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A 150-N sled is pulled up a 28 degree slope at a constant speed by a force of 100N. What is the coefficient of kinetic friction between sled and slope?
A motorcycle has a constant speed of 30.0 m/s as it passes over the top of a hill whoseradius of curvature is 118 m. Find the magnitude of the normal force that acts on the cycle
A dipole is located at the origin, and is composed of charged particles with charge +e and -e, separated by a distance 3 10-10 m along the y axis. The +e charge is on the -y axis.
Each surface exerts a force on the bottle that is perpendicular to the surface. What is the magnitude of each of these forces.
The spring constant of a toy dart gun is 5000 N/ M. To cock the gun the spring is compressed 3 cm. Estimate the speed of the projectile when it returns to its starting point
The howler monkey is the loudest land animal and can be heard upto a distance of 2.5 km. The acoustic power emitted by the howler, in mW is
A girl of mass 50.0 kg jumps off the bow of a 84.0-kg canoe that is initially at rest. If her velocity is 2.90 m/s to the right, what is the speed of the canoe after she jumps
A 9 kg hammer strikes a nail at avelocity of 8.9 m/s and comes to restin a time interval of 8.0 ms. What is the impulse given to the nail
An airplane propeller is 2.08 m in length (from tip to tip) and hasa mass of 117kg. What is its rotational kinetic energy
the sketch shows a conical pendulum. the ball swings in a circular path because of the string attached at the top. the
A 600nm laser hits glass with an incident angle of 30°. If the glass has and index of refraction of 1.7, determine The velocity of light inside the glass
The coils used to measure the movements of a blowfly have a diameter of 2.0 {\rm mm}. Find the maximum magnetic flux experienced by one of these coils
A string vibrates in five segments to a frequency of 460Hz. (a) what is its fundamental frequency? (b) What frequency will cause it to vibrate in three segments.
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