A 15-cm-diameter aluminum ball is to be heated from80°C to an average temperature of 200°C. Taking t
7:09
A 15-cm-diameter aluminum ball is to be heated from80°C to an average temperature of 200°C. Taking t
Жыл бұрын
A fabric used in air-inflated structures is subjected to a biaxial loading that results in normal st
21:25
A fabric used in air-inflated structures is subjected to a biaxial loading that results in normal st
2 жыл бұрын
A material point is observed to start yielding at the state of plane stress represented in the figur
12:39
A material point is observed to start yielding at the state of plane stress represented in the figur
2 жыл бұрын
For the given state of stress, determine (a) the orientation of the planes of maximum in-plane shear
6:41
For the given state of stress, determine (a) the orientation of the planes of maximum in-plane shear
2 жыл бұрын
When walking toward a concave mirror you notice that the image flips at a distance of 0.50 m. What i
2:52
When walking toward a concave mirror you notice that the image flips at a distance of 0.50 m. What i
2 жыл бұрын
How far from a concave mirror (radius 24.0 cm) must an object be placed if its image is to be at inf
5:04
How far from a concave mirror (radius 24.0 cm) must an object be placed if its image is to be at inf
2 жыл бұрын
A solar cooker, really a concave mirror pointed at the Sun, focuses the Sun's rays 18.8 cm in front
5:29
A solar cooker, really a concave mirror pointed at the Sun, focuses the Sun's rays 18.8 cm in front
2 жыл бұрын
Two plane mirrors meet at a 135 angle, Fig. 32-45. If light rays strike one mirror at 38' as shown,
7:16
Two plane mirrors meet at a 135 angle, Fig. 32-45. If light rays strike one mirror at 38' as shown,
2 жыл бұрын
The block of glass (n = 1.5) shown in cross section in Fig. 32-51 is surrounded by air. A ray of lig
12:44
The block of glass (n = 1.5) shown in cross section in Fig. 32-51 is surrounded by air. A ray of lig
2 жыл бұрын
The speed of light in ice is 2.29 X 10^8 m/s, What is the index of refraction of ice?
1:48
The speed of light in ice is 2.29 X 10^8 m/s, What is the index of refraction of ice?
2 жыл бұрын
A light beam coming from an underwater spotlight exits the water at an angle of 56.0'. At what angle
5:33
A light beam coming from an underwater spotlight exits the water at an angle of 56.0'. At what angle
2 жыл бұрын
A light beam strikes a 2.0-cm-thick piece of plastic with a refractive index of 1.62 at a 45 angle.
12:56
A light beam strikes a 2.0-cm-thick piece of plastic with a refractive index of 1.62 at a 45 angle.
2 жыл бұрын
Rays of the Sun are seen to make a 33.0 angle to the vertical beneath the water. At what angle above
6:52
Rays of the Sun are seen to make a 33.0 angle to the vertical beneath the water. At what angle above
2 жыл бұрын
A flashlight beam strikes the surface of a pane of glass(n = 1.56) at a 63' angle to the normal. Wha
5:00
A flashlight beam strikes the surface of a pane of glass(n = 1.56) at a 63' angle to the normal. Wha
2 жыл бұрын
A diver shines a flashlight upward from beneath the water at a 38.5° angle to the vertical. At what
5:04
A diver shines a flashlight upward from beneath the water at a 38.5° angle to the vertical. At what
2 жыл бұрын
A helium-filled balloon escapes a child's hand at sea level and 20.0 C. When it reaches an altitude
3:48
A helium-filled balloon escapes a child's hand at sea level and 20.0 C. When it reaches an altitude
2 жыл бұрын
It is observed that 55.50 mL of water at 20' C completely fills a container to the brim. When the co
10:03
It is observed that 55.50 mL of water at 20' C completely fills a container to the brim. When the co
2 жыл бұрын
What is the pressure inside a 38.0-L container holding 105.0 kg of argon gas at 20.0'C?
6:29
What is the pressure inside a 38.0-L container holding 105.0 kg of argon gas at 20.0'C?
