Homework Answers
here,
A)
length of pedulum , l = 70 cm = 0.7 m
the period , T = 2*pi*sqrt(l/g)
T = 2*pi*sqrt(0.7/9.81)
T = 1.68 s
B)
for the pendulum in elevator
the net accelration is zero
the time period , T = 2*pi*sqrt(l/a)
T = infinite
Add Answer to:
▼ Part A What is the period of a simple pendulum 70 cm long on the...
A pendulum has a period of 1.71 s on Earth. What is its period on Mars,...
A pendulum has a period of 1.71 s on Earth.
What is its period on Mars, where the acceleration of gravity is
about 0.37 that on Earth?
An unfingered guitar string is 0.68 m long and is tuned to play
E above middle C (330 Hz).
How far from the nut of the guitar must a fret (and your finger)
be placed on this string to play F♯ (370 Hz)?
A pendulum has a period of 1.71 s on Earth. Part...
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 45.0...
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 45.0 cm . The explorer finds that the pendulum completes 107 full swing cycles in a time of 131 s. Part A What is the magnitude of the gravitational acceleration on this planet? Express your answer in meters per second per second. ► View Available Hint(s) I AM A o 2 ? 9 planet = 16.5 m/s2 Submit Previous Answers X Incorrect; Try Again; 29...
1 cm, o cm, o cm) Express your answers using two significant figures.Enter your answers numerically...
1 cm, o cm, o cm) Express your answers using two significant figures.Enter your answers numerically separated by commas. An electron moves along the zaxis with u: = 5.9 × 107 m/s. As it passes the origin, what are the strength and direction of the magnetic field at the following (, y, z) positions? SubmitP Previous Answers Request Answer Incorrect; Try Again; 8 attempts remaining; no points deducted Your answer does not have the correct number of comma-separated terms. Part...
A 1.3-cm-tall object is 18 cm in front of a convex mirror that has a -62...
A 1.3-cm-tall object is 18 cm in front of a convex mirror that has a -62 cm focal length. Calculate the position and height of the image. Express your answer to two significant figures and include the appropriate units. μΑ ? - 25 cm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Express your answer to two significant figures and include the appropriate units. HA ? h' = 0.53 cm Submit Previous Answers Request...
Part A A simple pendulum consists of a weight with mass 2.5 kg suspended from a...
Part A A simple pendulum consists of a weight with mass 2.5 kg suspended from a 0.45 m long wire. The weight is pulled so that the wire makes an angle of 6° with the vertical, and then the weight is released. How long will it take the weight to reach its maximum height again? V AQ O 2 ? .25 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
A silver wire is 5.4 m long and 0.69 mm in diameter. Part A What is...
A silver wire is 5.4 m long and 0.69 mm in diameter. Part A What is its resistance? Express your answer using two significant figures. R = Ω Previous AnswersRequest Answer Incorrect; Try Again; 5 attempts remaining Provide Feedback it keeps saying my calculations are off this should be a simple formula
Problem 33.77 Part A Constants I Periodic Table A microscope has a 2.1 -em-focal-length eyepiece and...
Problem 33.77 Part A Constants I Periodic Table A microscope has a 2.1 -em-focal-length eyepiece and a 0.90 -cm objective. Assuming a relaxed normal eye Calculate the position of the object if the distance between the lenses is 17.1 cm Express your answer using two significant figures d11.9 cTm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Caiculate the total magnification Express your answer using two significant figures Submit Previous Answers Reauest Answer Incorrect;...
An electron accelerated from rest through a voltage of 760 V enters a region of constant...
An electron accelerated from rest through a voltage of 760 V enters a region of constant magnetic field. Part A If the electron follows a circular path with a radius of 27 cm, what is the magnitude of the magnetic field? Express your answer using two significant figures. SubmitP Previous Answers Request Answer X Incorrect: Try Again; 15 attempts remaining Provide Feedback
Two 10-cm-diameter electrodes 0.44 cm apart form a parallel-plate capacitor. The electrodes are attached by metal...
Two 10-cm-diameter electrodes 0.44 cm apart form a parallel-plate capacitor. The electrodes are attached by metal wires to the terminals of a 14 V battery. After a long time, the capacitor is disconnected from the battery but is not discharged. Part A What are the charge on each electrode, the electric field strength inside the capacitor, and the potential difference between the electrodes right after the battery is disconnected? Express your answer to two significant figures and include the appropriate...
A string vibrates at its third-harmonic frequency Review Part A A string vibrates at its third-harmonic frequency. The amplitude at a point 42 cm from one end is half the maximum amplitude How long i...
A string vibrates at its third-harmonic frequency
Review Part A A string vibrates at its third-harmonic frequency. The amplitude at a point 42 cm from one end is half the maximum amplitude How long is the string? Express your answer to two significant figures and include the appropriate units. Value Units Review Part A A metal wire under tension To vibrates at its fundamental frequency For what tension will the third-harmonic frequency be the same as the fundamental frequency at...
