Descripción: Art and Science Connected is full of fun hands-on science experiments and art making activities. This is a great packet for elementary teachers. All lesson materials are for educational purposes...
ted talks transcript by sherry turkle
Quantum Mechanics: Collision Between Identical ParticlesDescrição completa
ted talks transcript by sherry turkleDescripción completa
06_RA41336EN50GLA1_LTE Mobility Connected Mode
JLPT N5 ParticlesFull description
Descrição: Japanese grammar study guide.
Descrição: A cheat sheet for the basic Japanese particles ga, wa, no, mo, so, wo, ni, he, de, ka, to, ya, yo, and ne. Originally this was shared on tofugu.com but it's no longer available there.
Descripción: JLPT N5 Particles
Elaborated University of sizing a PV plantFull description
Quantum Kontak 4 Get ConnectedFull description
From the book: "A lot has been written and said about how to communicate with Generation N, Z, The Network Generation, The Millenials, Digital Natives, whatever you want to call them. How to get th...
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union e particuculas entre si
AQA Mechanics 1 Newton’s Laws of motion Section 2: Connected particles Exercise 1. Two particles, mass 3 kg and 9 kg respectively, are connected by a light inextensible string passing over a smooth pulley. Both masses hang vertically. Find the tension in the string and the acceleration when the system is released from rest. 2. An engine of mass 60000 kg pulls a truck of mass 12000 kg along a horizontal track. The engine experiences a resistance to motion of 80 N per kg and the truck a resistance of 50 N per kg. Given that the train is travelling at a constant speed, find the driving force of the engine and the tension in the coupling between engine and truck. 3. A particle of mass 4 kg rests on a smooth horizontal table. It is connected by a light inextensible string which passes over a smooth pulley at the edge of the table to a mass of 1.5 kg that hangs freely. The system is released from rest. Find the acceleration and the tension in the string. 4. An engine of mass 50 tonnes pulls a train of mass 200 tonnes along a horizontal track. The resistance to the motion for the engine is 3000 N and the resistance to motion for the train is 7000 N. The engine is exerting a driving force of 60000 N. Find the acceleration of the system and the tension in the coupling between the engine and the train. 5. A mass of 10 kg lies on a smooth horizontal table. It is connected by a light inextensible string passing over a smooth pulley at one side of the table to a mass of 8 kg that hangs freely. The 10 kg mass is also connected by light inextensible string passing over a smooth pulley at the opposite edge of the table to a mass of 5 kg that hangs freely also. (i) Draw a diagram showing all of the forces acting on the three masses (ii) If the system is released from rest, find the acceleration of the system and the tensions in the strings.
6. A particle of mass m rests on a smooth horizontal table. It is connected by a light inextensible string which passes over a smooth pulley at the edge of the table to a particle of mass m that hangs freely. The system is released from rest. Find the distance travelled and the speed at the end of the first 0.5 seconds of motion.
AQA M1 Newton’s Laws 2 Exercise 7. A box of mass 6 kg rests on a rough horizontal table and the coefficient of friction between the box and the table is 0.4. The box is connected by a light inextensible string passing over a smooth pulley at the edge of the table to a mass of 3 kg which hangs freely. If the system is released from rest find the distance moved by the box in the first three seconds of the motion. You may assume that the box does not reach the pulley. 8. A particle of mass M kg rests on a rough horizontal plane. The coefficient of friction is 13 . The particle is connected by a light inextensible string passing over a smooth pulley at the edge of the plane to a mass of m kg which hangs vertically. (i) Find the condition that the system should remain at rest when released. The plane is now tilted at an angle of 30 to the horizontal such that the pulley is at the upper edge of the plane and the mass m still hangs vertically. (ii) Find the condition that the mass M should not slide down the plane when released. (iii)Find the condition that the mass M should not slide up the plane when released.
