You place a box weighing 268.3 N on an inclined plane that makes a 42◦ angle with the horizontal.
Compute the component of the gravitational force acting down the inclined plane.
Answer in units of N.
Answers
Answer:
Wy = - 268.3*cos(42) = - 199.38 [N]
Wx = 268.3*sin(42) = 179.52 [N]
Explanation:
To solve this problem we must make a free body diagram, in the attached image we can see a free body diagram.
Taking the inclined X & y axes with the same angle of 42°, we can see that the weight can be decomposed on both axes.
Since the angle is adjacent to the y-axis, we can use the cosine function
Wy = - 268.3*cos(42) = - 199.38 [N]
Wx = 268.3*sin(42) = 179.52 [N]
Related Questions
What is the primary difference between static and ballistic stretching? Do you see this as being beneficial or potentially harmful? Why?
Answers
Example 1: Two physics students, Ben and Bonnie, are in the weightlifting room. Bonnie lifts the 50kg barbell
over her head (approximately .60 m) 10 times in one minute; Ben lifts the 50 kg barbell the same distance over his
head 10 times in 10 seconds.
o Which student does the most work?
O
Which student delivers the most power?
Answers
Answer:
Same
Ben.
Explanation:
m = Mass Bonnie and Ben lift = 50 kg
s = Displacement of mass by both the students = 0.6 m
Work done by both the student is
[tex]W=Fs\\\Rightarrow W=10\times 50\times 0.6\\\Rightarrow W=300\ \text{J}[/tex]
The amount of work done by both the students will be equal to 300 J.
[tex]t_1[/tex] = Time taken by Bonnie = 1 minute = 60 seconds
[tex]t_2[/tex] = Time taken by Ben = 10 seconds.
Power delivered by Bonnie
[tex]P=\dfrac{W}{t_1}\\\Rightarrow P=\dfrac{300}{60}\\\Rightarrow P=5\ \text{W}[/tex]
Power delivered by Ben
[tex]P=\dfrac{W}{t_2}\\\Rightarrow P=\dfrac{300}{10}\\\Rightarrow P=30\ \text{W}[/tex]
So, power delivered by Ben is more.
What is the difference between weight and mass? How does the differences affect real world problems?
Answers
The mass is measured in kilograms (kg), while the weight is measured in newtons (N).
Mass refers to the amount of matter an object has, but the weight refers to the force of gravity acting on an object.
The main difference between obsessive-compulsive personality disorder (OCPD) and obsessive-compulsive disorder (OCD) is that __________.
people with OCPD know their disorder is irrational
people with OCD know their disorder is irrational
OCPD is an anxiety disorder consisting of disturbing thoughts
OCD is a mood disorder consisting of disturbing behaviors
Answers
Answer:
B. people with OCD know their disorder is irrational
Explanation:
Got it right
Answer:
B
Explanation:
Edge2021
A dumbell has a mass of 95 kg. What force must be applied to accelerate it upward at 2.2 m/s?
Answers
Answer:
f= mass/acceleration
Explanation:
f= 95/2.2
PLZ HELP ME I BEG YOU :(
The chemical composition and crystal structure of a mineral gives it unique characteristics.
True OR False
Answers
As a general rule, women __________.
A. are more flexible than men
B. are less flexible than men
C. are as flexible than men
D. are flexible in different ways than men
Answers
Answer:
a
Explanation:
What is an electromagnet and what are they used for?
Answers
Answer:
Electromagnets are used in all kinds of electric devices, including hard disk drives, speakers, motors, and generators, as well as in scrap yards to pick up heavy scrap metal. They're even used in MRI machines, which utilize magnets to take photos of your insides!
Explanation:
A 49 N coconut is in a 15 m tree. What is te potential energy of the coconut?
PE= mgh-wh
g9.8 m/s
Answers
Answer:
735 J
Explanation:
From the question given above, the following data were obtained:
Weight (W) = 49 N
Height (h) = 15 m
Potential energy =?
Potential energy is simply defined as the product of weight of the object and height to which the object is raised. Mathematically, it is expressed as:
Potential energy = weight × height
With the above formula, we can obtain the potential energy of the coconut as follow:
Weight (W) = 49 N
Height (h) = 15 m
Potential energy =?
Potential energy = weight × height
Potential energy = 49 × 15
Potential energy = 735 J
Thus, the potential energy of the coconut is 735 J
How do molecules behave in a solid?
