Answered: Problem Compute the kinetic energy of…

Problem Compute the kinetic energy of an 3046 lb. Automobile travelling at 104 mi/hr,) How many times as great is the kinetic energy if the velocity is tripled 3 ). Ans. 9 times

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

The elevator shown in the figure moves downward with a velocity of 610 m/s and acceleration 600 m/s2. Determinea) the velocity and acceleration of the cable Cb) the velocity and acceleration of the counterweight W
A ball is thrown vertically upward from the ground. It reached the ground 10 seconds later. Compute:a) the initial velocityb) the maximum height
While winching a Jeep straight out of the mud, a winch uses 4800Watts of electrical power to pull the 1500-kg Jeep 12meters as it accelerates at 0.15. This takes a the winch 20 seconds to accomplish. Calculate... a.) the force of tension in the cable for the winch to pull the jeep. b.) the work done by the winch to pull the jeep. c.) the power done by the winch to pull the jeep. d.) the efficiency of the winch in this scenario.
a) the time taken to achieve velocity of 70 km/h b) deceleration of the train.
In a skating jump, a skater rotates around their vertical central axis. Duringthe jump, the skater's rotation rate is increased by bringing their arms intotheir side. a) When bringing their arms into their side, do es the rotational kinetic energyof the skater go up, go down or stay the same? If it changes, where do es theenergy for this change come from or go to? b) Show that the change in rotational kinetic energy of the skater ∆KR canb e found by (see image) here KRi is the initial rotational kinetic energy of the skater, ωf is the nalangular sp eed and ωi is the initial angular speed. c) During the jump, when the skater draws their outstretched arms inwards,what total torque is acting on the skater if their final rate of rotation is tworotations p er second? d) After landing again, the skater is able to stop rotating and come to acomplete standstill in 0.7s. What is the average ratio of the torque on theskater to the skater's total moment of inertia during the time they come to…
A) Acceleration of mass M2 B) Speed of M2 after 4 seconds C) when M2 moves 4.6 m how far does M1 move. Thank you
2. A car is traveling on a highway at 28 m/s. a) What is the pressure at the bottom of a car's gas tank. that is a cube with side lengths of 0.5 meters? Assume the tank is full of gasoline with a denisty of 800 kg/m^3. b) How much pressure does a pump need to supply in order to draw gasloine from the bottom of the tank to the top of the tank? The velocity of the gasoline once it is pumped out of the tank should be 1 cm/s; the gas at the bottom of the tank is at rest. c) The gasoline from part b flows through a tube (cylinder) of radius lcm before entering a larger tube of radius 10cm. What will the velocity of the gasoline be in the larger tube? d) The tires on the car have an outer radius of 0.2 meters. How many complete rotations did the tires go through in one hour? Hint: Determine how far the car travels in one hour. e) How many hours can the car travel before running out of gas? f) During your journey. you hit a pothole and have to change your tire. You get your spare…
Q2/ For the system shown below A) Forces components B) Total force resultants and its direetion 100 N 90
A 50cm radius plate rotates at 18.85 rad/s. If the dish mass is 10kg, calculate A) the magnitude of the tangential velocity B) the frequency of motion C) the period D) the centripetal acceleration E) the magnitude of the force Express your response with a single significant number in decimals and with units
In an ore-mixing operation, a bucket full of ore is suspended from a traveling crane which moves along a stationary bridge. The bucket is to swing no more than 5 ft horizontally when the crane is brought to a sudden stop. a) Determine the maximum vertical movement allowed in inch/es. b) Determine the maximum allowable speed v of the crane in ft/s.