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An 86lb net force is applied to a 42 Kg object at an angel. Determine the object's acceleration magnitude and direction.
An archer pulls the bowstring back for a distance of 0.470 m before releasing the arrow. What is the elastic potential energy of the drawn bow
Calculate the power of the corrective lens required by a hyperopic eye whose near point is at 100.0 cm
Mercury flows through a horizontal pip 1.25 cm in diameter and 1.2 m long. what is the rate of flow through the tube
A transformer with 1710 turns on the primary and 229 turns on the secondary is used in an electric slot car racing set to reduce the input voltage amplitude of 170 V from the wall output
A 36.4 kg child starting from rest slides down a water slide with the vertical height of 20.7 m. (Neglect friction.) What is the child's speed three-quarters of the way down.
What is maximal speed v of the elevator
An object's true weight is 135N. When it is completely submerged in water, what is the density of the object
A 800 kg car is travelling forwards at + 25 m s?1 along a level road. What is the acceleration during skidding
How many times hotter than the Sun's surface is the surface of a star the same size, but that gives off twice the Sun's energy per second (that is, is twice as luminous)?
A sound source emits sounds of frequency 190 Hz that travel by still air at 340 m/s. The listener moves at 75 m/s relative to still air toward the stationary source. What is the wavelength of the sound between source and listener.
A robot probe drops a camera off the rim of the 389 m high cliff on Mars, where the free fall acceleration is 3.7 m/s^2. Find out velocity with which it hits the ground and the time required for it to reach the ground.
In compressing the spring in a toy dart gun, 0.6 J of work is done. When the gun is fired, the spring gives its potential energy to a dart with a mass of 0.08 kg, What is the dart's speed
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