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A wheel of radius 1.6m rotates at a uniform speed. If a point on the rim of the wheel has a centripetal acceleration of 2.3m/s2 , what is the point's tangential speed
A 50-g block of copper at -15?C is added to 100g of water in a 71-g aluminum cup. The cup and the water have an initial temperature of 4.0?C. Find the equilibrium temperature of the cup
A large punch bowl holds 3.90kg of lemonade (which is essentially water) at 24.0?C. A 5.80×10-2-kg ice cube at -10.0?C is placed in the lemonade. What is the amount of ice (if any) remaining
In a series RCL circuit the dissipated power drops by a factor of 8.0 when the frequency of the generator is changed from the resonant frequency to a nonresonant frequency
A trapeze artist performs an aerial maneuver. While in a tucked position, what is her rotational speed
A glass window 0.45cm thick measures 90cm by 35cm . If the inside and outside temperatures differ by 18?, By what factor is the rate of heat transfer reduced
The tangential speed of a particle on a rotating wheel is 3.5m/s. how long will the particle take to make one revolution
A 89.3-kg horizontal circular platform rotates freely with no friction about its center at an initial angular velocity of 1.53 rad/s. Find the angular velocity of the platform with its load
You measure the length of a distant car to be subtended by an angular distance of 1.0 degrees. approximately how far away is the car
A vertical spring has one end attached to the ceiling and a 2.50 kg weight attached to the other one. find how fast the weight is moving
A diffraction grating 22.0mm wide has 6000 rulings. Light of wavelength 592nm is incident perpendicular on the grating. What is the largest value of theta at which maxima appear on a distant viewing s
A train has a mass of 5.22 ? 106 kg and is moving at 79.0 km/h. The engineer applies the brakes, What is the final speed of the train
An object of mass 1.9 kg starts from rest and slides down an inclined plane 80 cm long in 0.46 s
A 2000 kg car is slowed down uniformly from 23.0 m/s to 5.00 m/s in 4.40 s. What average total force acted on the car during that time
A 5.1 kg bucket of water is raised from a well by a rope. find the force exerted by the rope on the bucket.
How long does it take the Sun to melt a block of ice at 0?C with a flat horizontal area 1.0 m2 and thickness 1.3cm
A 2.00kg block is pushed against a 400N/m spring, compressing it 22.0 cm. When the block is released, find the speed of the block just after leaving the spring
A 4.15 g lead bullet traveling at 316 m/s is stopped by a large tree. what is the increase in temperature of the bullet
A 5 kg ball is dropped and hits the ground with a velocity of 14 m/s. using the law of conservation of energy, what height was it dropped from
Gas is confined in a tank at a pressure of 9 atm and a temperature of 15 degrees C. what is the new pressure in the tank
A 27.0 g copper ring at 0°C has an inner diameter of D = 3.04591 cm. A hollow aluminum sphere at 87.0°C has a diameter of d = 3.05180 cm. What is the mass of the sphere
If an airplane has airspeed 100 km/hr southwest but is traveling 140 km/hr south relative to the ground
A 1.5kg ball and a 3.0kg ball are connected by a 3.0m long rigid, massless rod. What torque will bring the balls to a halt
A sled of mass m is pushed for 5 seconds at a constant force. A sled of mass M (more) is also pushed for 5 seconds. What is the energy of each sled
Two children carry a lightweight 2.4m -long horizontal pole with a water bucket hanging from it. How far is the bucket from the older child