
answers only please! thank you! A potential energy is given by Uly) - Ay. What is...
4.
Please answer parts c-g. Thank you
A horizontal block-spring system with the block on a frictionless surface has total mechanical energy E40.2J and a maximum displacement from equilibrium of 0.266 m. a) What is the spring constant? 1136.29 N/m b) What is the kinetic energy of the system at the equilibrium point c) If the maximum speed of the block is 3.45 m/s, what is its mass? kg d) What is the speed of the block when its displacement...
Physics I. Unit : potential energy and conservation of energy.
A,B,C, please
In the figure, a 3.9 kg block is accelerated from rest by a compressed spring of spring constant 630 N/m. The block leaves the spring at the spring's relaxed length and travels over a horizontal floor with a coefficient of kinetic friction mu_k = 0.215. The frictional force stops the block in distance D = 7.7 m. What are (a) the increase in the thermal energy of the...
1a.
1b. 1c.
A single conservative force = (AX - B) N, where x is in meters, and A and B are positive constants, acts on a particle moving along an x axis. The potential energy U associated with this force is assigned a value of 0 at x = 0. (a) Write an expression for the potential energy associated with this force. (b) What is the maximum positive value of the potential energy? In the figure, a block of...
A block of mass 3.40 kg is placed against a horizontal spring of constant k = 865 N/m and pushed so the spring compresses by 0.0600 m. (a) What is the elastic potential energy of the block-spring system (in J)? (b) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring.
Please type or neat handwriting
Thank you
4. Two blocks of mass 3.00 kg and 5.00 kg are connected as shown to a spring k 25.0 N/m) that has one end fixed to a wall. The horizontal surface has a ukinetic) 0.35 and the pulley is frictionless. The 3.0 kg block will not leave the platform. The pulley is mass less. The system is released from rest with the spring unstretched A. What is the combined kinetic energy of the...
1.3 The equation mv gl sin 0 +kl2 describes the energy of an object with mass m amd initial speed vo sliding a distance l up a frictionless ramp at inclination angle θ, all the while compressing a spring with stiffness k as it comes to rest. Solve the equation for I, the distance the object moves up the incline and compresses the spring.
A block of mass 3.80 kg is placed against a horizontal spring of constant k = 865 N/m and pushed so the spring compresses by 0.0800 m. (a) What is the elastic potential energy of the block-spring system (in J)? J (b) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring. m/s
A block of mass 3.20 kg is placed against a horizontal spring of constant k = 845 N/m and pushed so the spring compresses by 0.0450 m. HINT (a) What is the elastic potential energy of the block-spring system (in J)? J (b) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring. m/s
A block of mass 2.40 kg is placed against a horizontal spring of constant k = 835 N/m and pushed so the spring compresses by 0.0750 m. HINT (a) What is the elastic potential energy of the block-spring system (in J)? J (b) If the block is now released and the surface is frictionless, calculate the block's speed (in m/s) after leaving the spring. m/s
conservasion of energy
I have the answers but please show ALL work neatly. b) 45J
c)10.95 m/s d)8.21 kg m/s e)17.9
3. Toy Car Launcher A toy car has a mass of 0.75 kg. It is launched on a horizontal surface by using an elastic cord which is stretched 30 cm from its rest position. The spring constant of the cord is 1000 N/m. The car encounters a ramp and rolls up the ramp a distance x. The ramp angle...