Physics question and answers for June 03, 2024
- Q 22 If two persons A and B take 2 seconds and 4 seconds respectively to lift an object to the same height h then the ratio of their potential energies...
- Q 15 A stone can slide down one of four different frictionless ramps as shown in the figure For which ramp w the speed of the ball be the greatest at...
- Q A trolley of mass 18 kg is pulled with a velocity which depends on time and given as v 3t Sand is falling vertically on the trolley at a rate...
- Q A tank is full of water Find the work required to pump the water out of the spout Use the fact that water weighs 62 5 lb ft Assume a...
- Q Turbine Moved by Cyclist Pedaling at Medium Speed With A Fluorescent Light Bulb System Intro Energy Systems In this system converted to a lot of bit of UUS energy Energy...
- Q A hoop of radius 0 50 m and a mass of 0 20 kg is released from rest and allowed to roll down an inclined plane How fast is it...
- Q A 1 60 kg disk starts at rest at the top of a 6 40 m high track A Its height at B is 4 00 m and its height...
- Q Using the Concept Builder The Stepping Up to PE and KE Concept Builder is shown in the iFrame below There is a hot spot in the lower right corner of...
- Q Paul and Ivan are riding a tandem bike together They re moving at a speed of 5 meters second Paul and Ivan each have a mass of 50 kilograms What...
- Q Establish the equations Solve for the necessary variable Plug N Chug Express answers to 3 SF 1 2 3 4 5 6 7 8 9 10 The roller coaster s...
- Q 33 m 18m The Oinga Boinga Cowabunga 11 m 11 5m Car Mass 600 kg Spring Const 12000 N m Max Spring Compression 10 m The roller coaster s car...
- Q 4 Points A cylindrical tank with a length of 10 meters and a radius of 5 meters is on its side and half full of gasoline Set up the integral...
- Q How much power is used by a contact lens heating unit that draws 0 051 A of current from a 120 V line
- Q 5 A 120 V household circuit that contains a 320 W television a 1 0 x102 W lamp and a 1350 W heater is connected to a 20 0 A...
- Q Energy What is it Units Kinetic Energy What is it Equation Energy Review Units of each variable in the equation
- Q For the following scenario draw both system diagrams and energy pie charts A moving cart m 10 0 kg hits a spring traveling at 15 0 m s at the...
- Q Conservation of Energy What does this law state If I start with 1000 J of energy how much should I with What about in the presence of friction how m...
- Q If a spring has 250 000 J of energy and a spring constant of 200 N m by how much is it stretched or compressed
- Q What is the potential energy of a barbell that has a mass of 182 5 kg if the barbell is lifted 1 7 m above the ground
- Q Usain Bolt set a world record in 2009 by running the 100m in 9 58 seconds Calculate his kinetic energy if his mass was 94 0 kg Assume he ran...
- Q 5 A 60 Watt light bulb uses up J of energy when left on for 1 hour 3600 s
- Q Calculate the work done from the following F d graph over the first 6 0 m 1 Point 60 50 40 30 20 10 O 120 J O 60 J...
- Q How much work is done by a student carrying a 12 kg backpack while accelerating at a rate of 0 51 m s over a distance of 5 0 m...
- Q A 0 20 kg ball is thrown straight up from the edge of a 30 0 m tall building at a velocity of 22 0 m s The ball moves...
- Q 14 A wire has 4x10 C of charge flow through it in 1 minute when it is plugged into a 24 V battery a What is the current b What...
- Q Problem 1 The rollercoaster with a mass of 12 kg was given no initial push when it entered the frictionless track below Based on the following information determine a The...
- Q 7 About how much power does a sprinter produce if he transforms 2 70 kJ of chemical energy from food into kinetic energy and thermal energy in 14 0 s...
- Q 16 What is the potential energy of a 69 kg person sitting at the top of a 28 m Ferris wheel 1 Point O 20 KJ 18 kJ 21 kJ...
- Q 2 How much mechanical work does a woman do on a wheel barrow if she applies a force with a magnitude of 35 N in the forward direction and displaces...
- Q 13 A 1100 kg gas powered car is only 15 efficient How much input energy is needed for the car to reach a velocity of 11 m s from rest...
- Q 6 How much mechanical work is done on a brick wall if a man pushing with a 250 N force fails to move the wall 1 Point O OJ O...
- Q 3 If a descending parachutist has 8 00 kJ of kinetic energy and 225 00 kJ of mechanical energy how many kJ of gravitational potential energy does the parachutist have...
- Q 49 1 An automobile engine develops a torque of 265 m N at 3350 rpm What is the horsepower of the engine
- Q 53 II Estimate the kinetic energy of the Earth with respect to the Sun as the sum of two terms a that due to its daily rotation about its axis...
- Q Converting Between Grams Moles and Molecules A sample of ammonia NH 17 03 g mol has a mass of 56 6 g How many molecules are in this sample 1...
- Q 7 II A 980 kg sports car collides into the rear end of a 2300 kg SUV stopped at a red light The bumpers lock the brakes are locked and...
- Q 2 A 56 0 N crate starting at rest slides down a rough 8 3 m long ramp inclined at 30 with the horizontal The force of friction between the...
- Q kg cart is moving to the right at 3 m s and a 1 2 kg cart is moving to the left at 5 m s The two carts collide...
