English:
The piece of plastic most likely cooled.
/
Español:
Lo más probable es que la pieza de plástico se haya enfriado.
A target is 100m away from a gun and the nozzle speedbis 400m/s whatvanglebof projection will ensure a hit
Explanation:
400m=1s
100m=? Less
=100/400×1s
=1s/4
=0.25s
if you throw a ball straight up what would the shape of its position-time graph look like?
if u throw a ball straight up its speed decreases .
the shape of the ball would be curved
velocity : top is zero
the toy crain uses an electromagnet to pick up and move the blocks explain how this electromagnet is able to pick up and move the block ?
Answer:
Answer:
toy crane pick up the blocks when the current through the wire is passed then it acts as a Electromagnet and width of the block and when the current through the wire is not passing then it left the blocks
Material
Density (g/cm)
water
1.0
aluminum
2.7
iron
7.9
silver
10.5
gold
19.3
Use the chart above to find the identity of the unknown sample
Answer:Gold is metallic, with a yellow color when in a mass, but when excellently separated it may be black, ruby, or purple. Your density numbers have no units, so they are unusable.
If the numbers you give match to the densities of the given metal in g/ml or kg/L, it should be gold.
Density = mass/volume, so:
96.5g/5ml = 19.3 g/ml. So the answer is 19.3 gold.
Explanation:
What is the current in a circuit that has a voltage of 1.5v and a resistance of 15?
Answer:
0.1 amps or A
Explanation:
I believe to calculate that you would have to use the formula V = IR and change it to:
I = V/R
I = 1.5/15
I = 0.1 amps or A
A room has a volume of 160 m3. An air-conditioning system is to replace the air in this room every 21.3 minutes, using ducts that have a square cross section. Assuming that air can be treated as an incompressible fluid, find the length of a side of the square if the air speed within the ducts is (a) 3.00 m/s and (b) 6.00 m/s.
Answer:
A. 0.204203928 m
b. 0.1443939822
Explanation:
Givens:
Volume (V) = 160 m^3
velocity 1 (v1) = 3.00 m/s
velocity 2 (v2) = 6.00 m/s
Time (t) = 21.3 minutes = 1278 seconds
Side length = ?
V = A*v*t
A = s^2
V = s^2*v*t
s= [tex]\sqrt{\frac{V}{v*t} }[/tex]
A.
s = [tex]\sqrt{\frac{V}{v*t} }[/tex] = [tex]\sqrt{\frac{160}{3.00*1278} }[/tex] = 0.204203928 m
B.
s = [tex]\sqrt{\frac{V}{v*t} }[/tex] = [tex]\sqrt{\frac{160}{6.00*1278} }[/tex] = 0.1443939822 m
I hope this helped!! Have a good day.
hai quả cầu nhỏ mang hai điện tích có độ lớn bằng nhau, đặt cách nhau 10 cm trong chân không thì tác dụng lên nhau một lúc là 9.10^-3 N xác định điện tích của hai quả cầu đó
Seperate in a mass column and a weight column.
A: Balence
B: Measure of gravitational force
C:Amount of matter in an object
D: Constant on Earth
E: Remains the same when gravitational force changes
F: Changes when gravitational force changes
G: Never changes
H:Spring Scale
I: Expressed in newtons
J:On the moon, is 1/6 of that on Earth\
K: Measured in Kilograms
Answer:
the answer is B: measure of gravitational force
In the apparatus shown above, one end of a string of length L is attached to a block of mass M and the other end is connected to the axle of a motor that rotates, causing the block to move in a circle of radius R at a constant speed vT such that the string makes an angle θ with the vertical. A student wants to use the apparatus to make measurements and create a graph that can be used to estimate the acceleration g due to gravity at the surface of Earth. The student can adjust the motor to achieve different tangential speeds of the block
Newton's second law allows finding the result for the type of graph to find the gravity acceleration is:
The student must make a graph of the tangential velocity versus the tangent of the angle and of the slope to find the value of gravity.g = [tex]\frac{slope}{\sqrt{L} }[/tex]
Oscillatory motion is a simple harmonic motion where the restoring force is proportional to the displacement.
