Why not to avoid the weight of the logs

Assignment Help Physics

Reference no: EM1393016

Q. A kg steel ball strikes a wall with a speed of m/s at an angle of with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for s, what is the average force exerted on the ball by the wall?

Q. A raft is made of 13 logs lashed together. Each is 37 cm in diameter and has a length of 5.6 m. How many people can the raft hold before they start getting their feet wet, assuming the average person has a mass of 70 kg? Do not avoid the weight of the logs. Assume the density of wood is 600 kg/m.

Reference no: EM1393016

Questions Cloud

How high does rocket rise above the ground : A rocket moves upward, starting from rest with an acceleration of 33.4 m/s2 for 3.47 s. It runs out of fuel at the end of the 3.47 s but does not stop. How high does it rise above the ground.

Analysis of journal articles : Conduct an analysis of four management journal articles, at least two of which must be peer reviewed. The following must be included in my analysis:

Reason or evidence to reject the claim : Assume gasoline prices for a region are normally distributed. Do the data you obtained provide enough evidence to reject the claim? Use a 1% level of signi?cance.

What is the positive or negative acceleration of the bus : Assume we have an infinitely long wire carrying a current of 2-A. It is bent into an L-shape extending into positive infinities along the x- and y- axes. Find out the magnitude of the magnetic field at a point P with coordinates (0.3 m, 0.3 m).

Why not to avoid the weight of the logs : A kg steel ball strikes a wall with a speed of m/s at an angle of with the surface. It bounces off with the similar speed and angle. If the ball is in contact with the wall for s, what is the average force exerted on the ball by the wall.

Phases of an action potiental : Determine the phases of an action potiental and what channels open/close, what causes them to open/close, what ion moves, and in which direction do the ions go?

Trends have helped or hindered the growth of small business : Determine if and how these two trends have helped or hindered the growth of small business in the U.S.

Decreasing the extracellular k+ concentration : Decreasing the extracellular K+ concentration would be expected to have which of the effects on the resting membrane potential and excitability of the cell?

Difference in the standard error for two samples : The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample mean and population mean for a sample of n = 100 is 2 points. Explain the difference in the standard error for the two samp..

User Account

All Pages