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    HippocampeRose8512avatar
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    Secondary III • 2d

    Si un objet au repos accélère par 1,5 km/h chaque seconde, quelle sera sa vitesse après

    une minute?

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    SaturneSigma4700avatar
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    Secondary V • 29d

    Bonsoir, en fait je ne comprends pas quoi faire après avoir fait le calcul des forces et de l’accélération de chacune de mes essais.

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    ZombieAdorable5428avatar
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    Secondary V • 1mo.

    Hello, shouldn't i get the same answer using the law of sines compared to the component methode? Why is it, if it is.... Wrong to use the law of sines? Thanks.

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    ZombieAdorable5428avatar
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    Secondary V • 1mo.

    I dont understand why they get Ekb = EkC PLUS EgpC.

    Can we say Ekc = E gpD? Or we cannot because it is not acting like a fulcrum/ ramp?Thanks

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    PapillonOmicron8599avatar
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    Secondary V • 1mo.

    Salut, je me demande qui prend plus de travail : monter rapidement ou lentement un escalier ? c'est pour mon cours de physique et je ne comprends pas. Aussi, est-ce possible de faire du travail sans produire de puissance ? et vice versa?

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    RubisBionique1381avatar
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    Secondary V • 1mo.

    Est-ce quelqu’un pourrait m’expliquer le probleme suivant en physique. On est dans la conservation de l’energie.

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    RubisBionique1381avatar
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    Secondary V • 1mo.

    Est-ce quelqu’un pourrait m’expliquer le probleme suivant en physique. On est dans la conservation de l’energie.

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    RubisBionique1381avatar
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    Secondary V • 1mo.

    Est-ce quelqu’un pourrait m’expliquer le probleme suivant en physique. On est dans l’energie potentielle.

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    AnanasBrave9887avatar
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    Secondary V • 1mo.

    Bonjour,

    Je ne comprend pas pourquoi l’angle d’incidence est de 45 degrés ici, car logiquement il est confondu avec la normale. En conséquence, il devrait être de 0. Merci en avance et bonne journée.

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    I don’t understand this theory question

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    I really don’t understand how to do this question I keep getting the wrong acceleration

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    I need help with these physics questions this is from a past exam to help me prepare for my exam

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    I need help with these physics questions this is from a past exam to help me prepare for my exam

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    I need help with these physics questions this is from a past exam to help me prepare for my exam

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    Hello I am having trouble with this past exam physics question specifically part c I showed my work for part a and b but now I’m confused for part c p, this is not graded it’s just practice for my upcoming exam.

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    Hello I am having trouble with this past exam physics question specifically part c I showed my work for part a and b but now I’m confused for part c p, this is not graded it’s just practice for my upcoming exam.

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    EfficientEagle2708avatar
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    Postsecondary • 1mo.

    i am having trouble with tthis physics question specifically question c)

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    ElfeDynamique3587avatar
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    Grade 3 • 2mo.

    j'avais demander dans la zone d'entraide si m=e2×H0+c et possible quelqu'un m'avais répondue il faut déja que tu connais les variables je sais la définition des variable m=mass e2=énergie au carré H0=au boson de higgs et c=la vittesse de la lumière. maintenant poutineorange5768 donne moi une vrai réponse s'il vous plez

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    PeacefulPumpkin8091avatar
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    Secondary V • 2mo.

    Why does the answer key use a positive value for g rather than negative as you see in the book page 77.? Is this an error? Is this because the force is going upwards against gravity and in the example in the book its the cart going across the table being pulled down by a hanging mass.. maybe inanswered my own question...Thanks

    Regarding number 6 dynamics

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    PeacefulPumpkin8091avatar
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    Secondary V • 2mo.

    Why did they subtract the resultant force (Fr=ma) by F ( I'm assuming Fg=mg)? Did they do T=m (g-a)??? To find its tension...??

    That would give me a closer number. 1.17 x 10 ^5 . Close but no cigar....

    Thanks,

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    PeacefulPumpkin8091avatar
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    Secondary V • 2mo.

    Is this an error in the answer key? Regarding Chapter 2 Dynamics. Thanks.

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    SweetBee595avatar
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    Secondary III • 3mo.

    What are some devices that rely on magnetism or electromagnetism?

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    MelonAdorable6131avatar
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    Secondary V • 3mo.

    Je ne comprends pas comment faire cette question. Merci beaucoup.

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    PeacefulPumpkin8091avatar
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    Secondary V • 3mo.

    In the answer key they had water on top of the boundary and ice at the bottom. I assumed that since water is heavier than ice i inverted its position. The arrows , rays and etc are correct but as i said previously it's inverted. Would this be considered wrong?

    Thanks.

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    PeacefulPumpkin8091avatar
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    Secondary V • 4mo.

    For question 1.c Chapter 3 Projectiles : I did like they did to solve for t by using the Vfx formula last time (b). Unfortunately they used the quadratic formula this time... The opposite of what I did...I'm lost....🤦‍♂️ Here's my work below..

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  • Verified by Alloprof
    PeacefulPumpkin8091avatar
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    Secondary V • 4mo.

    For question 1. c I did like SOFAD do last time, to solve for t from Vfx formula and they used the quadratic formula...🤦‍♂️.

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    PeacefulPumpkin8091avatar
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    Secondary V • 4mo.

    Any suggestions for my error on b? Thanks.

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    EfficientEagle2708avatar
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    Postsecondary • 4mo.

    I’m having a lot of trouble when two ropes help eachother to hold something like how do I know which rope will hold how much on the x axis in this question?

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    EfficientEagle2708avatar
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    Postsecondary • 4mo.

    I really don’t know how to approach this

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    LoutreDelta4793avatar
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    Secondary V • 4mo.

    Bonjour,


    je fais des Exercices de graphique

    X en fonction de t , vitesse en fonction du temps et acceleration en fonction du temps


    comment puis je etre sur de mes reponses si je n’es pas de corriger ?

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