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A 4.0 kilogram mass has a velocity of 4 m/s , east when it explodes into two 2 kilogram masses. After the explosion one of the masses has a velocity of 3m/s at an angle of 60o north of east. Find the magnitude of the velocity of the other mass after the explosion?
An object is placed to the left of a lens, and a real image is formed to the right of the lens. How far from the lens is the object
Assume that the earth has an average surface temperature of29°C and is a perfect emitter of radiation (e = 1). Find the energy per second per square meter
You have been given a long lenght of wire. You measure the resistance of the wire, What is the resistance of one of those sections
A slide projector has a converging lens whose focal length is117.00 mm. (a) How far (in meters) fromthe lens must the screen be located if a slide is placed 120.01 mmfrom the lens? If the slide measures 24.0 mm (height) x 36.0 mm(width), what are the..
A solid sphere of radius = 10 cm and mass = 2 kg is going down an inclined plane of height = 5 m. The angle of the inclined plane = 35 degrees. What is the final Total kinetic energy of the sphere
A friend tells you that when she takes off her eyeglasses, What is the focal length of your friend's glasses
The car collides and becomes stuck to a 5000kg truck travelling west at along South Street at the intersection of South Street and Murdoch Drive. Illustrate what is the final velocity of the vehicles after the collision if the truck was travelling..
a 2.0kg projectile if fired with initial velocity components Vox= 30 m/s and Voy= 40 m/s from a point on the earth's surface. What is the kinetic energy of the projectile
To focus a camera on objects at different distances, the converging lens is moved toward or away from the film, Over what distance must the lens be movable
A box is pushed across the floor, slide with a constant velocity, and is opposed by a friction force of 25N. What is the magnitude of the force? Choose the correct answer. A.Less than 25N B.Zero C.Greater than 25N D.25n
A kite is hovering over the ground at the end of a straight 44-m line. The tension in the line has a magnitude of 15 N. Find the height of the kite
A grating is made of five similar, uniformly spaced, narrow slits. For light of wavelength ? = 675 nm perpendicularly incident on the slits, What is the angular position of the first principal order when the first and fifth slits are covered
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