2 жыл бұрын
A police car sounding a siren with a frequency of1280 Hz is traveling at 120.0 km/h. (a) What freque
18:52
A police car sounding a siren with a frequency of1280 Hz is traveling at 120.0 km/h. (a) What freque
2 жыл бұрын
Two automobiles are equipped with the same single frequency horn. When one is at rest and the other
6:58
Two automobiles are equipped with the same single frequency horn. When one is at rest and the other
2 жыл бұрын
A bat at rest sends out ultrasonic sound waves at50.0 kHz and receives them returned from an object
7:08
A bat at rest sends out ultrasonic sound waves at50.0 kHz and receives them returned from an object
2 жыл бұрын
The predominant frequency of a certain fire truck's siren is 1350 Hz when at rest. What frequency do
4:51
The predominant frequency of a certain fire truck's siren is 1350 Hz when at rest. What frequency do
2 жыл бұрын
A jet plane emits 5.0 X 105 J of sound energy per second. (a) What is the sound level 25 m away? Ai.
10:15
A jet plane emits 5.0 X 105 J of sound energy per second. (a) What is the sound level 25 m away? Ai.
2 жыл бұрын
At a rock concert. a dB meter registered 130 dB when placed 2.2 m in front of a loudspeaker on the s
8:03
At a rock concert. a dB meter registered 130 dB when placed 2.2 m in front of a loudspeaker on the s
2 жыл бұрын
A person standing a certain distance from an airplane with four equally noisy jet engines is experie
7:06
A person standing a certain distance from an airplane with four equally noisy jet engines is experie
2 жыл бұрын
If two firecrackers produce a sound level of 95 dB when fired simultaneously at a certain place, wha
8:28
If two firecrackers produce a sound level of 95 dB when fired simultaneously at a certain place, wha
2 жыл бұрын
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff
2:34
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff
2 жыл бұрын
A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other e
5:52
A mass resting on a horizontal, frictionless surface is attached to one end of a spring; the other e
2 жыл бұрын
A 0.35-kg mass at the end of a spring oscillates 2.5 times per second with an amplitude of 0.15 m. D
8:48
A 0.35-kg mass at the end of a spring oscillates 2.5 times per second with an amplitude of 0.15 m. D
2 жыл бұрын
Пікірлер
@BetelhemWorede
@BetelhemWorede 7 күн бұрын
😂😂😂
@sabfurtado9
@sabfurtado9 8 күн бұрын
thank u
@rommel8549
@rommel8549 14 күн бұрын
Thank you so much!
@SofiaPachecoCarrasquillo
@SofiaPachecoCarrasquillo 19 күн бұрын
why not change omega to rad/s
@angelchen3541
@angelchen3541 20 күн бұрын
Thank you! Hey can you do this problem An 18-kg sled starts up a 28˚ incline with a speed of 2.3 m/s. The coefficient of kinetic friction is µ=0.25. (𝑎) How far up the incline does the sled travel? (𝑏) What condition must you put on the coefficient of static friction if the sled is not to get stuck at the point determined in part (𝑎)? (𝑐) If the sled slides back down, what is its speed when it returns to its starting point?
@patrickwangrui
@patrickwangrui 21 күн бұрын
you made an error...
@crishernandez1673
@crishernandez1673 21 күн бұрын
I got two values not sure if I choose both or not?
@megaturtle24682
@megaturtle24682 24 күн бұрын
omg bru your goated
@Anesthetist
@Anesthetist 24 күн бұрын
Absolute Legend
@SofiaPachecoCarrasquillo
@SofiaPachecoCarrasquillo 25 күн бұрын
If there is a physics problem that you don't solve, then I don't understand it!! U r amazinggg
@dardar5511
@dardar5511 26 күн бұрын
bros carrying my grades
@AlexMartinez-iv6wz
@AlexMartinez-iv6wz 26 күн бұрын
You’re a life saver, I was stuck on this homework question 🙏🏼🙏🏼🙏🏼🙏🏼
@natashasteward6145
@natashasteward6145 26 күн бұрын
Man, i wish you solved for T instead of suggesting the calculator. I can use a calculator but lose points if i cant show my work. ex. using the quadratic formula to solve for T
@KM41veKM41_2.sevdalısı
@KM41veKM41_2.sevdalısı 29 күн бұрын
Hocam ben analmadım (Kargo emojisi)
@JRyanEE
@JRyanEE 29 күн бұрын
You have to add the mass of the car and the person when you use the formula.
@SofiaPachecoCarrasquillo
@SofiaPachecoCarrasquillo 29 күн бұрын
The only reason I understand physics is because of you
@itz_lilbrownbear_gacha1139
@itz_lilbrownbear_gacha1139 Ай бұрын
thank you so much! I am freshman rn and this is soo confusing but you explained it very well!
