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A block with a coefficient of kinetic friction μk =0.4 slides down a 30 degree inclined plane. Estimate what acceleration does it experience?
There is a clever kitchen gadget for drying lettuce leaves after you wash them. Obtain the magnitude of centripetal acceleration at the outer wall
A block is hung by a string from the inside roof of a car. Then the string makes an angle with the vertical. Find what the angle
Two telephone poles are separated by 40 m and connected by a wire. A bird of mass 0.50 kg lands on the wire midway among the poles, causing the wire to sag 2.0 m below horizontal. Assuming the wire has negligible mass, what is the tension in the wire..
A car starts from rest and then accelerates uniformly to a linear speed of 14 m/s in 37 second. If the tires have a radius of 23 centimeter, Determine the average linear acceleration of a tire
Starting from rest, you move with a constant acceleration of 2.2 m/s2 for 15.0 s and then move with an acceleration of -2.2 m/s 2 for another 15.0s. What is your maximum speed attained? How far do you go through the whole trip?
The working load to be supported by the foundation is 2600 kN, use the Sctunertmann's method to estimate the settlement of the foundation for the conditions - Determine the maximum consolidation settlement of the raft foundation.
A 286 kilogram log is pulled up a ramp by means of a rope that is parallel to the surface of the ramp. Estimate what the tension in the rope
Compute the edge length of a cube that has the same volume as a sphere of radius 5.0 cm. How much greater is the surface area of the cube than that of the sphere (in cm2)
Evaluate what is the magnitude of the applied force T that is needed to start the suitcase moving? And once the suitcase is moving
A 25.0 kilogram block is initially at rest on a horizontal surface. Evaluate the coefficients of kinetic and static friction from this information
Two moles of an ideal gas at 200 K occupies a 40 m3 container. What is the pressure of the gas
A helicopter is ascending vertically with the speed of 5.79. At a height of 127 above the Earth, a package is dropped from a window. How long take the package to hit the ground.
An asteroid in an elliptical orbit about the sun travels at 1.0*106 m/s at perihelion(the point of closest approach) at a distance of 3.9*108 km from the sun. Howfast is it traveling at aphelion (the most distant point), whichis 8.8*108 km from the s..
q1. a weather vane at first at rest has a moment of inertia of 0.111 kg bull m2 about its axis of rotation. a 53.0 g
A person’s face is 30.0 cm in front of a concave makeup mirror, producing an upright image that is 1.35 times as large as the object. What is the mirror’s focal length f?
A spring with spring constant k is attached to mass M. The spring is horizontal and mass M sits on a horizontal frictionless table. Find the equilibrium position of the masses
A motorist travels for 3.0h at 80.0 km/h and 4.0 h at 60.0km/h. What is her average speed for the trip
a 5.80kg piece of solid copper metal at an initial temperature t is placed with 2.00 kg of ice that is initially at
A capacitor with air between its plates is charged to 140 V and then disconnected from the battery. Whena piece of glass is placed between the plates, the voltage acrossthe capacitor drops to 30 V. What is the dielectric constant of the glass?
a rocket initially at rest on the ground accelerates straight upward from rest with constant acceleration 44.1ms2 . the
A skater stands at rest in a skating rink, and throws a baseball (m=.15 kg) at a speed of 35 meters per second. If the mass is 50 kg, and if you neglect friction, what recoil velocity will the skater have
A peak intensity of an EM wave is 3.40x10^7W/m^2. If the peak magnetic field is 2.87x10^-6, determine what is the peak electric field
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