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Doug pushes a 4.60 kg crate up a 1.70-m-high 20 ^\circ frictionless slope by pushing it with a constant horizontal force of 28.0 N.What is the speed of the crate as it reaches the top of the slope? Solve this problem using work and energy. Solve the problem using Newton's laws.
The overall magnification of an astronomical telescope is desired to be 26 Ã?. What is the overall length of the telescope when adjusted for use by the relaxed eye
A certain particle has a weight of 34 N at a point where the acceleration due to gravity is 9.80 m/s2. What are the weight and mass of the particle at a point where the acceleration due to gravity is 4.90 m/s2
A parallel plate capacitor has a capacitance of 8.5 µF when filled with a dielectric. What is the dielectric constant of the dielectric
A tennis ball with a speed of 13.20 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 10.36m/s.
A 230 gmeteoroid (a space rock) is at rest at the origin when internal pressure causes it to burst in two, Find the velocity of the other piece
The left ventricle of the heart accelerates blood from rest to a velocity of +24 cm/s^2. How much time does it take for the blood to reach its final velocity
observations of a certain galaxy show that stars at a distance of 16 pc from the center of the galaxy orbit a central
A battery has an emf and an internal resistance . When the battery is connected to a 25 ohm resistor, the current through the battery is 0.65 A. Find the battery's internal resistance
A camera has a lens w/ a 52 mm focal length and a sensor array that measures 4.82mm x 3.64 mm, If you want the giraffe to fit the longer dimension of sensory array how far away from the animal will you have to stand
Imagine that hard determinism is true. Would there be any justification for punishment? Why or why not?
An experiment determines that there are 49 allowed rotational energies for a diatomic molecule whose moment of inertia is 2 x 10^-46 kg*m^2. What is the maximum rotational kinetic energy in eV of the molecule?
A solid steel cylinder is standing (on one of its ends) vertically on the floor. The length of the cylinder is 3.5 m and its radius is 64 cm. What is the weight of the object
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