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A satellite is in a circular orbit around an unknown planet. Thesatellite has a speed of 1.55 x 104 m/s, and the radius of the orbit is5.10 x 106 m. A second satellite also has acircular orbit around this same planet. The orbit of this secondsatellite has a radius of 8.60 x 106 m. What is the orbital speed of thesecond satellite?
A 5.22-kg object is attached to the bottom of a vertical spring and set vibrating. the maximum speed of the object is 15.3cm/s and the period is 645ms. find (a) the forse constant of the spring, (b) the amplitude of the motion, and (c) the frequency ..
a spherical capacitor is formed from two concentric spherical conducting shells separated by vacuum. the inner sphere
Leigh is doing a knee extension exercise using a 100 N weight strapped to her ankle 40 cm from her knee joint. For this position, what torque is created by the dumbbell about her knee joint axis
which of the following are true about vector components for vectors in two dimensions. choose all that apply they are
Throughout liftoff, a hot-air balloon accelerates upward at a rate of 3m/s^2. The balloonist drops an object over the side of the gondola when the speed is 13m/s.
A wrench is used to tighten a nut. A force of 15 N is applied a distance 8.0 cm from the axis of rotation of the nut; the lever arm is 8.0 cm long
A 1.55--tall fisherman stands at the edge of a lake, being watched by a suspicious trout who is 3.50 from the fisherman in the horizontal direction, At what angle from the vertical does the fish see the top of the fisherman's head
Suppose that while moving into an apartment you move a refrigerator into place by sliding it across the floor. What is the least force you could exert on the refrigerator to move it
suppose an electron is accelerated by an electric field between two plates plate a and plate b. assume the electron
A crate is sliding down a ramp that is inclined at an angle of38.0o above the horizontal. Find the acceleration of the moving crate
An 80.0 N box is pulled 19.0 m up a 30° incline by an applied force of 97 N that points upward, parallel to the incline. calculate the change in the kinetic energy of the box
A 1870 kg truck traveling north at 37 km/h turns east and accelerates to 52 km/h. (a) What is the change in the truck's kinetic energy? (b) What is the magnitude of the change in its momentum?
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