Answer:
static friction will be your answer
Cuales son las propiedades de los materiales semiconductores de electricidad?
Answer:En general, los semiconductores son materiales, inorgánicos u orgánicos, que tienen la capacidad de controlar su conducción dependiendo de ...
Explanation:
im confused on number two can u help me through it
Hi there!
We can solve this in two ways, using the Work-Energy theorem or kinematics.
Work-Energy:
We know that:
Ei = Ef, as long as there are no external forces working on the system.
Thus:
Ei = PE = mgh
Ef = KE = 1/2mv²
Therefore:
mgh = 1/2mv²
We can cancel out the mass:
gh = 1/2v²
9.8(10) = 1/2v²
√196 = v = 14 m/s
We can also solve using kinematics, using the equation:
vf² = vi² + 2ad
From rest (vi = 0 m/s) and a = g, so:
vf² = 2gd
vf = √2gh
vf = √(2 × 9.8 × 10) = 14 m/s
What would the position-time graph look like for an object that remains still over time?(1 point)
A. a horizontal line
B. an upward curve
C.an increasing line
D. a decreasing line
Plz Helppp. I need it ASAP
Answer:
a
Explanation:
it would be horizontal
The position-time graph look like A. a horizontal line for an object that remains still over time.
A position-time graph shows how far an object has moved from its starting point at any given time since it started moving. The slope of a position graph shows the velocity of an object.
The position-time graph looks like a horizontal line for an object that remains still over time.
Option A. is correct.
For more information:
https://brainly.com/question/11290682?referrer=searchResults
A car accelerates uniformly in a straight
line from rest at the rate of 3.3 m/s^2
What is the speed of the car after it has
traveled 60 m?
h
Answer in units of m/s.
how Long does it take the car to travel 60m?
answer in units of s
Answer: see below
Explanation:
The intial speed is u=0[tex]\frac{m}{s}[/tex]
The acceleration is a= 3.3[tex]\frac{m}{s}^2[/tex]
The distance is s=60m
Apply the equation of motion
[tex]v^{2}[/tex]=[tex]u^{2}[/tex]+2as
So,
[tex]v^{2}[/tex]=0+2*3.3*60=396
v=[tex]\sqrt{396}[/tex] = 19.89 m/s ≈20 m/s
Applying the equation of motion
v=u+at
t= [tex]\frac{v-u}{a}[/tex] =[tex]\frac{19.89-0}{3.3}[/tex] = 6.02seconds
A toy car is pushed off a 1.2 meter tall table and lands 3 meters from the base of the table.
A. What was the initial horizontal velocity of the toy car?
B. How long did it take the toy car to hit the ground?
HOPE IT HELPS YOU
CAN YOU BRAINLEST ME
Answer:
w
Explanation:
w
A 0.12 kg object makes an elastic head-on collision with a 0.18 kg stationary object. The final velocity of the 0.12 kg object after the collision is 0.048 m/s in the direction opposite its initial movement. The final velocity of the 0.18 kg object after the collision is 0.19 m/s in the same direction as the object which strikes it. What was the initial velocity of the 0.12 kg object?
Answer:
0.12kg / 0.19
Explanation:
Becase the volcity reuded
The final velocity of the 0.18 kg object after the collision is 0.19 m/s in the same direction as the object which strikes it, then the initial velocity of the 0.12 kg object would be 0.237 m / s .
What is momentum?It can be defined as the product of the mass and the speed of the particle, it represents the combined effect of mass and the speed of any particle, and the momentum of any particle is expressed in Kg m/s unit.
As given in the problem, a 0.12 kg object makes an elastic head-on collision with a 0.18 kg stationary object. The final velocity of the 0.12 kg object after the collision is 0.048 m/s in the direction opposite its initial movement. The final velocity of the 0.18 kg object after the collision is 0.19 m/s in the same direction as the object which strikes it.
By using the conservation of the momentum,
v × 0.12 + 0 × 0.18 = ( - 0.048)× 0.12 + 0.19 × 0.18
v = 0.237 m / s
Thus, the initial velocity of the 0.12 kg object would be 0.237 m / s .
To learn more about momentum from here, refer to the link given below ;
brainly.com/question/17662202
#SPJ2
I need the right answer ASAP NO LINKS!!!
The first one!
Hope this helps pls mark as brainliest :)
Answer:
Models change to accommodate new discoveries.
Explanation:
Scientific models are based on current scientific knowledge. This means that when new discoveries are made they are subject to change.
