Login
Premium
Home Question Bank Physics Archive 2024 December 30

Physics Questions from Dec 30,2024

Browse the Physics Q&A Archive for Dec 30,2024, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

error msg
3.37 BIO Bird Migration. Canada geese migrate essen- tially along a north-south direction for well over a thousand kilo- meters in some cases, traveling at speeds up to about \( 100 \mathrm{~km} / \mathrm{h} \). If one goose is flying at \( 100 \mathrm{~km} / \mathrm{h} \) relative to the air but a \( 40-\mathrm{km} / \mathrm{h} \) wind is blowing from west to east, (a) at what angle relative to the north-south direction should this bird head to travel directly southward relative to the ground? (b) How long will it take the goose to cover a ground distance of 500 km from north to south? (Note: Even on cloudy nights, many birds can navigate by using the earth's magnetic field to fix the north-south direction.) 3.73 •• Em uma partida de futebol da Copa do Mundo, José está correndo para o gol na direção norte, com velocidade de \( 8,0 \mathrm{~m} / \mathrm{s} \) em relação ao solo. Um jogador do seu time passa a bola para ele. A bola tem velocidade de \( 12,0 \mathrm{~m} / \mathrm{s} \) e se move em uma direção de \( 37,0^{\circ} \) a nordeste em relação ao solo. Quais são o módulo e a direção da velocidade da bola em relação a José? 5. Su una portaerei un jet viene catapultato da \( 0 \mathrm{~km} / \mathrm{h} \) a \( 240 \mathrm{~km} / \mathrm{h} \) in \( 2,00 \mathrm{~s} \). Se la forza media esercitata dalla catapulta è \( 9,35 \cdot 10^{5} \mathrm{~N} \), qual è la massa del jet? Su una portaerei un jet viene catapultato da \( 0 \mathrm{~km} / \mathrm{h} \) a \( 240 \mathrm{~km} / \mathrm{h} \) in \( 2,00 \mathrm{~s} \). Se la forza media esercitata dalla catapulta è \( 9,35 \cdot 10^{5} \mathrm{~N} \), qual è la massa del jet? 11 in the blanks : (i) A body is said to be in motion if it ...... its position with respect to its surroundings. (ii) A body is said to be at ...... at an instant if its position with respect to the surrounding objects remains unchanged during that instant. (iii) The ...... of a body is defined as the rate of change of its position with respect to its surroundings irrespective of direction. (iv) Speed is a ...... quantity. (v) The ..... of a body is the rate of change of its position with respect to its surroundings in a particular direction. (vi) Velocity is ...... quantity. (vii) If a body travels equal distances in equal intervals of time in the same direction it is said to be moving with a ..... velocity. (viii) The rate of change of velocity of a body is called its...... (ix) The ..... velocity of a body is the velocity with which the distance travelled by the body in the same interval of time is the same as with variable velocity. (x) If the velocity of a body changes by equal amounts in equal intervals of time, the body is said to move with ...... (xi) If the velocity of a body changes by unequal amounts in equal intervals of time, the body is said to move with ...... . 6. एक गोलीय कोश की आन्तरिक त्रिज्या \( R_{2} \) है तथा द्रव्यमान \( M \) पूरे कोश में एकसमान रूप से वितरित है, एक बिन्दु द्रव्यमान \( m \) का कण जो कि बाहरी त्रिज्या के बाहर की तरफ व केन्द्र से \( d \) दूरी पर स्थित है के द्वारा कोश पर लगाये जाने वाले गुरूप्दाकर्षण बल का परिणाम होगा Un cubo de oro se sumerge totalmente en hidrógeno. Si tiene un peso con una magnitud de \( 32,93 \mathrm{~N} \) ¿Cuál es el volumen del fluido desalojado? \( \begin{array}{l}\text { a. } 47,29 \mathrm{~m}^{\wedge} 3 \\ \text { b. } 375 \mathrm{~m}^{\wedge} 3 \\ \text { c. } 37,29 \mathrm{~m}^{\wedge} 3\end{array} \) Se sumerge una bola de aluminio maciza totalmente en helio. Si el fluido tiene un peso de \( 83,2 \mathrm{~N} \) ¿Cuál es el volumen del fluido desalojado? a. \( 49 \mathrm{~m}^{\wedge} 3 \) b. \( 76,51 \mathrm{~m}^{\wedge} 3 \) c. \( 47,51 \mathrm{~m}^{\wedge} 3 \) Se sumerge un cubo de hierro en un fluido, el peso de este es de \( 85,38 \mathrm{~N} \) y el volumen es de \( 32,7 \mathrm{~m}^{\wedge} 3 \) ¿Cuál es la densidad del fluido en cuestión? a. \( 0,26 \mathrm{~kg} / \mathrm{m}^{\wedge} 3 \) b. \( 1,26 \mathrm{~kg} / \mathrm{m}^{\wedge} 3 \) c. \( 0,98 \mathrm{~kg} / \mathrm{m}^{\wedge} 3 \) A sensitive galvanometer, the maximum curent that its coil can measure is \( 5 \mathrm{~m} / \), and when it is used to measure an electne current of intensity \( 2 \times 10^{\prime} 1 \mathrm{LA} \) its pointer deflects by an angle \( 30^{\circ} \), so the maximum angle of deflection of the galvanometer pointer from zero position is .......... (A) \( 25^{\circ} \) (B) \( 50^{\circ} \) (C) \( 75^{\circ} \) (D) \( 90^{\circ} \)
Prev 1 2 3 Next
1 2 3
Prev Next
Study can be a real struggle
Why not UpStudy it?
Select your plan below
Premium

You can enjoy

Start now
  • Step-by-step explanations
  • 24/7 expert live tutors
  • Unlimited number of questions
  • No interruptions
  • Full access to Answer and Solution
  • Full Access to PDF Chat, UpStudy Chat, Browsing Chat
Basic

Totally free but limited

  • Limited Solution
Welcome to UpStudy!
Please sign in to continue the Thoth AI Chat journey
Continue with Email
Or continue with
By clicking “Sign in”, you agree to our Terms of Use & Privacy Policy