Acceso
Prima
Hogar Banco de preguntas Física Archive 2025 January 21

Physics Questions from Jan 21,2025

Browse the Physics Q&A Archive for Jan 21,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

error msg
8.- Un vector de posición tiene las componentes \( x=34.6 m \) y \( y=-53.5 m \). Encuentra la magnitud del vector \( y \) su ángulo con el eje \( x \). 3.- Un depósito de plástico de 3 kg que tiene un volumen de \( 0.2 \mathrm{~m}^{3} \) es llenado con agua. Si se supone que la densidad de este líquido es \( 1000 \mathrm{~kg} / \mathrm{m}^{3} \) determina el peso del sistema combinado. 4. Two girls hold a pleture against the wall to measure its height before their mother hammers a picture hook into the wall. One girl exerts a force of 35 t and the other girl exerts a force of 55 N . The angle between their arms is 90 a) Draw a free-body diagram of the forces acting on the picture. b) Draw a triangle of forces acting on the picture. c) Calculate the weight of the plcture. ( 65 N ) 5. The diagram shows the result from an experiment that determined the resultant of three non-linear forces acting on a point. The system is in equilibrium. Neutron stars are believed to be composed of solid nuclear matter, primarly neutrons. Assuming that a neutron star has the same density as a neutron, calculate the mass (in kg ) of a small piece of a neutron star the size of a spherical pebib with a radius of 0.14 mm . Express your answer using two significant figures. How many electrons are necessary to produce a charge of -10.0 C ? Express the number of electrons to two significant figures. View Available Hint(s) \( N=\square \) electrons 16. Cuanto tiempo tardara un móvil en alcanzar una velocidad de \( 60 \mathrm{Km} / \mathrm{h} \). Si parte del reposo acelerando constantemente con una aceleración de \( 20 \mathrm{Km} / \mathrm{h}^{2} \). 22.1 A flat sheet of paper of area \( 0.250 \mathrm{~m}^{2} \) is oriented so that the normal to the sheet is at an angle of \( 60^{\circ} \) to a uniform electric field of magnitude \( 14 \mathrm{~N} / \mathrm{C} \). (a) Find the magnitude of the electric flux through the sheet. (b) Does the answer to part (a) depend on the shape of the sheet? Why or why not? (c) For what angle \( \phi \) between the nor- mal to the sheet and the electric field is the magnitude of the flux through the sheet (i) largest and (ii) smallest? Explain your answers. Neutron stars are believed to be composed of solid nuclear mather, primarily neutrons. Correct Part B Assuming that a neutron star has the same density as a neutron, calculate the mass (in kg) of a small piece of a neutron star the size of a spherical pebble wh a radius of 0.14 mm . Express your answer using two significant figures. \( \sqrt{0} \) Az ? \( x^{3} \) \( x_{b} \) \( \frac{4}{b} \) \( \sqrt{x} \) \( \sqrt[3]{x} \) \( \bar{x} \) \( \hat{x} \) (0) \( x \cdot 10^{n} \) 21 One electron has a mass of \( 9.1 \times 10^{-31} \) grams. Find the mass of 250 of electrons. 30. In the figure to the right, I placed an irregular shaped object in a graduated cylinder that contained 60 mL of water in it. After the irregular shaped object sunk to the bottom, read the bottom of the meniscus, and the water rose to 90 mL . What is the volume of the irregular shaped object?
Anterior 1 2 3 4 5 6
...
12 Próximo
1 2 3 4 5 6
...
12
Anterior Próximo
Estudiar puede ser una verdadera lucha
¿Por qué no estudiarlo en UpStudy?
Seleccione su plan a continuación
Prima

Puedes disfrutar

Empieza ahora
  • Explicaciones paso a paso
  • Tutores expertos en vivo 24/7
  • Número ilimitado de preguntas
  • Sin interrupciones
  • Acceso completo a Respuesta y Solución
  • Acceso completo al chat de PDF, al chat de UpStudy y al chat de navegación
Básico

Totalmente gratis pero limitado

  • Solución limitada
Bienvenido a ¡Estudia ahora!
Inicie sesión para continuar con el recorrido de Thoth AI Chat
Continuar con correo electrónico
O continuar con
Al hacer clic en "Iniciar sesión", acepta nuestros términos y condiciones. Términos de Uso & Política de privacidad