What are the resistance forces that attribute to acceleration varying with respect to speed? O grade resistance force O aerodynamic resistance force O rolling resistance force all of the above
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- By what factor do you increase the resistance to bending (about x–x axis) if you were to use W460 × 113 beam over W200 × 46.1 ?12) What pressure is required to reduce the volume of water by 0.6 percent? Bulk modulus of Elasticity of water, EB is 2.2 GPa. 13) A rigid container is partially filled with liquid at 15 atm. The volume of liquid is 1.232 L. At a pressure of 30 atm, the volume of liquid is 1.231 L. Find the bulk modulus of elasticity of the liquid over the given range of pressure if the temperature after compression is allowed to return to its initial value. What is the coefficient of compressibility? Note: 1 atm = 101.325 kPa.HIGHWAY AND RAILROAD ENGINEERING PLease answer in complete solution with the corresponding units
- which one of the following equations is dimensionally homogeneous? show your proof. a. F=ma b. F=m V^2/R c. F(t(2)-t(1)=m(v(2)-V(1)) d. F=mV e. F=m (v2-v1)/(t2-t1) where F= force (N) m=mass (kg) a= acceleration (m/s^2) V=velocity (m/s) R=radius (m) t= time (s)1. Each of the following parts of Problem 1 refers to the same vehicle. Assume aerodynamic drag is zero, friction force on each of the four tires is equal, and the vehicle can be modeled as a particle. Also, assume it has modern traction control so the tires never actually slip and kinetic friction coefficient is irrelevant. a. Determine the distance travelled for the vehicle stopping on dry pavement from 30 mph to zero in 2.0 seconds. Assume acceleration is constant and provide your final answer in feet. b. Determine coefficient of friction for part a. Provide a supporting FBD. c. Determine the distance travelled from 30 mph to zero if the vehicle is on a snow covered road with coefficient of static friction = 0.10. Assume deceleration is constant and provide your final answer in feet. d. Use the coefficient of friction from part b to determine maximum tangential velocity on a 200-foot diameter skid pad. Provide your final answer in mph. e. Determine the minimum radius curve that the…What is the magnitude, direction and position of the resulant of the system of forces shown below?
- The weights of the various components of the truck are shown. Replace this system of forces by an equivalent resultant force and specify its location measured from A.Find the resultant force from adding F1 + F2 + F3 where F1 = 160 lbs at 65 degrees F2 = 90 lbs at 125 degrees F3 = 105 lbs at 285 degrees Your answers should be reported with 3 significant figures for x-component and y-component and magnitude of resultant and angle of resultant.The acceleration due to gravity g is 9.81 m ⁄s2. Express the value g in U.S. Customary and B.G. units. Show all conversion steps.
- ** Please label the question answers so I can understand better! Thanks! Scenario: A chair with a mass of 20.0 kg is attached to one end of a frictionless pulley system via a strong massless rope. The other end of the rope is attached to a steel water tank sitting on a flat horizontal concrete surface (see the image to the right). The coefficient of static friction between steel and concrete is 0.45 and the coefficient of kinetic friction between the surfaces is 0.30. The water tank, which is full of water, has sprung a leak. The combined mass of the water and the tank is 500 kg. This mass slowly decreases as the water leaks from the hole. You (i.e. my mass is 55.7 KG) are sitting at rest in the seat. You and the seat will remain at rest as long as the force of static friction is strong enough to hold you. Task: LET [DOWN] and [RIGHT] be positive. Using your knowledge of physics, determine the following: 1. As soon as the chair begins to move, static friction between the steel…Applications of Newton’s First Law of Motion. Provide explanations for each application. • To dislodge ketchup from the bottom of a ketchup bottle, it is often turned upside down and thrusted downward at high speeds and then abruptly halted.A fuel oil tank, when filled, weighs 1,900 pounds. It stands on 4 legs asshown. What weight must the floor support under each leg; that is, what is theweight each leg supports?