Answer:
telescope
Explanation:
| AMNH. Before telescopes were invented, people gazed at the night sky with amazement and dreamed of a closer look. The invention of the telescope in 1608 gave humans their chance to explore the vastness of the Universe.
Answer:
The invention of the telescope
PLS MARK BRAINLIEST
A cube with 10 cm sides and a mass of 1200 g will ___ in water?
float
sink
not enough informational
Answer
float is the answer
Explanation:
- by nævis
Một đoạn mạch gồm R1=8 ôm;R2=12 ôm.biết R1 nối tiếp với đoạn mạch gồm R2 song song với R3; R3=1/2 R2 cường độ dòng điện chạy qua mặt chính là 2A
a. Hãy vẽ sơ đồ mạch điện trên
b. Tính điện trở tương đương toàn mạch
c. tính cường độ dòng điện qua mỗi điện trở
Answer:
Explanation:
a.
b. R3= 1/2R2=6 ôm
R12= R1+R2=20 ôm
Rtđ=R12.R3/R12+R3= 4,62 ôm
c. U= I.Rtđ = 2.4,62=9,23 V
I1=I2= 9,23/20= 0,4615 A
I3= 2-0,4615=1,5385 A
how much is the velocity of a body when it travels 600m in 5 minutes ?
its answer is 2M/S
but I don't know solution to take this answer
Explanation:
Displacement= 600 m
Time= 5×60 = 300 sec
Velocity= Displacement/time
= 600/300
= 2 m/s
Find the instantaneous acceleration at t=ls for an object moving along a straight axis with velocity function:
v(t)= -t3+5t
Answer:
A. 2m/s^2
B. 5m/s^2
a student redid the experiment of mixing room temperture water
Answer:what do you need to know
Explanation:
Hello, are there any furries, artists, equestrians, gamers, athletes, etc? If so reply down below
Say “OwO”if your a furry
Say “bonjour” if your an artist
Say “:-}”or yee haw if your an equestrian
Say “GG!” if your a gamer
Say “Just believe in yourself. Even if you don’t pretend that you do and, and some point, you will.” if your an athlete ⚽️⚾️⛳️⛸
Answer:
bonjour,GG, Just believe in yourself
Explanation:
Answer:
OwO (Also "bonjour" and "GG!" but saying those feels uncomfortably forced qwp)
Question:
the distance of the car can move by velocity 15 m/s for time 5s is :
Physics
Answer:
c) 2.05
Explanation:
3. Pandemic took its toll on our health. We cannot go outside to do our physical activities and socialize with other people like we used to. To maintain our active lifestyle even in the comforts of our home, we must do balanced activities. This will help us take good care of ourselves and help us cope with what is happening around us. We can identify the tasks we do at home as work, or no work done.
● On the table below, list down the personal care and school work-related activities you do at home. Classify if it has work or no work done. Furthermore, identify the form of energy while you are doing the task.
Answer:
force
Explanation:
work done x time the person can determine
not sure really what to answer but here are 4 parts.
personal care
1.) working out
2.) brain games
3.) Manual labor
4.) Sleep to make you relaxed and have energy for the next day
5.) working a job (if you have one)
school relate
1.) studies for at least 15 minutes since a humans intention spam is around 15 minutes
2.) Homework
3.) taking notes
4.) Analysis your progress
5.) Test yourself if you remember the information
if a student is sitting down for 5 hours doing nothing, he would soon be getting drowsy because lack of activity along with potentially getting depression or some other kinds of related features.
that last question I don't know how to answer that. that's all you bud.
A sodium atom has 11 electrons. How many orbitals in a sodium
atom contain electrons?
A force of 36 N pushes a box that is 12.2 kg. The box is sliding horizontally 2.6 m/s to the left. What is the coefficient of friction? (Could you draw a Force Diagram?)
The coefficient of friction on the box sliding to the left is 0.3.
The given parameters;
applied force , F = 36 Nmass of the box, m = 12.2 kgvelocity of the box, v = 2.6 m/sThe acceleration of the box is calculated as follows;
[tex]F = ma\\\\a = \frac{36}{12.2} \\\\a = 2.95 \ m/s^2[/tex]
The coefficient of friction on the box is calculated as follows;
[tex]\mu_k = \frac{a}{g} \\\\\mu_k = \frac{2.95}{9.8} \\\\\mu_k = 0.3[/tex]
Thus, the coefficient of friction on the box is 0.3.
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A 100 kg physics teacher pushes a 1.0 kg physics textbook across a 222 kg physics demo table. The teacher applies 5.0 N of force to start the book sliding and 4.0 N to keep it sliding at a constant 0.30 m/s across the table.
Sketch a free body diagram showing all the forces acting on the book as the teacher pushes it.
1 . What is the magnitude of the weight of the book?
2. What is the magnitude of the normal force of the table on the book?
4. What is the coefficient of static friction between the book and the table?
5. What is the coefficient of kinetic friction between the book and the table?
6. If the teacher stops pushing the book, what is the magnitude of the net force on the book?
7. What acceleration does the book have after the teacher stopped pushing it?
8. How far does the book slide before coming to rest?
Answer:
1) 1kg
2) 9.81kg
4) 5N
5) 4N
6) 0N
7) 0N
8) 13
Explanation:
A car drove 6 km east, turned 90° to the north, and drove 8 more km. What is the cars
displacement from where they began?
