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A small block, mass m = 5.00 kg, travels with speed v = 2.80 m/s along a flat, horizontal surface towards an inclined plane which makes an angle of θ=44.0 degrees with respect to the horizont
A 0.500 kg particle moves in a circle of radius R=0.150 m at constant speed. The time for 20 complete revolutions is 31.7 sec. What is the magnitude of the centripetal acceleration?
A particle of mass 0.350 kg moves in a circle of radius R=1.35 m at a constant speed of v= 6.70 m/s. What is the magnitude and direction of the centripetal force acting on the particle?
If he arches his back even more, reducing the effective distance from his shoulders to his knees to 41.2 cm, what would the wind speed need to be to support him?
What is the electric flux of this electric field through the surface of a square if the normal to the surface is in the +x direction?
What is the shortest time between flashes of light that will make a three-bladed propeller appear stationary when it is rotating with an angular speed of 13.8 rev/s?
The shaft of a pump starts from rest and has an angular acceleration of 5.90 rad/s2 for 12.0 s. (a) At the end of this interval, what is the shaft's angular speed?
A person is riding a bicycle, the wheels of a bicycle have an angular velocity of +25.0 rad/s. Then, the brakes are applied. In coming to rest, each wheel makes an angular displacement of +13.5 rev
Two balls are approaching each other head-on. Their velocities are +9.40 and -11.6 m/s. Determine the velocity of the center of mass of the two balls for the following conditions. (Use the sign of y
Car 1 has a mass of m1 = 65 multiplied by 10^3 kg and moves at a velocity of v01 = +0.82 m/s. Car 2, with a mass of m2 = 92 multiplied by 10^3 kg and a velocity of v02 = +1.1 m/s, overtakes car 1 a
A block is placed on a plane that is inclined at 60 degrees with respect to the horizontal. If the block slides down the plane with an acceleration of g/2, determine the coefficient of kinetic frict
A projectile with mass of 378 kg is launched straight up from the Earth's surface with an initial speed vi. What magnitude of vi enables the projectile to just reach a maximum height of 2.8RE, measu
The actual specific heat capacity of water vapor at low pressure is about 2000 J/kg*K. Compare this with your calculation and comment on the actual role of vibrational motion.
Three charges q = 0.380 C form an equilateral triangle, 1.60 m on a side. Using energy that is supplied at the rate of 0.65 kW, how many days would be required to move one of the charges to the midp
(A) Assuming no heat is released to the surroundings, what is the final temperature of the lemonade? (B) What is the final temperature if you add 6, instead of 2, ice cubes.
The balloon is tethered to prevent it from rising, and the tension in the tether is 10.0 N. Use 0.0290 kg/mol for molar mass of air. (Neglect the gravitational force on the fabric of the balloon.) W
(a) how are the final potentials v1 and v2 of the spheres related? (b) find the final charge q1 and q2 on the spheres in terms of q.
Use graphical analysis to determine the resistivity ρ of the wire (Use a graph of voltage V versus length L). The wire has cylindrical shape and a diameter of 0.9 mm.
Two circular disks spaced 0.50 mm apart form a parallel-plate capacitor. Transferring 1.20 * 10^9 electrons from one disk to the other causes the electric field strength to be 2.90 * 10^5 N/C. What
Find the approximate directions of the diffraction-maximum beams radiated into the space beyond. List your angles from left to right with all angles left of the central maximum being negative.
The cell phone swings back and forth with simple harmonic motion. The mass of the cell phone is 125grams and the period of oscillation is 2.00 seconds. What is the distance from the post to the cent
A cyclist coasts up a 10.9° slope, traveling 25.0 m along the road to the top of the hill. If the cyclist's initial speed is 9.90 m/s, what is the final speed? Ignore friction and air resistance
Find the power lost in heating the wires if the voltage is stepped up from 150 V to 1500 V using an ideal transformer.
The driver of a motorboat that move at 10 m/s wishes to travel directly across a narrow stait in which the current flow at 5 m/s. A. At what angle upstream should the driver head the boat?
A charged capacitor with a 10-volt potential difference between the plates and a resistance of 2000 O are connected in series (i.e. they form an RC circuit). In 2 milliseconds (2 x 10-3 seconds) the