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Question: 10g of lead (specific heat= 0.128J/g Celsius) at 100 Celsius is placed on a glacier of ice at 0 Celsius. How much ice melts? Lf of ice = 333J/g
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Two ropes are pulling upward on a large crate. The weight of the crate is 420. N. The tension in the left rope is the same as the tension in the right rope. If the crate is moving upward at a constant speed, what is the tension in the left rope?
A golf ball of mass 0.045 kg is hit off the tee at a speed of 32m/s. Find the average force exerted on the ball by the golf club
During a violent storm, the wind over a flat, 200 m2 roof has a velocity of 10 m/s. What is the net force on the roof
If 2 hertz waves on a rope travel at 6 meter per second, determine what is their wavelength
Starting from rest, a 4.4-kg block slides 2.70 m down a rough 30.0° incline. The coefficient of kinetic friction between the block, Determine the work done by the force of gravity
A person throws a rock straight up into the air. At the moment itleaves the person's hand it is going 33mph. When the rock reaches its peak, how fast is it going and what is the magnitude and direction of its acceleration?
Estimate the linear separation (in kilometres) of two objects at a distance of 7.7 x 106 km that can just be resolved with an observer on Earth (a) using the naked eye and (b) using a telescope with a 4.5-m diameter mirror.
An electric generator contains a coil of 90 turns of wire formed into a rectangular loop 40.0 cm by 35.0 cm, placed entirely in a uniform magnetic field with magnitude B = 3.50 T and with Bvec initially perpendicular to the coil's plane. What is the ..
A copper cable (p=1.7*10^-8ohms*m) is designed to carry a current of 300A with a power loss of 2W/m. What is the required radius of this cable
If a camera with a 55 mm lens is to resolve two objects that are 5.0 mm from each other and both objects are 3.5 m from the camera lens, What is the resolving power
question a 1.58-kg block is held against a spring of force constant 1.25e4 nm compressing it a distance of 0.158 m. how
A 0.377 kg mass is attached to a spring and undergoes simple harmonic motion with a period of 0.57 s. The total energy of the system is 3 J
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