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1. A 25 kg box is released from rest on a frictionless ramp making an angle of 42o with the horizontal.
a.) Draw the picture.
b.) Make a free body diagram.
c.) determine the acceleration of the box parallel to the surface of the ramp.
d.) Determine the normal force on the box.
How much current is contained within the width of a thin ring concentric with the wire if the ring has the radial width of 12.0 µm and is at a radial distance of 1.2 mm.
What are the two types of errors one encounters in experiments? Give an example of each, What does standard deviation of measured data tell you
Two trains, each having a speed of 27 km/h, are headed at each other on the same straight track, What is the total distance the bird travels before the trains collide
A wooden block of mass 2kg, initially stationary is dragged by a force F with magnitude 20 N along a frictionless incline with an angle 0=30 degrees, What is the wooden block acceleration
A 4.6-{\rm Hz} wave with an amplitude of 20cm and a wavelength of 30cm travels along a stretched horizontal string. How far does a given peak on the wave travel in a time interval of 0.55s ? The answer is dpeak = .76m. How would your answer to par..
The difference in electric potential between a thunder cloud and the ground is 1.58 108 V, Determine the change in electric potential energy of one of the electrons that move to the cloud
If the ball's speed just before impact is 100 m/s, what is the angular speed of the rod immediately after the collision.
Four protons and four electrons are located inside a pyramid and are separate from each other, What is the net value of electric flux through the surface of the pyramid
Questions on blackbody, Infra-Red Detectors & Optic Lens and Digital Image.
A rectangular plate has a length of (20.4 0.2) cm and a width of (8.7 0.1) cm. Calculate the area of the plate
What is an average velocity of the rock
At t=0 a grinding wheel has an angular velocity of 20.0 rad/s. It has the constant angular acceleration of 29.0 rad/s^2 until a circuit breaker trips at time t = 2.20 s. From then on, it turns through an angle 435 rad as it coasts to a stop at cons..
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