C
Explanation:
I looked it up and it said that it tranfers heat to the land.
Provide any THREE types of financiei esitance that can be for
after Grade 12 to study and briefly discuss them
Answer:
University Need-Based Scholarships.
Federal and State Grants and Scholarships.
Loan Assistance.
Academic Year Student Contribution: AYSC.
Student Employment.
Outside Scholarships.
doing tutors for class 5 below
working as a waitree
and doing small business
65mi/hr South is an example of
Answer:
It's an example of velocity.
A current of 27 flows through a filament lamp when potential difference of Vis applied across How many electrons will move through the lamp in a time of 1 hour?
Answer:
6.075×10²³ Electrons
Explanation:
From the question,
Q = it............................. Equation 1
Where Q = quantity of charge, i = current, t = time.
Given: i = 27 A, t = 1 hours = 1×60×60 = 3600 seconds.
Substitute these values into equation 1
Q = 27×3600
Q = 97200 C.
If, one electron = 1.6×10⁻¹⁹ C,
Therefore, n electron = 97200×1/1.6×10⁻¹⁹ C.
n = 6.075×10²³ Electrons
Convert 75kg to joules
A 4400 Kg Track Travelling at Intial speed 52m\s can be stopeed in 42 sec. By Gently Break , also the track can be stoped in 7.6 m\s if the driver hit the wall
Answer:
-4,651.42N
Explanation:
Since we are not asked what to find, we can calculate the force applied by the track as shown;
F = ma
F = m(v-u)/t
Substitute the given value
F = 4400(7.6-52)/42
F = 4400(-44.4)/42
F = -4,651.43N
Hence the required force is -4,651.42N
what occurs after stating your hypothesis when using the scientific method?
1. conclusion
2. observation
3. experiment
4. results
Answer:
experiment
Explanation:
it goes observation
question
hypothesis
experiment
How much force is needed to accelerate a vehicle with a mass of 1000 kg at a rate
of 5 m/s2?
Calculate the heat gained by 125.0 g of water when it is put into a calorimeter and its
temperature is increased by 10.0°C. The specific heat of water is 4.184 J/(g°C).
Answer:
I don't know I'm sorry I will tell you another answer asks me
An example of any movement showing at least four different energy transformations
Bees can see into the ultraviolet region of the electromagnetic spectrum. Compared with humans, bees can sense electromagnetic waves that have a lower frequency and a shorter wavelength. a higher frequency and a longer wavelength. a lower frequency and a longer wavelength. a higher frequency and a shorter wavelength.
Answer:
a higher frequency and a shorter wavelength.
Explanation:
The correct answer would be a higher frequency and a shorter wavelength.
The visible region of the electromagnetic spectrum lies between 400 and 750 nm while the ultraviolet region lies between 300 and 400 nm. Hence, it means that bees are able to see at a shorter wavelength compared to humans.
There is an inverse relationship between the wavelength and frequency of a wave. the longer the wavelength of a wave, the shorter the frequency, and the shorter the wavelength, the higher the frequency. The means that bees are not just able to see at a shorter wavelength but at a higher frequency compared to humans.
Answer:
D
Explanation:
Help ASAP I’ll give u branliest!! This isn’t really hard
Answer:
I'm pretty sure it's mist, drizzle, droplet, and then rain.
What are ten different uses for solar energy?
Answer:
Top 10 Residential Uses for Solar Energy.
01. Solar Powered Ventilation Fans.
02. Solar Heating for Your Swimming Pool.
03. Solar Water Heater.
04. Solar House Heating.
05.Solar Powered Pumps.
06. Charging Batteries With Solar Power.
07. Power Your Home With Photo-Electric.
08. Solar Energy For Cooking.
09. Solar energy for outdoor lighting.
10. Solar transportation.