1_Physics_1_ReKaps
... Remember to use vectors with directions Collisions: two objects hitting one another; For all types of collisions, momentum is ALWAYS conserved, so: m1v1i + m2v2i = m1v1f + m2v2f Elastic collision: E is also conserved, so: ½ m1v1i2 + ½ m2v2i2 = ½ m1v1f2 + ½ m2v2f2 Inelastic: E is lost, such as due ...
... Remember to use vectors with directions Collisions: two objects hitting one another; For all types of collisions, momentum is ALWAYS conserved, so: m1v1i + m2v2i = m1v1f + m2v2f Elastic collision: E is also conserved, so: ½ m1v1i2 + ½ m2v2i2 = ½ m1v1f2 + ½ m2v2f2 Inelastic: E is lost, such as due ...
Problem Set 4 – Newton`s Laws and Forces
... road. Dill has to apply a 75 N horizontal force to set it in motion. What is the coefficient of static friction between the bobsleigh and the icy road? 21) A 20.0 kg curling stone given a 100.0 N push by Cam. The coefficient of friction between the stone and the ice it is traveling along is 0.12. Do ...
... road. Dill has to apply a 75 N horizontal force to set it in motion. What is the coefficient of static friction between the bobsleigh and the icy road? 21) A 20.0 kg curling stone given a 100.0 N push by Cam. The coefficient of friction between the stone and the ice it is traveling along is 0.12. Do ...
Phys 141 Test 1 Fall 03
... 38. What is the period of the wave motion for ultrasound with a frequency of 50 kHz a. 50 m b. 50 s c. 2.0 × 10-5 s d. 2.0 × 104 s 39. What is the SI unit for frequency? a. Meter b. Second c. Hertz d. Length 40. Which of the following statement about radio waves is NOT true? a. Radio waves are elect ...
... 38. What is the period of the wave motion for ultrasound with a frequency of 50 kHz a. 50 m b. 50 s c. 2.0 × 10-5 s d. 2.0 × 104 s 39. What is the SI unit for frequency? a. Meter b. Second c. Hertz d. Length 40. Which of the following statement about radio waves is NOT true? a. Radio waves are elect ...
survey of physics - Stevenson High School
... will the child experience. Assuming the child rides 3 m down the slide, what will be his velocity when he comes to the bottom? 13. A 1200-kg car is accelerating eastward at 1.4 m/s2. What is the net force acting upon the car? 14. You and a sled (total mass = 80 kg) are sliding down an icy hill (NO f ...
... will the child experience. Assuming the child rides 3 m down the slide, what will be his velocity when he comes to the bottom? 13. A 1200-kg car is accelerating eastward at 1.4 m/s2. What is the net force acting upon the car? 14. You and a sled (total mass = 80 kg) are sliding down an icy hill (NO f ...
Name - East Physical Science
... 1. How is the scientific definition of work different from the everyday definition? Everyday – something to earn money Scientific – Force applied to moving an object 2. Describe a situation where a force is applied but no work is done. Pushing on a wall that doesn’t move. No motion = no work 3. A fo ...
... 1. How is the scientific definition of work different from the everyday definition? Everyday – something to earn money Scientific – Force applied to moving an object 2. Describe a situation where a force is applied but no work is done. Pushing on a wall that doesn’t move. No motion = no work 3. A fo ...
Section 1
... A useful equation is vf2 = vi2 + 2a(xf – xi). (In these equations, the letter x essentially plays the same role as the letter d used in the discussion above.) Newton's First Law of Motion: Aristotle formulated the concept that the natural state of all bodies was to be at rest--after all, if I start ...
... A useful equation is vf2 = vi2 + 2a(xf – xi). (In these equations, the letter x essentially plays the same role as the letter d used in the discussion above.) Newton's First Law of Motion: Aristotle formulated the concept that the natural state of all bodies was to be at rest--after all, if I start ...
Planning Guide Conceptual Physics Third Edition
... Answer: A heavy load has a lot of mass, that once in motion has a lot of tendency to remain in motion. More force is required to stop more mass so your unfortunate hand is squashed. 4. Does a person diet to lose mass or to lose weight? Answer. A person diets to lose mass. One loses weight whenever g ...
... Answer: A heavy load has a lot of mass, that once in motion has a lot of tendency to remain in motion. More force is required to stop more mass so your unfortunate hand is squashed. 4. Does a person diet to lose mass or to lose weight? Answer. A person diets to lose mass. One loses weight whenever g ...
Newtons Laws
... one of the following statements concerning the net force acting on the rock at the top of its path is true? 1) It is equal to the weight of the rock. 2) It is instantaneously equal to zero newtons. 3) Its direction changes from up to down. 4) It is greater than the weight of the rock. 5) It is less ...
... one of the following statements concerning the net force acting on the rock at the top of its path is true? 1) It is equal to the weight of the rock. 2) It is instantaneously equal to zero newtons. 3) Its direction changes from up to down. 4) It is greater than the weight of the rock. 5) It is less ...
CSUN PHYSICS WORKSHOP SUMMER 2001 July 9
... constant speed along a straight road. You have a pendulum that is hanging freely. If the car now approaches a curve and makes a left turn, which way will the bob move? ____ a) left ____ b) right ____ c) up ____ d) forward ____ e) backward ...
... constant speed along a straight road. You have a pendulum that is hanging freely. If the car now approaches a curve and makes a left turn, which way will the bob move? ____ a) left ____ b) right ____ c) up ____ d) forward ____ e) backward ...