Newton's second law gives a relationship between the net force, the mass and the acceleration of a body, in the attached we can see a free body diagram of the system, let's apply Newton's second law.
[tex]t_y - W =0 \\T_x = m a[/tex]
Since the movement is circular, the acceleration is centripetal.
[tex]a = \frac{v^2}{r}[/tex]
Let's substitute.
[tex]t_x = m \frac{v^2}{r}[/tex]
Let's use trigonometry to find the radius of the circle and the stress component.
sin θ = [tex]\frac{r}{L}[/tex]
r = L sin θ
sin θ = [tex]\frac{T_x}{T}[/tex]
cos θ = [tex]\frac{T_y}{T}[/tex]
Tₓ = T sin θ
[tex]T_y[/tex] = T cos θ
Let's substitute.
T sin θ = [tex]\frac{m v^2 }{L sin \theta }[/tex]
T sin² θ = [tex]\frac{m}{L} \ v^2[/tex]
From the other equation.
[tex]T_y= W \\T cos \theta = m g[/tex]
Let's write our system of equations.
T sin² θ = [tex]\frac{m}{L} \ v^2[/tex]
T cos θ = m g
We solve the system by squaring the second equation and dividing.
tan² θ = [tex]\frac{1}{g^2 L } \ v^2[/tex]
L g² tan² θ = v²
v = g [tex]\sqrt{L}[/tex] tan θ
Consequently, if the student makes a graph of the velocity versus the tangent of the angle, he obtains a straight line and the slope is:
slope = g [tex]\sqrt{L}[/tex]
From this expression you can calculate the acceleration of gravity.
[tex]g= \frac{slope}{\sqrt{L} }[/tex]
In conclusion using Newton's second law we can find the result for the type of graph to find the gravity acceleration is:
The student must make a graph of the tangential velocity versus the tangent of the angle and of the slope to find the value of gravity.[tex]g = \frac{slope}{\sqrt{L} }[/tex]
Learn more here: brainly.com/question/17315536
describe how humans interact with the earths spheres
Answer:
Humans can have major impacts on all the spheres.
Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere. However, people everywhere are working to change things.
Explanation:
The gravitational pull of the Moon is much less than the
gravitational pull of Earth. An object with a mass of 50
kilograms weighs about 18 pounds on the Moon.
Which statement describes the object on Earth?
A. It would have less mass.
B. It would weigh more.
C. It would have the same weight.
D. It would have more mass.
Answer:
than what is it
Explanation:
Question 4 of 11
In which situation will an object always stay motionless?
O A. When the applied force is greater than the friction force
B. When the friction force equals the normal force
O c. When the normal force equals the applied force
O D. When the applied forces add up to zero
In situation 4 will an object always stay motionless. When the applied forces add up to zero.
What is force?Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
The moment in the body is only due to the applied force. An object in scenario 4 remains stationary at all times. When all of the applied forces total up to zero.
Hence option 4 is correct.
To learn more about the force refer to the link;
https://brainly.com/question/26115859
#SPJ1
Which of the following best explains what creates this convection current?
options:
The rotation of Earth makes the air above it rotate, but not the same over land and water.
Because of its mass, Earth's gravity creates a high pressure area over both the land and water.
Salt in the ocean makes it more dense than the land, so its gravity pulls more on the air above it.
During the evening, the land cools off more quickly than the water. The cooler land cools the air above it, while the warmer water warms the air above it. These differences in air temperature create the convection.
Answer:
During the evening, the land cools off more quickly than the water. The cooler land cools the air above it, while the warmer water warms the air above it. These differences in air temperature create the convection.
Explanation:
sorry I took forever
A doll sets on the a table 3 meters high weighing 1.5kg. What is the gravitational potential energy?
A-4.5 joules
B-19.6 joules
C-14.7 joules
D-44.1 joules
Answer:
Explanation:
A - 4.5
If a small motor does 520 J of work for 10 seconds, how much power is exerted?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The power exerted by the small motor is ~
[tex]52 \: \: watt[/tex][tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]
As we know, power is the rate at at which we perform a work, that is ~
power = workdone ÷ time takenLet's find the power exerted by motor if 520 J of work is done for 10 seconds ~
[tex]p = 520 \div 10[/tex][tex]p = 52 \: \: watt[/tex]If a small motor does 520 J of work for 10 seconds, the power exerted by it is 52 Watts.
