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An 18 kg sled starts up a 31 degree incline with a speed of 3.2 m/s. The coefficient of friction is 0.25. How far up the incline does the sled travel
A billiard ball moving at 5.30 m/s strikes a stationary ball of the same mass. Find the velocity (magnitude and direction) of the second ball after collision
A 10.0 g object moving to the right at 18.0 cm/s makes an elastic head-on collision with a 15.0 g object moving in the opposite direction at 27.0 cm/s
A resistor (R = 900 ?), a capacitor (C = 0.25 µF), and an inductor (L = 2.5 H) are connected in series across a 240 Hz AC source for which ?Vmax = 110 V. calculate the phase angle between the
Three resistors havin resistances of R1= 1.66?, R2= 2.44?, and R3= 4.94? respectively, are connected in parallel to a 28.2V battery that has negligible internal resistance. Find the power dissipated
A series AC circuit contains a resistor, an inductor of 240 mH, a capacitor of 4.80 µF, and a source with ?Vmax = 240 V operating at 50.0 Hz. Calculate the capacitive reactance
Three long wires (wire 1, wire 2, and wire 3) hang vertically. The distance between wire 1 and wire 2 is 20.0 cm.find the magnitude and direction of the current in wire 3
A dad pushes tangentially on a small hand-driven merry-go-round and is able to accelerate it from rest to a frequency of 16rpm in 10.0s. What force is required at the edge
A string is wrapped around a pulley of radius 3.05? , and a weight hangs from the other end. What's the angular acceleration of the pulley
A series RLC circuit has R = 35 ohms, L = 2.7 microhenries, and C = 52 nanofarads. what is the average power dissipated by the circuit
A factory worker pushes a 29.0kg crate a distance of 4.3m along a level floor at constant velocity by pushing downward at an angle of 32? below the horizontal. What is the total work done on the cra
A solid uniform 3.25kg cylinder, 60.0cm in diameter and 12.4cm long, is connected to a 1.50kg weight over two massless frictionless pulleys, How fast is the cylinder turning at this instant
In your computer store you make $1012 per computer sold. Your costs are given by the equation C(x) = 4x^2+4x-80, where x is the number of computers sold. How many computers should you sell to max
1. Let l1 be the line determined by (2,1, 3) and (1, 2 - 1) and let l2 be the line determined by (0, 2, 3) and (-1,1, 2) . Is l1 parallel to l2 ? Explain your answer.
Write an excel document that calculates the medication levels in the bloodstream for the first two weeks of taking this medication
A manufacturer determines that the fixed costs associated with a product are $780 per week. Variable cost per unit is $2.40
What is the Pythagorean theorem What is the Pythagorean theorem
Suppose a fair coin is tossed n times. Each coin toss costs 'd' dollars and the reward in obtaining 'X' heads is aX^2 + bX. Find the expected value of the net reward.
A parachutist leaves a stationary plane and free falls for 50.0 meters (ignore air resistance for the free fall). At what height did she leave the plane
The football started on the ground 63yrds from the base of the goal posts and just barely cleared the 10ft high bar. How long after the ball was struck did it past through the goal posts
A bullet is fired horizontally from a gun while another bullet is dropped vertically from the same height as the gun. Ignoring air resistance
Bob holds a ball at a height of 2.5 m above the ground and tosses it vertically upward with an initial speed of 3.5m/s. How long does it take his ball to reach the ground
A car moving at a constant speed of 7.5 m/s, moves 25 m at a 20 degree angle above horizontal. How much time does it take the car to accomplish this movement
Emily has a field with uniformly cut grass of height 2 cm which grows at a constant rate. How long would it sustain each animal alone
Four objects are situated along the y axis as follows: a 1.94-kg object is at +2.98 m, Where is the center of mass of these objects