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Q1. An 825-N sled is pulled a distance of 161 m. The task requires 1.50 ^ 10^4 J of work and is done by pulling on a rope with a force of 137 N. At what angle is the rope held?
Q2. The girl's mass was three-fourths that of the boy. The boy has a velocity of v = +0.31 m/s. What would be the girl's velocity in this case?
Q3. A 4.0 N force acts for 6 s on an object. The force suddenly increases to 12 N and acts for one more second. What impulse was impacted by the forces?
On a vacation flight, you look out the window of the jet and wonder about the forces exerted on the window.
I lift a 3 kg rock up and place it on a table 2 meters above the ground. How much gravitational potential energy does the rock have
Translational equilibrium occurs when an object moves with constant velocity or is at rest resulting in an acceleration of magnitude equal to zero. Which law(s) governs this relationship
Explain the characteristics of supersonic motion and the formation of shock waves. Explain the formation of beats by the superposition of sounds of two closely spaced frequencies
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.793 m and 2.97 kg, what is its rotational kinetic energy
What will be the total horizontal distance traveled by the ball? What is the velocity of the ball (magnitude and direction) the instant before it hits the ground? That is what is its i-component? What is its j-component?
A cold room has walls constructed of 0.24 m brick on the outside, 0.15 m foam insulation in the middle and 1.6 cm of wood on the inside. Calculate the outside and inside surface temperature of the composite wall
During 9.93 seconds a motorcyclist changes his velocity from v1,x = -37.3 m/s and v1,y = 14.1 m/s to v2,x =-21.9 m/s and v2,y = 29.3 m/s, Find the components of the motorcycle\'s average acceleration
You have a battery marked 6.00 V.When you draw a current of 0.245 A from it, the potential difference between its terminals is 5.13 V
Given the angular speed omega, find out the radius R(omega) at which the mass rotates without moving toward or away from the origin. Determine the radius in terms of k, L, M, and omega.
You have a ball on a wire that is twirled in a circular orbit with a radius of 3.8 m, and the centripetal force acting on the ball, What is the speed of the ball in orbit
The spin cycles of a washing machine have two angular speeds, 450rev/min and 623rev/min . The internal diameter of the drum is 0.570m, Find the laundry's maximum tangential speed
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