On May 20, 1999, Robbie Knieval easily cleared a narrow part of the grand canyon during a world record setting long distance motorcycle jump 69.5m. He left the jump ramp at 10 degrees angle above...

On May 20, 1999, Robbie Knieval easily cleared a narrow part of the grand canyon during a world record setting long distance motorcycle jump 69.5m. He left the jump ramp at 10 degrees angle above...

A 350-N child is in a swing that is attached to a pair of ropes 2 m long. Derive an algebraic expression for the the gravitational potential energy of the child–Earth system as a function of the...

One end of a cord is fixed and a small 0.250-kg object is attached to the other end, where it swings in a section of a vertical circle of radius 1.50 m as shown in the figure below. When θ = 16...

phyisics: you are driving a vehical ( which can deccelarate at a rate of 9.5m/s^2) at a speed of 100 km/hr when you see a parked car 42m ahead. Assuming that you can stop the...

A Coast Guard cutter detects an unidentified ship at a distance of 16.8 km in the direction 14.2° east of north. The ship is traveling at 22.5 km/h on a course at 38.9° east of north. The Coast Guard...

What if the acceleration is not constant? A particle starts from the origin with velocity 2i m/s at t = 0 and moves in the xy plane with a varying acceleration given by vector a = (5√tj) m/s2, where...

A fish swimming in a horizontal plane has velocity vi = (4.00 i + 3.00 j) m/s at a point in the ocean where the position relative to a certain rock is ri = (10.0 i + 4.00 j) m. After the fish...

A train slows down as it rounds a sharp horizontal turn, slowing from 83.2 km/h to 58.9 km/h in the 13.4 s that it takes to round the bend. The radius of the curve is 143 m. Compute the acceleration...

when a 200W, 400W, and 1000W bulbs are connected in series across a main of the three, the bulb which glows brightest is the 200W and not 1000W. What is the reason ?

a train is starting from rest moving with uniform velocity 3ms-1 after the max. velocity with retardation of 2ms-1 it came to rest time of journey 1m. find total distance travel by train ?

too clsver, they stack up 500kg of furniture , tie a rope between the safe and the furniture and place the rope over a pulley. Then they push the safe out the window. What is the safes speed when...

a.) What is the smallest force parallel to the incline needed to keep the sofa from sliding down? b.) What parallel force is required to keep the sofa moving up the incline at a constant...

What is the tension in the rope?

Hi, Im doing this lab soon but I dont get the point of it because cant I just do the calculations without the need of the setup. This is what it is http://i1076.photobucket.com/albums/w457/Hbjoi_Hggo/image...

1) Charges Q1 and Q2 exert repulsive forces of 17 N on each other. What is the repulsive force in Newtons when their separation is decreased so that their final separation is 63 % of their initial...

A satellite makes one full revolution of the earth in 90 mins. Assume that the orbit is circular and that the satellite is situated 280km above the equator. If the radius of the earth is at the equator...

How to answer this question. Pl help 1)How much energy is required to raise the temperature of the water to 100 degrees celsius.

the radius of nearly circular orbit of mercury is 5.8*10^10 and its orbital period of 55 days , what is the radius of its circular orbit?

Hi, I have a homework assignment about Newton's laws and forces. I have to diagram the forces on 2 bodies, showing magnitude of each force, the net force, and acceleration of the system

A) find avg acceleration as it moves from top of the circle to bottom (12 and 6 on a clock) B) the inst acceleration at (9pm) reference

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