Answer:
14 km away and a turn of 90°
Explanation:
brailiest pls pls pls
15
Select the correct answer
Betty has to cookarump cut. She observed that meat dishes often spill out all their juices when they are cut. What should she do te
situation
DA She needs to make sure that she lets the rump sit for 5 to 10 minutes after it is cooked.
OB She needs to add wine to the rump before cooking it.
Oc She needs to cook the rump until all of the water evaporates.
OR She needs to keep the ramp in a preheated pan covered with a lid.
Reset
Next
Answer:
Option A can be correct because when the meat is kept the rump settles down and the meat is prevented from being messy everywhere.
Explanation:
A car moving on a straight level road changes its speed from Find its acceleration . (3 pts ) 3.5 m/s to 4.5 m/s in 5.00 seconds .
Answer:
The answer is in my picture.
Explanation:
I hope you have a nice day and please mark me bye(:
if two particles have equal momenta, are their kinetic energies equal?
What a medium-mass star becomes at the end of its life?
Answer:
What a medium-mass star becomes after a planetary nebula; a very bright, dense mass about the size of the planet Earth. ... The process that generates all of the energy that a star produces. Supernova. A Red Super Giant explodes into this when it runs out of elements to fuse together.
Explanation:
Which action is due to field forces
Answer:
:)
Explanation:
Raindrops fall on the earth due to gravitational field force. When two magnets come closer to each other, they will either attract or repel each other, which is magnetic field force examples. Without any physical contact, iron pins get attracted towards the magnet as a field force.
How is air resistance similar to gravity? give me two ways.
Answer:
1. they both act on an object in free fall
Explanation:
2. both help determine how fast the object will accelerate
hi guys can yall answer this this one is very easy
Answer:
1:physical fitness
2:cardiovascular endurance
3:self testing exercise
4:zipper test
5:fitness level
Explanation:
hope this helps
Question 14
1 pts
Time
Attem
26M
In an experiment, a student adds weights to a spring and then measures the length the
spring is pulled. The length the spring is pulled is called the
O Dependent Variable
O Controlled Variable
Independent Variable
O Random Variable
< Previous
Next >
Answer:
The answer is Dependent Variable
what is atmospheric pressure
Answer:
the pressure within the atmosphere of Earth
Explanation:
Atmospheric pressure is a force in an area pushed against a surface by the weight of the atmosphere of the earth.
What is mass? (7th grade definition) thanks!!
Answer:
→ Mass is the lightness or heaviness of a body that is free from any force field.
OR→ Mass is the volume of a body multiplied by its density.
[tex].[/tex]
Put the levels of organization of an ecosystem in order from smallest (1) to largest (4).
community
ecosystem
organism
population
Answer:
3
community
4
ecosystem
1
organism
2
population
Explanation:
i did it other guy worng
Which of the following is most likely to require direct current (DC) for proper operation?
a. A blender
b. A flashlight
c. An electric heater
d. A microwave oven
Answer:
the answer is b
Explanation:
Which correctly identifies the mass and approximate weight of the same object on Earth?
А) 10-N mass, 1-kg weight
B) 20-kg mass, 200-N weight
C) 30-g mass, 300-N weight
D) 40-N mass, 400-g weight
E) 50-kg mass, 50,000-g weight
Answer:
B.
Explanation:
w=mg
g=10m/s
hope this helps
if human beings ever travel to a planet whose mass and radius are both twice that of the earth, their weight on that planet will be
a box has a length of .5 m and a width of .1m. if the box exerts a force of 10 N on the floor, what is the pressure of the box on the floor
Answer:
The pressure of the box on the floor is 200 Pa
Explanation:
Given,
Length of the box=0.5m
Width of the box= 0.1m
∴Area of the box, A= (0.5 X 0.1) sq.m
= 0.05 sq.m
We know,
Pressure, P= F/A
= 10/0.05 Pa
= 200 Pa
∴The pressure of the box on the floor is 200 Pa
Why is an element considered a pure substance?
Answer:
An element is a pure substance and is made of only one type of atom.
Explanation:
It cannot be broken down into a simpler substance.
B. Assuming the acceleration is still -9.81 m/s2, what is the instantaneous velocity of the
shuttlecock when it hits the ground? Show your work below.
We have that the instantaneous velocity of the shuttlecock when it hits the ground is
[tex]V_{int}=\sqrt{U^2+19.6H}[/tex]
From the question we are told
Assuming the acceleration is still -9.81 m/s2, what is the instantaneous velocity of the
shuttlecock when it hits the ground? Show your work below.
Generally the equation for acceleration is mathematically given as
[tex]a=v \frac{dv}{dx}\\\\\Therefore\\\\\2ah=v^2-u^2[/tex]
Where
acceleration is still -9.81 m/s2,
Hence,
[tex]V^2-U^2=2(-9.81)*-H[/tex]
Therefore
[tex]V_{int}=\sqrt{U^2+19.6H}[/tex]
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Please write and solve this question in five sentences or more
Answer:
m
Explanation:
hjvb,nbvhgjhghjmn,