A pendulum has a period of 1.71 s on Earth.
What is its period on Mars, where the acceleration of gravity is
about 0.37 that on Earth?
An unfingered guitar string is 0.68 m long and is tuned to play
E above middle C (330 Hz).
How far from the nut of the guitar must a fret (and your finger)
be placed on this string to play F♯ (370 Hz)?
A pendulum has a period of 1.71 s on Earth. Part...
After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 45.0 cm . The explorer finds that the pendulum completes 107 full swing cycles in a time of 131 s. Part A What is the magnitude of the gravitational acceleration on this planet? Express your answer in meters per second per second. ► View Available Hint(s) I AM A o 2 ? 9 planet = 16.5 m/s2 Submit Previous Answers X Incorrect; Try Again; 29...
1 cm, o cm, o cm) Express your answers using two significant figures.Enter your answers numerically separated by commas. An electron moves along the zaxis with u: = 5.9 × 107 m/s. As it passes the origin, what are the strength and direction of the magnetic field at the following (, y, z) positions? SubmitP Previous Answers Request Answer Incorrect; Try Again; 8 attempts remaining; no points deducted Your answer does not have the correct number of comma-separated terms. Part...
A 1.3-cm-tall object is 18 cm in front of a convex mirror that has a -62 cm focal length. Calculate the position and height of the image. Express your answer to two significant figures and include the appropriate units. μΑ ? - 25 cm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Express your answer to two significant figures and include the appropriate units. HA ? h' = 0.53 cm Submit Previous Answers Request...
Part A A simple pendulum consists of a weight with mass 2.5 kg suspended from a 0.45 m long wire. The weight is pulled so that the wire makes an angle of 6° with the vertical, and then the weight is released. How long will it take the weight to reach its maximum height again? V AQ O 2 ? .25 Submit Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining
Problem 33.77 Part A Constants I Periodic Table A microscope has a 2.1 -em-focal-length eyepiece and a 0.90 -cm objective. Assuming a relaxed normal eye Calculate the position of the object if the distance between the lenses is 17.1 cm Express your answer using two significant figures d11.9 cTm Submit Previous Answers Request Answer X Incorrect; Try Again; 4 attempts remaining Part B Caiculate the total magnification Express your answer using two significant figures Submit Previous Answers Reauest Answer Incorrect;...
An electron accelerated from rest through a voltage of 760 V enters a region of constant magnetic field. Part A If the electron follows a circular path with a radius of 27 cm, what is the magnitude of the magnetic field? Express your answer using two significant figures. SubmitP Previous Answers Request Answer X Incorrect: Try Again; 15 attempts remaining Provide Feedback
Two 10-cm-diameter electrodes 0.44 cm apart form a parallel-plate capacitor. The electrodes are attached by metal wires to the terminals of a 14 V battery. After a long time, the capacitor is disconnected from the battery but is not discharged. Part A What are the charge on each electrode, the electric field strength inside the capacitor, and the potential difference between the electrodes right after the battery is disconnected? Express your answer to two significant figures and include the appropriate...
A string vibrates at its third-harmonic frequency
Review Part A A string vibrates at its third-harmonic frequency. The amplitude at a point 42 cm from one end is half the maximum amplitude How long is the string? Express your answer to two significant figures and include the appropriate units. Value Units Review Part A A metal wire under tension To vibrates at its fundamental frequency For what tension will the third-harmonic frequency be the same as the fundamental frequency at...
Most questions answered within 3 hours.
-
You purchase your daily coffee at the Chemist’s Coffeehouse and
have a choice of two cups:...
asked 10 minutes ago -
Problem 16-51 Sales
Activity Variance (LO 16-3)Odessa, Inc., reports the following
information concerning operations for the...
asked 35 minutes ago -
Pictured on the right are thee point charges Q1 = 18.4 μC, Q2 =
-30.6 μC,...
asked 37 minutes ago -
A graduate student is conducting research in psychology and
needs to obtain the IQ scores of...
asked 1 hour ago -
R2.84: There are 2 defective products in a production lot of 10.
An inspector randomly selected...
asked 2 hours ago -
Consider the following equilibrium system: COCl2(g) CO(g) +
Cl2(g) A 10.00 L evacuated flask is filled...
asked 3 hours ago -
1) What are the two distinct steps that one needs to perform
when developing a data...
asked 3 hours ago -
2) Write a C++ program that uses a class called “Degree” to
obtain the trigonometric
values...
asked 4 hours ago -
1. In eukaryotic cells the genomes of
&
asked 4 hours ago -
The standard enthalpy of propanol (C3H7OH) is -303.0 kJ/mol.
Compute both of the
gross and net...
asked 4 hours ago -
Why PWM using H-bridge for control motor speed is more power
effiecient than the linear amplifier...
asked 4 hours ago -
In 1999, Carly Fiorina famously said,"I hope that we are at a
point that everyone is...
asked 4 hours ago