What is power?
The quantity of energy moved or converted per unit of time is known as power in physics. The watt, or one joule per second, is the unit of power in the International System of Units.
Power is also referred to as activity in ancient writings. A scalar quantity is power.
Given that the small motor does work = 520 J
Time taken for the work = 10 seconds.
Hence, power of the small motor be = work done/time taken.
=520 j/10 second
= 52 Watt.
Learn more about power here:
https://brainly.com/question/29575208
#SPJ2
Which of these will always produce a magnetic field?
Answer:
Technically everything has somewhat of a magnetic field. I guess
The seasons of the year result from Earth’s movement, or
, around the Sun.
Answer:
The answer is revolution
Explanation:
Explain how a carbon atom can move through all four of Earth's spheres. When possible apply
how the compound that carbon is in changed.
Through food chains, the carbon that is in plants moves to the animals that eat them. Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned.
five words that comes to your mind whenever you hear the word energy
Answer: power, renewable, extinct, solar, wind
Would appreciate brainliest <3
Answer:
chemical
mechanical
electrical
nuclear
thermal
brainliest ?
An 9 kg cat is running with a velocity of 3 m/s. What is the cat's momentum?
I think it's 3
Explanation:
trust me bro
what is the time now
Answer:
Now in guyana, the time is 7:01.
particles in a liquid______, move about, and ______
Answer: .
Explanation:
HELP PLEASE!! CORRECT ANSWER WILL GET BRAINLYEST!!!
Answer:
A) Moving them farther apart
Explanation:
Increasing the distance between the two metal spheres will increase the amount of electrical attraction, hence answering your question.
Since their charges are already equal, there will not be repelling
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
Look at the Grand Canyon cross section above. What was happening to the Grand Canyon area during the Permian Age?
options:
Water was rising and lowering, going from beach, to deep sea, back to a beach, then to shallow seas.
Volcanic Activity
The water was a constant shallow sea during that time.
Tectonic activity- lots of faulting and tilting.
Explanation:
constantly shallow sea tho not exactly sure
It requires 25 N of force to move a 90 kg box 120 meters across a warehouse floor, then lift it 0.5 meter to put it in a truck. Calculate the total work done to load
this box.
Answer:
Horizontal Work done + vertical work done
Explanation:
1.) First calculate the work done to move box in horizontal direction:
W = Fs
= 25N × 120m
= 3000 Joules
2.) Work done against gravity in vertical direction:
Ep = mgh
= 90x10x.0.5
= 450 Joules
Total Work done = 3000 + 450 = 3450 Joules
Determine the energy conversion for the following:
a. Light bulb
b. Firework
c.flute
d. Leaf
Answer:
the answer is b.
because it will use energy and maybe its letter A.plsss pa brainliest po ako
and also youre welcomeAnswer:
a. Light bulb - electrical to light
b. Firework - chemical to light / thermal / sound
c. Flute - kinetic to sound
d. Leaf- solar to chemical
It measures only small earthquakes.
It collects data using a seismograph.
It shows only the strength of seismic waves that were produced.
It determines the amount of damage caused by an earthquake.
Answer:
It measures only small earthquakes.
It collects data using a seismograph.
Explanation:
hope this helps
Answer: b. It uses data collected by a seismograph.
Explanation:
what is the acceleration of a car travelling at 15m/s if it is travelling at 27m/s, 5 s later?
Answer:
5.4
Explanation:
a=∆v/∆t
27/5 = 5.4
displacement is simply change in position. What is the largest displacement you have experienced in a singale day
Well that happens to me all the time.
What are the two factors that affect the force of gravity?
Answer:
there u go if u feel answer is good plzz mark me brainlest
Explanation:
When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
Answer:
The factors that affect the force of gravity are :
i) Mass
ii) Acceleration
