A man pushes on a 75.0 kg box such that his force of 225 N is exerted at an angle of 27.0o to the horizontal as shown. (a) If the floor exerts a frictional force of 44.0 N on the box, what is the net force acting on the box? (b)If the box is initially at rest, how far will it have been pushed in 5.00 s assuming those forces continued?
Part A Constants A man pushes on a piano with mass 170 kg ;it slides at constant velocity down a ramp that is inclined at 12.0° above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes parallel to the incline. Express your answer with the appropriate units. F1083 Submit X Incorrect; Try Again; 4 attempts remaining Part B Calculate the magnitude of the force applied by...
Constants Part A A man pushes on a piano with mass 170 kg ; it slides at constant velocity down a ramp that is inclined at 12.0° above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes parallel to the incline Express your answer with the appropriate units. ValueUnits F-1 Submit Request Answer Part B Calculate the magnitude of the force applied by the man if...
Question 2 Constants Part A A man pushes on a piano with mass 160 kg; it slides at constant velocity down a ramp that is inclined at 16.0° above the horizontal floor. Neglect any friction acting on the piano. Calculate the magnitude of the force applied by the man if he pushes parallel to the incline Express your answer with the appropriate units. F-1 Value Units Submit Request Answer Part Calculate the magnitude of the force applied by the man...
please make sure the answer is clear thats all i need.
025 (part 1 of 4) 10.0 points A Carnot engine works between two heat reservoirs at temperatures 340 K and 190 K. What is its efficiency? 026 (part 2 of 4) 10.0 points If it absorbs 90 J from the hot reservoir during each cycle, how much work does it do? Answer in units of J. 027 (part 3 of 4) 10.0 points How much heat does it give...
before answering. 001 (part 1 of 2) 10.0 points A mechanic pushes a 3780 kg car from rest to a speed of v, doing 4144 J of work in the process. During this time, the car moves 28.2 m. Find the speed v. Neglect friction between car and road. Answer in units of m/s. 002 (part 2 of 2) 10.0 points Find the horizontal force exerted on the car. Answer in units of N. 003 10.0 points 1 1 1
ent 38228286 a e WITHDRAWN 027 (part 1 of 2) 10.0 points A ball thrown vertically upward is caught by the thrower after 1.93 s. Find the initial velocity of the ball. The acceleration of gravity is 9.8 m/s2 Answer in units of m/s. 028 (part 2 of 2) 10.0 points Find the maximum height it reaches. Answer in units of m. 029 10.0 points A car enters the freeway with a speed of 6.9 m/s and accelerates uniformly for...
027 (part I of 3) 10.0 points A block is at rest on the incline shown in the figure. The coefficients of static and ki- netic friction are ?,-0.62 and ?? 0.53, respectively. The acceleration of gravity is 9.8 m/s*. 29° What is the frictional force acting on the 41 kg mass? Answer in units of N 028 (part 2 of 3) 10.0 points What is the largest angle which the incline can have so that the mass does not...
I need help with 25, 26, 28, and 29 please
025 (part 1 u.0 points A long non-conducting cylinder density ρ = α τ, where α 5.8 C/m4 al.' is in meters. Concentric around it is a hollow VAuarge 11.02 cm 21 cm 32.4 cm What is the electric field at 3.54183 cnm from the central axis? Assume the length L is very long compared to the diameter of the shell, and neglect edge effects. The Coulomb constant is 8.8542...
A storeho use worker pushes a box with a refrigerator (mass:96.0-kg) at constant velocity for a distance of 11.0 m. He pushes in the direction parallel to the horizontal floor. A 250.0-N frictional force opposes the motion of the box. Use Newtons second law and definition of work to answer the questions below. (a) (1 point) What is the acceleration of the box? as (b) (2 points) What is the net force, acting on the box? Write down Newtons second...