Compute velocity and speed and acceleration of vehicle
A ship tracks an unmanned vehicle P in the water. Relative a reference frame the recorded motion of P for the first t seconds is: r(t)=[(2.25+2.13t^3)i+(225+0.993t^2)j]m. Determine the velocity and speed of P and what is the acceleration of P.
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You produce an image of the Sun on a screen, using a thin lens whose focal length is 21.6 cm. What is the diameter of the image? (The mean radius of the Sun is 6.96 x 108 m and its mean distance from Earth is 1.50 x 1011 m.)
A random sample of 75 students at a private elementary school is tested and has a mean intelligence test score of 103.5. The average for the general population of elementary school children is 100 (? = 15).
A high-speed jet of water at an absolute velocity of Vjet = 15 km/h to the right strikes the back of the car. The relative velocity of the water is?
Connectign the outer surface to ground will result in a change in the surface charge density for the outer surface. What is the value of sigma b after grounding? Use Gauss' Law to find E inside the grounded metal sphere, a<r<b.
Relative a reference frame the recorded motion of P for the first t seconds is: r(t)=[(2.25+2.13t^3)i+(225+0.993t^2)j]m. Determine the velocity and speed of P and what is the acceleration of P.
Ball A glances of B at an angle of 30 degree north at its original path. Ball B is pushed along a path perpendicular to the final path of ball A. a. what is the momentum of ball A after the collision?
Determine the composition of the gas on a mass basis. If the moisture were to be condensed before the gas is let out, what would be the composition of the outgoing gas?
A lens is made of a transparent material having an index of refraction of 1.5. One side of the lens is flat, and the other convex with a radius of curvature of 28 cm. (a) Find the focal length of the lens. (b) If an object is placed 120 cm in fron
If the force exerted on cable AB by the motor is F =100t^(3/2) N, where t is in seconds, determine the 50-kg crates velocity when t = 5s.
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