Please help I'll mark brainliest
Answer:
B. 5Ω
Explanation:
Equivalent resistance between point P and Q
= 3Ω + Tp
Total Parallel resistance, Tp
[tex] \frac{1}{Tp} = \frac{1}{12Ω} + \frac{1}{6Ω} + \frac{1}{4Ω} [/tex]
[tex]\frac{1}{Tp} = \frac{1}{12Ω} + \frac{2}{12Ω} + \frac{3}{12Ω} [/tex]
[tex]\frac{1}{Tp} = \frac{6}{12Ω}[/tex]
[tex]6(Tp) = 12Ω[/tex]
[tex]Tp = \frac{12Ω}{6} [/tex]
[tex]Tp = 2Ω[/tex]
Equivalent resistance between point P and Q
= 3Ω + 2Ω
= 5Ω
Help asap please thank you
Answer:
the answer its time
v = d/t
Answer:distance
Explanation:
Why is carbon-14 the best element to use for dating things?
Answer:
the radioactivity of carbon-14 DECAYS BY HALF.
Explanation:
if the distance is 207m what is the time
Answer:
That depends on your average speed and the number of stops you make. However, assuming you could average 55 miles per hour for the entire distance, your total driving time would be about 3 hours and 45 minutes.
whats the kinetic energy please help me ive been stuck for a while
Answer:
k=1/2mv²
Explanation:
k is the kinetic energy
m is mass
and v is velocity/speed
What is a common disease caused by a fungus?
A.
common cold
B.
HIV/AIDs
C.
athlete's foot
D.
pneumonia
What is the acceleration of a Ford Mustang GT that can go from 0.00 to 27.8
m/s in 5.15 seconds?
What is an uncharged body? In physics (simple words)
An uncharged body is a body that has equal magnitude of positive as well as negative charge on it. So as soon as some charged body is placed near it, the charged body induces negative charges on the uncharged body.
A bicyclist brakes from 21.7 m/s to a stop in 32.3 m.
What is the acceleration of the bicyclist?
How much time does it take for the bicyclist to stop?
What is the bicyclist’s average speed?
The acceleration of the bicycle during the motion before stopping is 7.29 m/s².
The time taken for the bicycle to stop is 2.98 s.
The average speed of the bicycle is 10.83 m/s.
The given parameters;
initial velocity of the bicycle, u = 21.7 m/sdistance traveled by the bicycle, s = 32.3 mThe acceleration of the bicycle is calculated ad follows;
v² = u² + 2as
where;
v is the final velocity of the bicycle after stopping = 0
0 = u² + 2as
-2as = u²
[tex]a = -\frac{u^2}{2s} \\\\a = \frac{(21.7)^2}{2\times 32.3} \\\\a = -7.29 \ m/^2\\\\|a| = 7.29 \ m/s^2[/tex]
The time taken for the bicycle to stop is calculated as;
v = u + at
0 = 21.7 - 7.29t
7.29t = 21.7
[tex]t = \frac{21.7}{7.29} \\\\t = 2.98 \ s[/tex]
The average speed of the bicycle is calculated as;
[tex]v = \frac{totla \ distance}{total \ time} \\\\v = \frac{32.3}{2.98} \\\\v = 10.83 \ m/s[/tex]
Learn more here:https://brainly.com/question/16782759
how the x ray use the behavior and characteristics of the electromagnetic wave to function.
Answer:
How do X rays use electromagnetic waves to function?
X-rays are very high-frequency waves and carry a lot of energy. They will pass through most substances, making them useful in medicine and industry to see inside things. An X-ray machine works by firing a beam of electrons at a "target." If we fire the electrons with enough energy, X-rays will be produced.
Explanation:
what kind of role can you play in your family and locality in terms of population education awareness
Answer:
I can suggest them by making different program about it and I will tell them the importance of less and productive population . Also tell them bad consensus of over population. I also give the technique of stopping over population.
Why do atoms
have no electric charge even though most of
rticles have charges?
What important scientific advance made bacteria less dangerous to humans
Answer:
bacteria like
virus
1. A cross country skier averages 3.2 m/s over 9.1 km. How long did the skier's trip
take?
Answer:
your answer is 12.3
Explanation:
hope it helps : )
I want you to.......
Explain the Michelson-Morley experiment.
And please explain the equations.
Please ☺️❤️
Answer:
Michelson reasoned that, if the speed of light were constant with respect to the proposed ether through which Earth was moving, that motion could be detected by comparing the speed of light in the direction of Earth's motion and the speed of light at right angles to Earth's motion.
A truck pulls a trailer on a flat stretch of road. The forces acting on the trailer are
the force due to gravity (250 000 N downward), the force exerted by the road
(250 000 N upward), and the force exerted by the cable connecting the wailer to
the truck (20 000 N to the right). The forces acting on the truck are the force due to
gravity (80 000 N downward), the force exerted by the road (80 000 N upward), the
force exerted by the cable (20 000 N to the left), and the force causing the truck to
move forward (26 400 N to the right).
