densit table. ead is moving straight up with the constant velocity v. 1. What is the normal force that the snake exert on the table? 2. What is the tangential (parallel to the surface of the table) force that the snake exert on the table? 3. What is the minimal coefficient of friction between the snake and the table which would allow the snake to raise like that? 4. What is the total mechanical work which the snake will have done when it rises full length?

2. A child slides down frictionless playground slides of equal height, starting from rest at the top.a. Find the ratio of the child’s acceleration on slides with different angles of incline. (Show the work of breaking g into components.)?1?2= ______________________________b. Find the ratio of the child’s final speeds on slides with different angles of incline. (Hint: use energy)?1?2= ______________________________c. Find the ratio of the child’s distances down slides with different angles of incline.?1?2= _____________________________ please write your work clearly and write a detail

A 110 Kg package is to be pushed down at constant speed on an inclined plane 4 meters long from the back of a truc meters above the ground. The coefficient of kinetic friction is equal to 0.45. A force (Fa) parallel to the inclined plane should be applied to hold back the box so that it is lowered at a constant speed. A. Draw the complete Free-Body Diagram B. Work done by Fa on the box C. Work done by friction on the

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Bacteria and other prokaryotes are found deep underground, in water, and in the air. One micron (10-6 m) is a typical length scale associated with these microbes. (a) Estimate the total number of bacteria and other prokaryotes onthe Earth. (b) Estimate the total mass of all such microbes.

At its maximum speed, a 4 kg sloth can climb a height of 6 m in 2 minutes. A. What is the primary energy transformation that is taking place? B. What is the force required for the sloth to climb at a constant speed? C. How much work does this sloth do climbing the tree? D. How much does the potential energy increase?

Using the principles of energy and conservation of energy, determine how the velocity of an object at the bottom of a ramp is related to its initial starting height. 1. If the ball is initially motionless at the top of a ramp of height h, write down expressions for the initial kinetic, potential, and total energy of the ball. 2. What expressions for the kinetic, potential, and total energy of the ball as it reaches the bottom of the ramp. 3. Using the principle of conservation of energy, what expression relates the final velocity of the ball to its initial height on the ramp.

A horizontal carousel is rotating around its axis with constant angular velocity w. On the carousel there is a straight track passing through its middle. A cart of mass m is traveling along the track with constant velocity v relative to the carousel. Note that there is friction between the cart and the carousel. FR XR

1. A block is accelerated with a = 8. The initial velocity of the block is VF 2 m/s. A. If the block is accelerated for t = 3 s. Find the position of the block. B. Use the work-energy theorem to find the final velocity of the block. Where the distance d is the position you find in part (A). ins

Pls help ASAP. Pls show all work, steps and calculations please.