(I) A laser beam is directed at the Moon, 380,000 km from Earth. The beam diverges at an angle 0 (Fig. 8–40) of 1.4 x 10-5 rad. What diameter spot will it make on the Moon? Moon Earth Laser beam FIĞURE 8–40 Problem 3.

Q: What about angular velocity?

A: we have  VAB=403 m/s rAB=30 cm = Required Angular velocity ωAB=?

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A: Motion of projectile can be divided into x component and y component.

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A: mass, m = 5 kg  diameter, d = 22 cm  radius, r = 11 cm =0.11 m  Angular momentum, L = 0.23 kg m2/s

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A:

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Q: 3/220 The small spheres, which have the masses and ini- tial velocities shown in the figure, strike…

A: Given,

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A: Given:Radius of tub (r) = 0.33 mClothes lose the contact with tub at an angle (θ) = 68ᵒ

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Q: Calculate the speed at the edge of a disc of radius 7 cm that rotates at the rate of 5 rev/s. Answer…

A: radius of disc (r) = 7 cm= 0.07 m angular speed (ω) = 5 rev/s=5×2π rad/s= 31.4 rad/s

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A:

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A: Given data The weight of the cylindrical metal is W = 500 N The desired kinetic energy is KE =…

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A:

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Q: A 40 kg flywheel in the form of a uniform rpm. Determine circular disc of 1m radius is making 120…

A: Here, we calculate the given as follow;

Q: Consider an asteroid with a radius of 17 km and a mass of 3.8×1015 kg. Assume the asteroid is…

A: Consider an asteroid with a radius of 17 km and a mass of 3.8×1015 kg. Assume the asteroid is…

Q: A hamster is sprinting around a circular track.  It is sprinting at a speed of 4 meters per second.…

A: Write the given values with the suitable variables. v=4 m/sm=1.2 kgr=234 m Here, v is the speed, m…

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A: To determine  Trajectory  of center of mass after explosion

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A: Mass of each particle (m)=0.5 kg Angular velocity of the body (ω)=2 rad/s Distance of the circled…

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A:

Q: 8-17. A particle moves in an elliptical orbit in an inverse-square-law central-force field. If the…

A: The equation of the orbit is αr=1+ε cosθr=α1+ε cosθ   When α=l2μk and ε=1+2El2mk2. So the radial…

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A: The radius of the spacecraft is, r=d2=240 cm2=120 cm0.01 m1 cm=1.2 m The velocity of the Yo Yo…

Q: A 1.0- kg mass is attached to a string wrapped around a shaft of negligible mass and having a 8.0-…

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A:

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Q: A 4m board weighing 60 N extends out over the edge of the table with 40% of the board's length off…

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A:

Q: The mass of a flywheel is 20 Kg. The radius of gyration of the flywheel is 40 cm. A torque of 10 Nm…

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Q: What is the angle between the vectors a = (10, -10, 0) and b = (-5, 5, 2), in radians?

A: Given data: Vector a = (10, - 10, 0) Vector B = (-5, 5, 2) Required: Angle between the vectors

Q: A fan starts from rest and speeds up to 5.00rey/s ro tates constantly for 9.00s. It then slows to a…

A: We have to use kinematic relation for angular motion