A flatbed truck is carrying a crate along a level road. The coefficient of static friction between the load and the bed is 0.40. The truck accelerates forward and the crate stays in its place on the truck bed.
In what direction is the force that the bed exerts on the crate? A) forward
B) backward
C) toward the center of the road
D) There is no frictional force because the crate does not move with respect to the bed.
E) There is not enough information to answer this question.
Question 2
The Schwarzchild radius is defined for a given mass M as the radius for which the escape velocity would be exactly equal to the speed of light, c. What is the expression for this radius in terms of G, M, and c?
What will be an ideal response?
This illustration shows the decibel level in various locations and associated with different ...
Warming friction using the knuckles. The first two knuckles move back and forth on the skin to ...
Circular friction over attachments at knee. Apply with fingertips or palms.
Rhythmic sliding compression down both sides of the spine, with palmar friction back up to ...
Rising sea level: Some areas will be affected by a rise of just 40 cm
A transgenic mouse carrying a mutation in the human SOD1 gene that causes paralysis of the limbs. In