HELPP ME IN PHYSICS +15 POINTS!!
But a right answer not links or I’ll report. -_-
Answers
The answer shud be 31 . 14m
Related Questions
A car moving 20 m/s accelerates to pass
a truck. Five seconds later the car is
moving 30 m/s. What is the acceleration
of the car?
A. 5 m/s
B. -5 m/s
C. -2 m/s
D. 2 m/s
Gooooo
Answers
The equation is a=(vf-vi)/2
10-kg box is sliding across an ice rink at 10 m/s . A skater exerts a constant force of 10 N against it. How long will it take for the box to come to a complete stop?
Answers
Answer:
Time, t = 10 seconds
Explanation:
Given the following data;
Mass = 10kg
Force = 10N
Final velocity = 10m/s
Initial velocity = 0m/s
To find the time;
First of all, we would find the acceleration of the box.
Force = mass * acceleration
10 = 10 * acceleration
Acceleration = 10/10 = 1m/s²
Now, we can find the time by using the first equation of motion;
V = U + at
10 = 0 + 1t
10 = t
Time, t = 10 seconds
Therefore, it will take 10 seconds for the box to come to a complete stop.
What method is used when you try several different solutions to see what
works?
A. Trial and error
B. Stages
C. Heuristic
D. Rational
Answers
Answer:
A
Explanation:
Trial and error is basically trying something, if it works, great. If it does not work, try another way.
Answer:
A. Trial and error
Explanation:
The other user is correct.
A television that requires an average of 0.40 ampere of current is operated on a
120-volt service for 5.0 hours. How much energy is used?
a. 1.5 kWh
b. 0.15 kWh
C. 0.24 kWh
d. 0.67 kWh
Answers
The energy that has been used is 0.24 kWh
Click on the graphic below until the correct answer appears.
Which applies to a real machine?
Answers
Answer:
there is no graphic
Explanation:
How do the sperm cells of nonvascular plants reach the egg cells during reproduction?
A.) The sperm cells are forcefully ejected from their capsules to hit the egg cells.
B.) The sperm cells are blown by the wind and land on the egg cells.
C.) The sperm cells swim to the egg cells through their watery surroundings.
Answers
Answer:
C.) The sperm cells swim to the egg cells through their watery surroundings.
In 1965, a group of students wore black arm bands to school in protest of American policies in Vietnam. Administrators banned the wearing of armbands on school grounds; however, the students wore them again and were suspended. A lawsuit followed, and the case was eventually taken to the Supreme Court.
Answers
Answer:
protected under students first amendment rights
Explanation:
did the studyisland :)
Which has the strongest covalent bonds?
H2O
CO2
H2
N2
Answers
Answer:
co2 would be the best answer and because i just took this
Explanation:
3. Jeremy has a solution with a mass of 228 g. He knows that the mass of the solvent was 224 g. How much is the mass of the solute in the solution?
Answers
there is 4g of solute in the solution.
what is the formula of kinetic and potential energy
hey its haris
Answers
Answer:
Explanation:
potential energy = mgh
kinetic energy = 1/2mv²
(gravitational) potential = mgh
(spring) potential = 1/2kx^2
A 15 W electric shaver is used for 3 minutes. How much energy does it use in joules?
Answers
Change in E=p*t
=15*3
=45
The answer is 45J.
How much impulse is applied by a 25 N force in 30 seconds?
Answers
[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]
Actually Welcome to the Concept of the Impulse.
Impulse is denoted by 'J'
hence, J = F. dt
so we get as,
J = (25)*(30)
J = 750 N-s
===> hence the impulse is 750 N-s
Impulse is applied by a 25 N force in 30 seconds is 750 N-s.
What is force?A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.
Concept of the Impulse.
Impulse is denoted by 'J'
hence, J = F. dt
so we get as,
J = (25)*(30)
J = 750 N-s
hence the impulse is 750 N-s
Impulse is applied by a 25 N force in 30 seconds is 750 N-s.
To learn more about force refer to the link:
brainly.com/question/13191643
#SPJ2
Calculate the force that the 4kg block exerts on the 10kg block
Answers
force10kg=ma=10*2
force4kg=ma=(10*2)=20
the4 kg is pushing against the 10kg block
vf=vi+at
-10=20*28/14 * t
t=30/2=15sec
i hope this can help you.
When an object (like a ball) falls, some of its___ energy changes to ___ energy, due to the law of conservation of energy
Answers
Answer:
potential, kinetic
Explanation:
pls give brainliest :p
How is a circuit formed
Answers
Answer:
An electrical circuit is composed of a source of electrical power, two wires that can carry electric current, and a light bulb. One end of both the wires is attached to the terminal of a cell while their free ends are connected to the light bulb. The electrical circuit is broken when the bulb is switched off.
Light travels from air into a swimming pool. How does its speed change?
Answers
Answer:
D
Explanation:
Answer:
D
Explanation:
it would move at the same speed because light makes it go at the same speed
Potential Energy: A cat which weighs 10 kg walks up a ladder. The ladder has a height of 15 m. How many joules of gravitational
potential energy does the cat have?
Answers
Giving brainliest!! if you answer correctly :) (30pts)
Answers
Answer:
32000joule.
Explanation:
given
mass. (m)=160kg
speed (v)=20m/s
now
kinetic energy =1/2 (mv²)=1/2 ×{160×20²}=32000joule.
Answer:
Explanation:
Ke = 1/2 mv2
Ke = 1/2(160)(20)2
= 1/2(160)(400)
= 32000J
Option B is the correct answer
GIVING BRAINLIEST IF YOU ANSWER CORRECTLY!! (20 pts!!)
Answers
Answer:
c 1386J
Explanation:
You use the formula MCΔT where m is mass, C is specific heat, and delta t is change in temperature
Please help!!!! It's due today!!!
Answers
An old woman is worried about time. She walks at a rate of 2 meters per second and travels a
distance of 454 meters. How long does it take her to complete the motion?
Please help ASAP!! BRAINLIST please explain thankyou!!!
Answers
Answer:
227 seconds.
Explanation:
Speed is equal to distance divided by time. s = d/t
We can rearrange this algebraically to solve for the time it will take to cover a certain distance at a certain speed. Time is equal to distance divided by speed. t = d/s
Then we substiture our known values for the variables and solve for our unknown.
t = 454m / 2m/s = 227s
Answer:
If the lady is traveling 2 meters per second and she travels 454 meters then you will have to divide 454 by 2 to get the amount of time she walked.
454 divided by 2 = 227
This means that the lady traveled for 227 seconds or about 3.78 minutes.
why do we tilt umbrella in rain. Explain
Answers
Answer:
Rain is falling vertically. A man running in the road keeps his umbrella tilted but a man standing on road keeps his umbrella vertical to protect himself from the rain but both of them keep their umbrella vertical to avoid the vertical sun-rays. ... Thus we can tilt the umbrella to avoid it.
Explanation:
XOXO
Kit
What sort of force is magnetism?
pls help ASAP :)
no links pls
Answers
Answer:
Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects.
HELP PLEASE!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (20pts)
Answers
Explanation:
potential energy =360800J
mass(m)=?
height (h)=25m
g=9.8m/s²
we have
potential energy =360800J
mgh=360800J
m×9.8×25=360800
m=360800/(9.8×25)=1472.653061kg
Answer:
HELP PLEASE!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted!
After being pushed and released, a 50 kg crate slides across a factory floor. Friction on the sliding crate is 200 N, what is the crates acceleration ?
Answers
200 = 50 * a
4 = a
Therefore acceleration is 4ms^-2
it is made up of small particles
Answers
Answer:
Everything is made up of tiny particles called Matter
Select the correct location on the image.
Which color in the visible spectrum has the highest frequency?
Answers
Answer:
Violet I took the test and it was right
Answer:
Violet the dude above was correct i took the test and got it right
Explanation:
The graph above represents a object moving
____
The velocity of the object is i
____
The acceleration of the object is ____
Answers
The object's velocity is positive and decreasing.
Its acceleration is negative.
In which situations is elastic potential energy present
Answers
Answer:
if positioned at height
Explanation:
just search it online
Answer: 1st, 4th, and 6th choice
A bow is drawn back from its equilibrium position.
A spring toy dart gun is loaded with a dart.
A bungee cord is stretched with a person at the end.
Explanation:
If these are the choices...
A bow is drawn back from its equilibrium position.
An arrow rests on a bow.
A spring toy dart gun is unloaded.
A spring toy dart gun is loaded with a dart.
A bungee cord is connected to a tall tower.
A bungee cord is stretched with a person at the end.
Edge 2021
Sam goes to a friend's house by bike. His friend's house is 350m away. The journey takes 50s. What is Sam's average speed?
Answers
V=350m/50s
V=7m/s
Answer:
Sam's average speed was 7ms-1
Explanation:
speed= distance / time
speed= 350 / 50
speed= 7 metres per second.