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In loading a fish delivery truck, a person pushes a block ofice up a 20 degree incline at a constant speed. The push is150 N in magnitude and parallel to the incline. The block hasa mass of 35.0 kg.
A. Is the incline frictionless?B. If not, what is the force of kinetic friction on the block of ice?
Find out the wavelengths of the light.
Your projectile launching system is partially jammed. It can only launch objects with an initial vertical velocity of 42.0 m/s, What horizontal velocity do you need to program into the system
A helium atom (mass 4.0 u) moving at 600m/s to the right collides with an oxygen molecule (mass 32 u)moving in the same direction at 403 m/s.After the collision, the oxygen molecule moves at 447 m/s to the right. What is the velocity of the helium at..
The power brick for the author's laptop computer has a power rating of 60 W. It uses a step-down transformer to convert the AC voltage from a wall socket (Vrms = 120 V) to a value near 12 V.
you kick a soccer ball 15 meters without hurting your foot much. you then pump the ball up until it is really hard the
Relative to the ground, a car has a velocity of 14.5 m/s, directed due north. Relative to this car, a truck has a velocity of 24.5 m/s, directed 52.0° north of east. What is the magnitude of the truck's velocity relative to the ground?
The length of a simple pendulum is 0.72 m and the mass of the particle (the "bob") at the end of the cable is 0.27 kg. What is the angular frequency of the motion
A 5.9-kg rock and a 6.6 × 10-4-kg pebble are held near the surface of the earth. Determine the magnitude of the gravitational force exerted on each by the earth
two 2.00 cm x 2.00 cm plates that form a parallel-plate capacitor are charged to pm 0.708 nc. part a what is the
A 1.5kg- block of ice is initially at a temperature of -7.0C a)If 2.6×10^5J of heat are added to the ice, Find the amount of ice, if any, that remains
Two metal spheres of different sizes are charged such that the electric potential is the same at the surface of each, What is the ratio QB/QA and EB/EA
The system of masses in Figure 3 are connected by thin, light rods (that do not contribute to the angular momentum or rotational kinetic energy). Find the rotational kinetic energy of the system
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