@hilaryvazquez3257
@hilaryvazquez3257 Ай бұрын
Thank you so much
@sergeimetuncc
@sergeimetuncc Ай бұрын
Спасибо брат
@davidfellah8974
@davidfellah8974 Ай бұрын
No free body diagram ?
@victoriaburns1721
@victoriaburns1721 Ай бұрын
I love how fast you talk
@Debbydee1
@Debbydee1 Ай бұрын
Thank you
@KrenjilaSharma
@KrenjilaSharma Ай бұрын
THANKYOUU
@Urcristian0R0nald0-g3m
@Urcristian0R0nald0-g3m Ай бұрын
It's not 430N never!!!!!!
@Urcristian0R0nald0-g3m
@Urcristian0R0nald0-g3m Ай бұрын
Did you get a job 😁
@MegaLoDunn
@MegaLoDunn Ай бұрын
FYI: Fa should also be negative because it's pushing the board clockwise around the pivot point Fb. It's the same rotational direction as the gravity.
@Himeshfan-22
@Himeshfan-22 Ай бұрын
can we get this by taking force values - 38*g - T1 = 38*a, T2 - 35*g = 35*a, and the torque equation of the cylindrical pulley?
@chelseazacher3363
@chelseazacher3363 Ай бұрын
Thank you so much. I learn so much from your videos that wasn't explained in lecture and isn't always explained concisely in the textbook. I appreciate you and hope you continue doing this!
@hello-zh3jr
@hello-zh3jr Ай бұрын
thanks for not having an indian accent
@wik.o
@wik.o Ай бұрын
IF the applied torque ended up being positive, would we have to write a negative sign for the friction torque when calculating the net torque?
@ChelseaCooper-cg6dp
@ChelseaCooper-cg6dp Ай бұрын
Hi! Thank you for making this video! I was wondering why you didn't cancel out the mass?
@arevyah9517
@arevyah9517 Ай бұрын
Everytime you say torque it sounds like you're saying twerk 🤣 Great video, you're a lifesaver!
@toprak6991
@toprak6991 Ай бұрын
i dont think the c and d parts are correct cause at first mailbag is going to up and then down so the velocity at t=0.15 is zero and then its going down
@starryeyes2092
@starryeyes2092 Ай бұрын
I'm in love w you
@kuaf5402
@kuaf5402 Ай бұрын
By far the most helpful channel for help in my physics class
@hotman718
@hotman718 Ай бұрын
Nice man, I was a bit confused with how fast my professor went. You just basically work backwards doing the anti derivates to get back to the original function, then just plugin the given values to solve for the constants. Pretty easy.
@p_snorted
@p_snorted Ай бұрын
watching this at 2x speed to beam the knowledge straight into my brain
@Melon21
@Melon21 Ай бұрын
kinetic friction coefficient just to throw you off?
@elenac8007
@elenac8007 Ай бұрын
Thank you!
@godwinclement7520
@godwinclement7520 Ай бұрын
THANK YOU 🙏 SO MUCH👍THAT WAS VERY HELPFUL. NOW I CAN GO BACK AND TACKLE PHYSICS PROBLEM S THAT I AM CURRENTLY WORKING ON. YOU WERE VERY DETAILED AND LUCID!!!! Stay Well.
@SidraTalaji
@SidraTalaji Ай бұрын
I love you keep up the good work bro
@hallucinatinghawk3917
@hallucinatinghawk3917 Ай бұрын
Thank-you sir
@rakecoach5748
@rakecoach5748 Ай бұрын
guesswork on an online math homework where you cant tell what the points are on the y axis to even use is utter bullshit. f my school for that. complete crap work.
@fraggatron6114
@fraggatron6114 Ай бұрын
How is negative work being done when the ball switches directions
@deiji_hime
@deiji_hime Ай бұрын
he watered my crops and saved my life.
@oomfiessoup
@oomfiessoup 2 ай бұрын
THANK YOU
@ScytheAnimatez
@ScytheAnimatez 2 ай бұрын
Thanks bro
@kadencarroll3109
@kadencarroll3109 2 ай бұрын
you have an asnwer for everything man
@sonyduck8663
@sonyduck8663 2 ай бұрын
isn't mgcos theta supposed to be negative since its going down?
@NishaA-pg7up
@NishaA-pg7up 2 ай бұрын
WHY didnt you use deltaL/deltattime to find torque
@keving847
@keving847 Ай бұрын
that also works, I used that way