The net vertical force on the trailer is 0, while the net horizontal force on the trailer is 20,000 N to the right.
The net vertical force on the truck is 0, while the net horizontal force on the truck is 6,400 N to the right.
The given parameters;
the trailer:
force on the trailer due to gravity, Fg = 250,000normal force on the trailer due to the road, N = 250,000 Nhorizontal force on the trailer, Fx = 20,000 N to the rightthe truck:
force on the truck due to gravity, Fg = 80,000 Nnormal force on the truck due to the road, N = 80,000 Nleft horizontal force on the truck, Fx = 20,000 Nright horizontal force on the truck, Fx = 26,400 NThe net force on each vehicle is calculated as follows;
for the trailer:
Net vertical force is calculated as;
[tex]\Sigma F_y = 250, 000 \ N - 250,000 \ N = 0[/tex]
Net horizontal force is calculated as;
[tex]\Sigma F_x = 20,000 \ N[/tex]
for the truck;
Net vertical force is calculated as;
[tex]\Sigma F_y =80,000 \ N - \ 80,000 \ N = 0[/tex]
Net horizontal force is calculated as;
[tex]\Sigma F_x = 26,400 \ N - \ 20,000 \ N = 6,400 \ N \ to \ the \ right[/tex]
"Your question is not complete, it seems to be missing the following information;"
find the net force on each vehicle.
Learn more here: https://brainly.com/question/14361879
PLZZZZZZ Help Due tmr
State whether these questions are true or false.
Q1) Distance formula is displacement/time T/F?
Q2)velocity formula is = displacement/time T/F?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The given statements are :
Q1) Distance formula is displacement/time T/F?
- False
Q2)velocity formula is = displacement/time T/F?
- True
9.) Why would a pendulum swing faster or slower on different planets?
If a 2kg block of copper is heated and a temperature increase of 50C is measured, how much energy has been provided?
Explanation:
Given : S=400Jkg
−1
C
−1
and L
f
=3.5×10
5
Jkg
−1
Mass of copper block m=2kg
Heat released by the copper block is equal to the heat gained by the ice to melt.
Let the mass of the ice melted be M.
Change in temperature of copper block ΔT=500−0=500
o
C
∴ mS(ΔT)=ML
f
Or 2×400×500=M×3.5×10
5
⟹ M=1.14kg
hope it help u
We have that If a 2kg block of copper is heated and a temperature increase of 50C is measured,the energy has been provided is
E=418KJ
From the question we are told
If a 2kg block of copper is heated and a temperature increase of 50C is measured, how much energy has been provided?
Generally the equation for the Energy is mathematically given as
[tex]E=mC(T_1-T_2)\\\\E=2*4180(50)\\\\E=418000J\\\\E=418KJ[/tex]
Therefore
If a 2kg block of copper is heated and a temperature increase of 50C is measured,the energy has been provided is
E=418KJ
For more information on this visit
https://brainly.com/question/23379286
Hai hạt bụi trong không khí cách nhau 3cm mỗi hạt mang điện tích -9,6.10 mũ -13C. A )Tính lực đẩy tĩnh điện giữa hai hạt
B ) tính số electrong dư trong mỗi hạt bụi biết diện tích củ mỗi electrong -1,6.10 mũ -19C
Answer:b
Explanation:
If Ms. Ramirez drops a watermelon from the top of the second-floor fire escape outside her room, and it takes 1.5 seconds to hit the ground, calculate the velocity of the watermelon as it hits the ground.
The velocity of the watermelon as it hits the ground is 14.715 m/s.
Given the data in the question;
Since the Watermelon was dropped from rest,
Initial velocity of the Watermelon;[tex]u = 0m/s[/tex]Time taken for the Watermelon to hit the ground; [tex]t = 1.5s[/tex]We know that, Acceleration due to gravity; [tex]g = 9.81 m/s^2[/tex]Now, we determine the velocity of the watermelon as it hits the ground which is the final velocity.
From the First Equation of Motion:
[tex]v = u + at[/tex]
Now, under gravity, acceleration ''a" will Acceleration due to gravity;[tex]g = 9.81m/s^2[/tex], "v" is the final velocity, "u" is the initial velocity and "t" is the time taken.
So, we substitute our values into the equation
[tex]v = 0m/s\ +\ ( 9.81m/s^2\ * 1.5s )\\\\v = ( 9.81m/s^2\ * 1.5s )\\\\v = 14.715 m/s[/tex]
Therefore, the velocity of the watermelon as it hits the ground is 14.715 m/s
Learn more; https://brainly.com/question/13275688
Please help I'll mark brainliest