- Q Dizzy is speeding along at 24 8 m s as she approaches the level section of track near the loading dock of the Whizzer roller coaster ride A braking system...
- Q all final answers should be to 1 decimal place 9 A 40 000 kg roller coaster starts from rest at point A Assume there is no friction Mo B 54...
- Q 4 A child swings on a swing so that her center of mass is located 2 4 m from the point where the rope is attached to the tree If...
- Q 1 A total of 490 J of work is done on a pin when a 5 0 kg sledgehammer strikes it bringing the sledgehammer to rest Calculate the initial speed...
- Q Trigonometry An individual lifts an 882 9N barbell overhead t a height of 2m When the barbell is held overhead what are the potential and kinetic energies
- Q Two cars have a rear end collision A 120 kg Honda moving at 20 m s strikes a 100 kg Ford moving at 15 m s Their bumpers become locked...
- Q Determine whether or not the path travelled has an effect on the work being performed if the startira point and ending point remain the same Consider cases when there is...
- Q Spring 2 initial length m Length of spring m 12cm 14cm 16cm 19cm 22cm 30cm Change in length Ax m 6 5cm 6 5cm 6 5cm 6 5cm 6 5cm...
- Q 3 A truck of mass 1 3 X 104 kg travelling at 9 0 X 10 km h N collides with a car of mass 1 1 10 kg travelling...
- Q Our central air conditioner uses 10 000 watts on 240 volts If we leave the thermostat at 76 degrees it runs an average of 8 hours per day If we...
- Q A 2 5 hp 1 hp 744 W motor is used to power a hoist to lift a 1700 kg car 1 86 m above the garage floor How much...
- Q A 2 0 kg trolley moving east at 3 0 m s collides head on with a 1 0 kg trolley west at 2 0 m s After the collision...
- Q 4 A washing machine has a power rating of 550 Watts It is used for 3 hours every week a How much energy in kWh does it use in 4...
- Q 2 An electric motor used 7 50 103 kJ of electrical energy to do 6 40 103 kJ of work What is the percent efficiency of the motor 85 3
- Q Tries remaining 3 Points out of 1 00 Flag questi n You perform the Hooke s Law experiment and create a plot of Displacement vs Force You add a linear...
- Q Questions 9 15 A 50 kg sledder starts from rest atop a 5 0 m high hill A She sleds to the bottom and up to the top of the...
- Q d b C 60 Cord m String 1975B7 A pendulum consists of a small object of mass m fastened to the end of an inextensible cord of length L Initially...
- Q 2 Calculate the potential energy kinetic energy mechanical energy velocity and height of the ball at the various locations 3 50 kg 3 mm PE KE ME S V PE...
- Q D X M 1986B2 One end of a spring is attached to a solid wall while the other end just reaches to the edge of a horizontal frictionless tabletop which...
- Q 1974B7 A ski lift carries skiers along a 600 meter slope inclined at 30 To lift a single rider it is necessary to move 70 kg of mass to the...
- Q 1 kg 16 m s All M Before Collision 4 kg Before Collision After Collision M Px v 0 kg m S View From Above 4 1984B2 Two objects of...
- Q 10 m 30 60 10 m sin 30 0 50 cos 30 0 87 tan 30 0 58 sin 60 a 0 87 cos 600 50 tan 60 1 73...
- Q a b m C1991MI A small block of mass 2m initially rests on a track at the bottom of the circular vertical loop the loop shown above which has a...
- Q R 1982B3 A child of mass M holds onto a rope and steps off a platform Assume that the initial speed of the child is zero The rope has length...
- Q When you drop a pebble from height H it reaches the ground with kinetic energy K if there is no air resistance From what height should you drop it so...
- Q Four weightlifters A through D enter a competition The mass and distance that each lifts are shown in the table Which weightlifter does 2 94 x 10 J of work...
- Q 7 You slide a 0 12 kg coffee mug 0 15 m across a table The force you exert is horizontal and of magnitude 0 10 N The coefficient of...
- Q 80 m 1979B1 From the top of a cliff 80 meters high a ball of mass 0 4 kilogram is launched horizontally with a fekty of 30 meters per second...
- Q 2 M Before Collision a v the speed of the blocks immediately after impact b x the maximum distance the spring is compressed MA xo I 1 2M Xo wwww...
- Q 45 Figure I Figure li C1981M2 A swing seat of mass M is connected to a fixed point P by a massless cord of length L A child also of...
- Q 1kWw 3 kg J 77777 1981B2 A massless spring is between a 1 kilogram mass and a 3 kilogram mass as shown above but is not attached to either mass...
- Q 100m 1990B1 A bullet of mass m is moving horizontally with speed v when it hits a block of mass 100m that is at rest on a horizontal frictionless table...
- Q 1984M1 modified An amusement park ride consists of a rotating vertical cylinder with rough canvas walls The floor is initially about halfway up the cylinder wall as shown above After...
- Q O R 8m 1975B1 A 2 kilogram block is released from rest at the top of a curved incline in the shape of a quarter of a cir of radius...
- Q Z a R e Side View 2001B1 A ball of mass M is attached to a string of length R and negligible mass The ball moves clockwise in a vertical...
- Q Ground 1984B1 A ball of mass M attached to a string of length L moves in a circle in a vertical plane as shown above At the top of the...
- Q Which one has larger kinetic energy a 20 kg object moving at 40 m s or a 40 kg object moving at 20 m s The 40 kg object The...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!