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A 3.75-kg box is pulled up a ramp that is inclined at an angle of 33.0° with respect to the horizontal, as shown below. The coefficient of kinetic friction between the box and the ramp is 0.135, and the rope pulling the box is parallel to the ramp. If the box accelerates up the ramp at a rate of 2.09 m/s2, what must the tension FT in the rope be? Use g = 9.81 m/s2 for the acceleration due to gravity
How much electric potential energy has been gained by the charges that passed through the battery?
The x and y components of a vector A are -25.0 m +40.0 m. respective y. What is the angle between the direction of A and positive direction of x?
An advertisement claims that a centrifuge takes up only 0.127m of bench space but can produce a radial acceleration of 3000g at 5000 rev/min. Calculate the required radius of the centrifuge
an athlete who was performing a long jump had a resultant velocity of 8.6 ms and a projection angle of 29deg at
A small object is 10 cm to the left of a converging lens (f = +5 cm), and a second diverging lens (f = -3.3 cm) is 5.8 cm to the right of the first. Find the position and magnification of the final image by calculation
A point is located in a polar coordinate system by the coordinates r=3.5 m and angle = 35 degrees. Find the x and y coordinates of this point
In the early 1900 second, Robert Millikan used small charged droplets of oil, suspended in an electric field, to make the first quantitative measurements of the electron's charge. Find what must the potential difference between the plates be to hol..
A bullet of mass 0.012 kg traveling horizontally at a high speed of 280 m/s embeds itself in a block of mass 3 kg that is sitting at rest on a nearly frictionless surface. Calculate the total translational kinetic energy
A 2.4 kg mass is placed on top of a vertical spring. the spring is compressed 4.2 cm. What is the energy stored in the spring
One point-like charge of +20 nC sits at the center of a thick spherical shell of inner radius 4 cm and the outer radius 6cm. The shell is made of copper and has a net charge of -10 nC.
A 40.0 kg girl and a 8.4 kg sled are on on ice (frection coefficient 0.01) of a frozen lake, draw free body diagrama for the girl and the sled
At time t=0 a grinding wheel has an angular velocity of 22.0 rad/s. It has a constant angular acceleration of 32.0 rad/s^2 until a circuit breaker trips at time t = 2.00 s. At what time does the wheel stop
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