1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tcecarenko [31]
3 years ago
12

Can u read a ruler it's very hard

Physics
1 answer:
iris [78.8K]3 years ago
8 0

Answer:

A. 1 inch

B. 1/2 inch

C. 3/4 inch

D. 1/8 inch

E. 1 7/8 inch

F. 1 1/2 inch

G. 3 1/15 inch

H. 2 5/8 inch

I. 2 1/4 inch

You might be interested in
23) A high school website directs parents to not allow student access to blue laser pointers or allow the students to bring them
vekshin1
Mainly because of the higher energy of blue light than red light.

In fact, light is made of photons, each one carrying an energy equal to
E=hf
where h is the Planck constant while f is the frequency of the light.
The frequency of red light is approximately 450 THz, while the frequency of blue light is about 650 Hz. Higher frequency means higher energy, so blue light is more energetic than red light and therefore it can cause more damages than red light.
6 0
3 years ago
What can happen if the president chooses to veto a law that has been passed? The law returns to being introduced in one of the h
andre [41]

Answer:

The president s decision can be overridden by a majority of Congress.

Explanation:

If congress gets the majority (2/3) vote to pass it, its passed

4 0
3 years ago
What is the total charge of barium oxide?
vichka [17]
Barium cation has +2 charge and oxide anion has −2 charge
3 0
3 years ago
Read 2 more answers
A radioactive substance decays according to the formula w = 20e¡kt grams where t is the time in hours. a find k given that after
blagie [28]
W=20 e(-kt)  
A. Rearranging gives k= -(ln(w/20)/t 
 Substituting w= 10 and solving gives k=0.014 
 B. Using W=20e(-kt). After 0 hours, W=20. After 24 hours, W=14.29g. After 1 week (24x7=168h) W=1.9g 
 C. Rearranging gives t=-(ln(10/20)/k. Substituting w=1 and solving gives t=214 hours. 
 D. Differentiating gives dW/ dt = -20ke(-kt). Solving for t=100 gives dW/dt = 0.07g/h. Solving for t=1000 gives 0.0000002g/h 
 E. dW/dt = -20ke(-kt). But W=20e(-kt) so dW/dt = -kW
5 0
3 years ago
La tension que se transmite en la cuerda BD es de 75 lb. Calcula el momento de fuerza generada por la cuerda respecto al punto C
Bas_tet [7]

Answer:

Mc = 1920[lb*in]

Explanation:

Para poder solucionar este problema debemos realizar un análisis estático, por tal motivo lo primero es realizar un diagrama de cuerpo libre con las respectivas fuerzas actuando sobre la barra ABC. DE igual manera calcular la geometría de la configuración mostrada.

El diagrama de cuerpo libre se puede ver en la imagen adjunta, con la solución de este problema.

Lo primero es determinar el angulo t, el cual por medio de las propiedades del triangulo rectángulo se puede determinar.

Con este angulo (t) ya determinado, fijamos la atención en el triangulo BCD, este triangulo no es rectángulo, pero por medio de la ley de senos podemos determinar el angulo omega.

Después de determinar el angulo omega, restamos el angulo (t) para poder determinar el angulo (a).

Seguidamente realizamos una sumatoria de momentos alrededor del punto C, utilizado las respectivas fuerzas con los ángulos descompuestos.

El momento en el punto C es de 1920 [Lb*in].

Nota: ya que no se menciona la fuerza en el punto A, esta se desprecia y no se tiene en cuenta en los calculos. En la imagen adjunta se puede ver el procedimiento desarrollado.

7 0
3 years ago
Other questions:
  • 1.imagine you were able to throw a ball in a frictionless environment such as outer space.once you let go of the ball,what will
    11·1 answer
  • Which organisms break down dead matter and waste into nonliving elements?
    8·2 answers
  • Can you access an instance variable from a static method? explain why or why not.
    11·1 answer
  • Three positive charges A, B, and C, and a negative charge D are placed in a line as shown in the diagram. All four charges are o
    13·1 answer
  • Can a flashlight cause skin cancer
    7·1 answer
  • Which is most likey to contain brackish water?
    12·2 answers
  • What is the mystery behind black hole​
    6·2 answers
  • A 10kg object rests on a frictionless surface when it is struck by a 300N force. At what rate will it accelerate?
    11·2 answers
  • Harnessing tidal power would involve:_______.a) letting in-flowing and/or out-flowing tide flow through turbines in a dam.b) hug
    7·1 answer
  • A particle zips by us with a Lorentz factor (γ) of 1.12. Then another particle zips by us moving at twice the speed of the first
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!