Answers
Answer:
In the solid state particles are held closely together and vibrate slightly. They exist in a regular arrangement - there is no regular arrangement in the other states.
Answer:
The motion and vibration of the atoms pull the individual molecules apart from each other
Explanation:
:)
A ball is thrown horizontally at 25.8m/s from 54 meter high cliff. How far from the base of the cliff does the ball land?
Answers
Answer:
85.66m
Explanation:
Given the following data;
Horizontal velocity = 25.8m/s
Height = 54m
Initial velocity = 0
We would first of all, solve for the time taken using the formula for maximum height of a projectile.
H = ½gt²
Where;
H is the maximum height measured in meters. g represents the acceleration due to gravity measured in meters per seconds square. t represents the time taken measured in seconds.We know that acceleration due to gravity is 9.8m/s²
Substituting into the equation
54 = ½*9.8t²
54 = 4.9t²
t² = 54/4.9
t² = 11.02
t = 3.32 secs
To find the distance;
Distance, x = velocity * time
x = vt
Substituting into the equation, we have;
x = 25.8*3.32
x = 85.66m
Write down the characteristics of images formed
when an object is kept at the center of curvature of
concave mirror.
Answers
Explanation:
When the object is placed at centre of curvature (C) of a concave mirror, a real and inverted image is formed at the same position. Properties of image: Same size of object.
Once the causes of a problem with a product are identified, the next step is to
a.
communicate the solution.
b.
identify a need.
c.
redesign the product.
d.
build a prototype.
Answers
a. communicate the solution
What cloud type signals the coming of a warm front?
(I don't think it's physics but I couldn't find a subject that fit)
Answers
Answer:
altocumulus, cirrocumulus and cumulonimbus are cloud types that signals a warm front
Explanation:
The subject is geography
what did mosa and her team do to conduct the experiment
Answers
Answer:
time and complete a hands-on team challenge to gather evidence to support this idea. ... Using this data, students come up with ways in which they can mitigate their ... Learners will help Mosa figure out how Lystrosaurus fossils were found on
Explanation:
In the Make Extension, students conduct experiments to determine the role
Unit for Gravitational Potential
Answers
Answer:
J/kg
Explanation:
The unit of gravitational potential is J/kg.
Gravitational potential is the amount of energy needed to bring a unit mass of charge from an external point to that field.
The difference between the point and that of zero potential is the gravitational potential. It is gravitational potential energy per unit mass. The symbol is V.Which of the following objects will have the greatest inertia?
Question options:
10 m
10 J
10 N
10 kg
Answers
Answer:
The proximate answer pertaining to your question entails 10 kg.
Justification:
The statement implies which of the following units preceded by the value of 10 will obtain substantial inertia.
Exploiting conversions, this can be evinced/demonstrated:
Choice "10 m" => .01 kg
10 J ==> 0.10
10 N ==> 1.02 kg
10 kg ==> 10 kg
Thus, an object obtaining a cumulative mass of 10 kg obtains substantial inertia.
*Hope this helps*What is the current in a circuit if 3.50 C of charge passes any given point in a circuit in 1.80 s?
Answers
Answer:
I = 1.944 A
Explanation:
Given the following data;
Charge, Q = 3.5C
Time, t = 1.8 secs
Charge of a substance is given by the formula;
[tex] Q = It[/tex]
Where;
Q is the amount of charge measured in Colombs.
I is the current measured in Amperes.
t is the time measured in seconds.
Making I the subject of formula, we have
[tex] I = \frac {Q}{t} [/tex]
[tex] I = \frac {3.5}{1.8} [/tex]
I = 1.944 A
Therefore, the current in the circuit is 1.944 Amperes.
A toy car sits motionless at the top of a ramp. What will happen to the car if a balanced force acts upon it?
Answers
Answer:
kinetic energy because when the car moves again it will be faster then it was before
What happens to the current in a circuit if a 10Ω resistor is removed and replaced by a 20Ω resistor? (voltage stays the same)
Current will increase
Current will not travel through the circuit
Current will stay the same
Current will decrease
Answers
If a 10Ω resistor is removed and replaced by a 20Ω resistor, at constant voltage, the current will decrease.
Ohms lawThis law states that, the current flowing in a conductor is directly proportional to the voltage in the conductor.
V = IR
where;
V is the voltage of the conductotI is the currentR is the resistanceI = V/R
At constant voltage, when the value of the resistance increases, the value of the current in the ciircuit wil decrease.
