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Q1. On a spacecraft two engines fire for a time of 600s. One gives the craft an acceleration in the x direction of ax = 5.10m/s2, while the other produces an acceleration in y direction of ay = 7.3m/s2. At the end of the firing period, the craft has velocity components of vx = 3565 m/s and vy = 4556 m/s. Find the magnitude and direction of the initial velocity. State the direction as an angle with respect to the +x axis.
Q2. A marble is thrown horizontally with a speed of 19.0 m/s from the top of building. When it strikes the ground, marble has a velocity that makes an angle 75° with the horizontal. From what height above the ground was the marble thrown?
Find out the magnitude of the charge on the moving particle. The baby soon learns to bounce with utmost amplitude and minimum effort by bending her knees at what frequency.
A 0.12-kg ball is placed in a shallow wedge with an opening angle of 120°, as shown in the figure. For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless. Find contact force o..
A worker drops a wrench from the top of a tower 88.00 m tall. With what velocity does the wrench strike the ground? (Suppose the positive direction is upward.)
What is rms speed of the atoms at temperature
A highway curve with a radius of 555 m is banked properly for the car travelling 150 km/h. If a 1650 kg Porshe 928 S rounds the curve at 220 km/h, how much sideways force must the tires exert against the road if the car does not skid.
A 1500 car travelling at 26 suddenly runs out of gas while approaching the valley that looks like an inverted hump. 12m at the left where the care runs out of gas and 19 m at the right were it is headed. What will be the car's speed as it coasts into..
Two pellets, each with charge 5 microcoulomb (1 microcoulomb = 0.000001 coulombs), are located 0.5 m apart. What is electrical force between the charges.
A very large number (N+1) polaroids are arranged in a sandwich.
Change values of the initial position, initial velocity, and the acceleration of the car so that its center follows the same path as the dot. What is the equation that describes motion of the dot.
A spring of force constant k=2.5*10^2 N/m is suspended form a rigid support. An object o mass 1.00 kg is attached to the uns How far below the starting point is equilibrium position for the object.
What are the original charges on each sphere
What tension is necessary to tune string properly
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