A sock stuck to the side of a clothes-dryer barrel has a centripetal acceleration of 22 m/s2. If the dryer barrel has a radius of 35 cm, what is the tangential speed of the sock?
A sock stuck to the side of a clothes-dryer barrel has a centripetal acceleration of 22 m/s2. If the dryer barrel has a radius of 35 cm, what is the tangential speed of the sock?
What is the tangential speed of a passenger on a Ferris wheel that has a radius of 48 m and rotates once in 23 sec?
a. pi/15 m b. 15/pi m c. 60pi m d. 4.2 m e. 30 m
Joey weighs 600 N on earth (that is, the force of gravity pulling down on him is 600 N). Some strange and inexplicable things begin happening to the earth. Let the radius of the earth be Re and its...
Joey weighs 600 N on Earth (that is, the force of gravity pulling him down is 600 N). Some strange and inexplicable things begin happening. Let the radius of the earth be Re, and its mass Me (e is...
A space vehicle is traveling at 4220 km/h relative to Earth when the exhausted rocket motor is disengaged and sent backward. The relative speed between the motor and the command module is then 93...
A 4.30 g bullet moving at 717 m/s strikes a 630 g wooden block at rest on a frictionless surface. The bullet emerges, traveling in the same direction with its speed reduced to 472 m/s. (a) What is...
In tae-kwon-do, a hand is slammed down onto a target at a speed of 14 m/s and comes to a stop during the 7.0 ms collision. Assume that during the impact the hand is independent of the arm and has...
Suppose that by stirring 495 g of water you are able to increase its temperature from 19.0° C to 21.0° C. Find the increase in the water's entropy. answer in J/K
Ice of mass 12.0 kg at 0.00° C is placed in an ice chest. The ice chest has 2.80 cm thick walls of thermal conductivity 1.00 10-5 kcal/s · m · C° and a surface area of 1.20 m2.( a) How much heat...
A Scientists want to place a 2600 kg satellite in orbit around Mars. They plan to have the satellite orbit a distance equal to 2.2 times the radius of Mars above the surface of the planet. Here...
The question is: A wheel starts from rest and in 10.65 s is rotating with an angular speed of 5.210 π rad/s. a.)Find the magnitude of the angular acceleration of the wheel. b...
I need to know if it is or isn't and the reason why or why not.
a) A man weighing 785 N lies on a bed of nails. Find the average pressure exerted by a nail on his skin if there are 1060 nails and the flattened point on each nail has a radius of 0.500 mm. (b)...
A pressure cooker is a covered pot sealed everywhere except for a small circular opening in the top. A small weight placed over this opening determines the pressure at which steam is released from...
The moon is revolving around the earth at about 1 rev per 27.3 days. Assume that the average radius of the moon is 1,080 miles and the average distance from the earth to the moon is 238900 miles,...
Suppose a gas of 2D atoms is trapped inside a square of area A. What is the expression for the work done on the system as the area of the square changes?
Question: At a water park, Hugo climbs a 15.00m springboard, in 22.00s, to execute his famous THUNDER CANNON BALL. Hugo jumps up at 6.000m/s [up] off the end of the diving board and propels his mass,...
I need help with this problem i have no clue where to even begin with it. Everything i try is the wrong answer.
If a heat engine takes in 957 watts of heat from a source at a temperature 1,000 kelvin and dumps off 126 watts of heat to a heat sink at 300 kelvins. What is the efficiency of the heat engine?