Thus, if a 10Ω resistor is removed and replaced by a 20Ω resistor, at constant voltage, the current will decrease.
Learn more about current here: https://brainly.com/question/25537936
b. Both cars passed a gas station 120km from the school. When did each car pass the gas
station?
Answers
Pweese help one more timeeee
pweese look at the image below
Answers
Answer:
1. 50 meters
2. average velocity (?)
Explanation:
Vot + 1/2 at^2
= 0 (10) + 1/2(1)(10)^2
= 0 + 1/2 (1)(10)^2
= 1/2 (1) (100)
= 1/2 (100)
= 50
What is the time period of a pendulum which oscillates 20 times in 2 seconds?
Answers
Explanation:
The pendulum oscillates 10 times in 1 second.
Thus the frequency is 10 Hz
Now the time period will be 1/f = 1/10 = 0.1s
How much work do you do when you lift a 100 N child 0.5 m?
Answers
Answer:
50 JExplanation:
The work done by an object can be found by using the formula
workdone = force × distance
From the question we have
workdone = 100 × 0.5
We have the final answer as
50 JHope this helps you
You are driving down a street in a car at 55 km/hr. Suddenly, a child runs into the street. If it takes you .75 s to react and apply the brakes, how many meters will you have moved before you begin to slow down?
Answers
Answer:
s = 11.46 m
Explanation:
Since, the reaction time is 0.75 s. Hence, the brakes shall be applied after this time. So, the car will start to slow down after covering a distance at the constant speed during this time. This distance can be given as follows:
s = vt
where,
s = distance covered by car before slowing down = ?
v = speed of car = (55 km/h)(1 h/3600 s)(1000 m/1 km) = 15.28 m/s
t = reaction time = 0.75 s
Therefore,
s = (15.28 m/s)(0.75 s)
s = 11.46 m
Which of the following explains how an executive order differs from a law?
Answers
Answer:
Executive Orders state mandatory requirements for the Executive Branch, and have the effect of law. They are issued in relation to a law passed by Congress or based on powers granted to the President in the Constitution and must be consistent with those authorities.
Explanation:
A magnet placed against the wall of a metal shed falls to the ground, where it attracts a nail. What is the most likely explanation for this observation?
The wall is the opposite pole from the magnet.
The shed is not made of iron or steel.
The magnet is not magnetized.
The nail pulled the magnet to the ground.
Answers
Answer:
the answer is B but I'm not completely sure
The reason for this observation is that the shed is not made of iron or steel.
The special magnetic property of iron is called ferromagnetism. As a result of this special magnetic property, iron can be attracted easily by a magnet. Steel is made from iron so it is also highly magnetic.
In the question, a magnet placed against the wall of a metal shed falls to the ground, where it attracts a nail. The reason for this is that the shed is not made of iron or steel.
Learn more about iron: https://brainly.com/question/25671575
Student A says electric motors use the forces between electromagnets to make something start turning. Student B says electric motors use magnets moving near coils of wire to create a current in the wire. Which student is correct?
Answers
Answer:
Student A is correct.
Explanation:
An electromagnet can be defined as the magnet that is produced by the electric current passing through a wire surrounding a metal piece. In an electric motor, magnets surrounds the the coil carrying currents. Because of the magnetic field, the current carrying coil experiences a force and it starts to rotate. Thus the electric motors uses the forces between the electromagnets to start running.
Therefore, student A is correct.
Maria is camping when she starts to smell smoke. She turns on her radio and hears that a forest fire is heading her way. How can Maria's organ systems interact to help keep her safe? Include at least five organ systems in your response.
Answers
The hormonal, cardiovascular, central nervous and respiratory systems are all involved in this response.
The body is equipped to respond to emergency situations through the fight and flight hormones secreted by the adrenal gland. This chemical messengers send a message to the brain which now causes reactions such as increased pumping of blood by the heart and a faster breathing rate by the lungs.
Hence, the hormonal, cardiovascular, central nervous and respiratory systems are all involved in this response.
Learn more about hormonal system: https://brainly.com/question/5333884
Explain the importance of having a support network when trying to achieve a healthy lifestyle. Who supports you when it comes to making healthy nutrition and exercise choices? Do you have a role model you look up to when it comes to fitness? What do you have to do in order to become a role model for your community members?
(essay)
Answers
Answer:
Who are the people for you then I can help you format the essay
Explanation: