Answer:
Can a room be gravitationally shielded? No, it can't.
Explanation:
the room cannot be gravitationally shielded because there is only one gravitational charge, in this case is mass. Mass can always be positive. the room can be electrically shielded because there are two type of charge, positive and negative charge than can cancel each other out.
You said that the useful output power from the model is 6 watts. You also said that the model is 80% efficient. We have no reason to doubt your word, so we know that
(useful output) / (input power) = 80% or 0.8
(6 watts) / (input power) = 0.8
Multiply each side by (input power): 6 watts = (0.8) (input power)
Divide each side by 0.8 : Input power = (6 watts/ 0.8)
<em>Input power = 7.5 watts</em>
Answer:
Step by step explanation
Step 1
In this step we use the definition of acceleration to determine the expression to integrate. Note that the acceleration is the derivative of velocity with respect to time.
Step 2
Perform integration on the expression from step 1. This calculation is performed as shown below.
Step 3
In this step we use the condition that at 
, the velocity 
to find the exact form of the velocity function. We substitute this point into the velocity function we found in step 2.
Step 4
We now use the function in step 3 to find out when the velocity is zero again.
The velocity is zero again when 
Both the sock and heart have only one line of symmetry. You cant fold a heart both ways. Neither can I sock soboth A and D are correct
Answer:
Free body diagram
Explanation:
A free body diagram shows all the forces acting on a body. Since force is a vector quantity, the magnitude and direction of the forces are shown in the free-body diagram.
Force is the push or pull on a body.
It can be via contact or without contact. Such non-contact forces acts via a force field.
In physics, this free body diagram is used extensively.
