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A mass of 40 kg is attached to the end of a cord that passes over a frictionless pulley and then has a mass of 35 kg attached to the other end. If the masses start from rest from the same height, what is the acceleration magnitude and direction for the 40 kg block?
A hot air balloon has just lifted off and is rising at the constant rate of 1.30 m/s. Suddenly, one of the passengers realizes she has left her camera on the ground. how much time does it take for the camera to reach her
A hydrogen atom is in the 5d state. What is the magnitude of its orbital angular momentum
what is the available energy content, in joules, of a battery that opperates a 2.00 w electric clock for 18 months
If light from a 560-nm monochromatic source in air is incident upon the surface of fused quartz (n = 1.56) at an angle of 60°, what is the wavelength of the ray refracted within the quartz
At what height above the earth is the acceleration due to gravity 45% of its value at the surface, What is the speed of a satellite orbiting at that height
A real image 1.5 cm high is 18.0 cm from a thin lens. The image is on the opposite side of the lens, 32.2 cm from the object. How big is the image
A photon has the same momentum as an electron moving with a speed of 1.83×105 m/s. What is the wavelength of the photon
A hiker determines the length of a lake by listening for the echo of her shout reflected by a cliff at the far end of the lake. Determine the length of the lake
FInd the quantities and volume of liquid in each tank and predicting the damage or danger caused in the process.
Shown on the right is large block 17.0 cm wide, 16.0 cm long, and 27.00 cm high of mass 2.55 kg. This block is passing through air (density ?air = 1.43 kg/m3). Calculate the terminal velocity of the block if it is traveling downward with a drag coeff..
One yoga exercise, known as the "Downward-Facing Dog," requires stretching your hands straight out above your head and bending down to lean against the floor. Find the normal force that the floor exerts on each foot
A 140 g ball moving at 0.35 m/s in the + x-direction is subject to a 0.20 N force in the - y-direction for 2.0 s, Find the magnitude of the ball's momentum change
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