Physics question and answers for May 31, 2024
- Q The 2.0 million kW of electricity produced by the power plants accounts for only about 50% of the available energy of the moving water of the Niagara river. What accounts...
- Q At any given time, 181 kg of water is falling at 31.6 m/s over the Canadian Falls.Use the conservation of energy theorem to determine how high the Canadian Falls muwater...
- Q In its current orientation, water falls from 30.5m above the turbine and the spinning turbine produces 1.000 kWhr of powerDetermine the velocity of 3.780 kg of water just before it...
- Q At any given time, 181 kg of water is falling at 31.6 m/s over the Canadian Falls. Use the conservation of energy theorem to determine how high the Canadian Fall...
- Q Determine the velocity of 3.780 kg of water just before it hits the turbine. (Assume the water is in free fall with an initial speed of zero) 147.5 m/s 24.45...
- Q An object with a mass of 200 g rests on a coiled spring with a spring constant of k=500 N/m. The spring is compressed by 5 cm.a. What is the...
- Q A baby carriage is sitting at the top of a hill that is 41 m high. The carriage with the baby weighs 45 kg. The carriage has what type of...
- Q A car is traveling with a velocity of 40 m/s and has a mass of 1120 kg. The car has what type of energy AND which equation will you use...
- Q A rollercoaster of mass 2000 kg starts at rest at the top of an 80 m high hill and begins his journey. Friction is negligible.a. What is the coaster's potential...
- Q In a truck-loading station at a post office a small 0.2 kg package is released from rest at point A on a track that is one quarter of a circle...
- Q How much gravitational potential energy does a 10 kg book have if it is sitting on a shelf 2meters above the floor? (the acceleration of gravity is 9.8 m/s)196 Joules20...
- Q A 0.51-kilogram ball is thrown vertically downward from a height of 36 meters above the ground. The initial velocity of the ball is 14 meters per second. Neglect air resistance....
- Q A 0.75kg trolley is attached to a spring as shown in the picture. The trolley is pulled back to extend the spring by 15pm. The spring has a spring constant...
- Q A bobsled zips down an ice track, starting from rest at the top of a hill with a vertical height of 170 m. Disregarding friction, using the equations below what...
- Q In which case is positive work being done? a) An eastward force is applied to an eastward moving soccer ball that is already moving at a constant velocity to increase...
- Q In which case is positive work being done?a) An apple falls from a tree.b) Friction slows a puck sliding along the ice.c) A book sits on a shelf 2 m...
- Q A 5.00 kg sack of potatoes is raised to a height of 2.00 m and then thrown at a constant velocity of 2.00 m/s onto a truck. What is the...
- Q An air hockey paddle hits a 48 g stationary puck with a force of 12 N. The puck travels 5.0 x 10 cm on the frictionless surface while the force...
- Q A 45-g golf ball leaves the tee with a speed of 43 m/s after a golf club strikes it. (a) Determine the work done by the club on the ball....
- Q 16. A child does 350 J of work while pulling a box from the ground up to his tree house at a steady speed with a light rope. The tree...
- Q 13. A sled is moving along a horizontal surface with a speed of 5.7 m/s. It then slides up a rough hill having a slope of 11 above the horizontal....
- Q A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a constant force of 48 N.How far must the student be pushed, starting from...
- Q A 2.1 kg stone is dropped from a height of 7.6 m and strikes the ground with a speed of 11.5 m/s. What is the magnitude of the average force...
- Q A motor does a total of 480 joules of work in5.0 seconds to lift a 12-kilogram block to thetop of a ramp. The average power developedby the motor is(1) 2400...
- Q Peter saw Lara Jean running on the school's track field. He accelerates from rest to 8.4 m/s within 26.1 s until he catches up with her. If Peter's mass is...
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!