A plane mirror always forms a virtual image. the image and the object are the same distance from a flat mirror, the image size is the same as the object, and the image is upright!
Answer:
300 clicks...
Explanation:
Output on 3 clicks = 10 dB
Increasing 10 by a factor of 100 equals 1000 dB so,
Its simple math, clicks will also increase in the same ratio and it shall take 300 clicks to increase the volume by a factor of 100.
That's unaccelerated motion,
and constant velocity.
The resolution of the angles measured (which is to 2d.p) is greater than the resolution that a normal protractor would show (no d.p)
e.g You can't really put a protractor down and say that's exactly 27.94 degrees, so something more accurate must've been used
Answer:
Statement 1: Someone outside the van sees the puck remain stationary with respect to the ground.
TRUE. This is because the puck relative to the ground initially was stationary. When the van starts to move forward or accelerate, the puck will tend to maintain its stationary state with the ground by moving in the opposite direction. This movement is only relative to the van and not the ground because the puck and the ground are at rest as the puck has no net force acting on it.
Someone in the van sees the puck move toward the front of the van.
FALSE. The puck has no net force acting in it so by newton's first law it should have no relative movement to the ground. In order to achieve this, the puck by newton's third law of motion must move in the opposite direction (backwards) as the van to maintain its stationary state with the ground.
The acceleration of the van with respect to the ground is > the acceleration of the puck with respect to the ground.
If the van turns to the right, the puck will hit the left wall.
WHAT DOES THIS HAVE TO DO WITH THE STATEMENTS? I'll assume the truck continues in a straight line and this statement if irrelevant. It does say "If"
The magnitude of the acceleration of the van with respect to the ground is = the magnitude of the puck's acceleration with respect to the van.
The puck is stationary with respect to the van during this acceleration.
FALSE
Explanation:
