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Engine 1 has an efficiency of 0.19 and requires 6000 Joule of input heat to perform a certain amount of work. Engine 2 has an efficiency of 0.31 and performs the equal amount of work. Find how much input heat does the second engine require?
a pen contains a spring with a spring constant of 228 nm. when the tip of the pen is in its retracted position the
A soccer ball, which has a circumference of 70.0 centimeter, rolls 14.0 yards in 3.35 second. Obtain the average angular speed of the ball during this time
a laser light has a wavelength of 670 nanometers and the separation between the two first order diffraction minima is
A polypropylene (pp) utility cart is absorbing RF radiation from a wifi laptop sitting on a metal stand over the cart. The polypropylene (pp) utility cart is now warm around its perimeter
A sphere of radius 20 cm and mass 1.8 kg starts fromrest and rolls without slipping down a 30 deg incline that is 10 mlong. Calculate its rotational speed when it reaches the bottom
You are in charge of regulating the temperature of the swimming pool for the next Olympic games. The water in the pool fills a volume of 25 m x 50m x 2m and the water should be kept between 25 and 27 degrees Celsius. how much ice ( in kg) will you ..
Explain what would happen to the length of a meter stick traveling near the speed of light with its long dimension perpendicular to the direction of motion
A uniform plate of height 1.920 m is cut in the form of a parabolic section. The lower boundary of the plate is defined by: y = 1.000 x2. The plate has a mass of 1.17 kg.
Mason's net income (pre-bonus) is expected to be $3,000,000, and bonus expense is deducted in computing net income. Illustrate what is the amount that needs to be recorded for estimated bonus liability for 2010?
Although it is uncommon, orthopaedic surgeons have seen patients who have torn their biceps tendon when forces of greater than 390 N have been exerted on the tendon with the arm bent at the elbow so that the forearm is parallel to the ground.
Michelle is enjoying a picnic across the valley from a cliff. She is playing music on her radio, what is the intensity of the music arriving at the cliff
After a golf ball is hit it takes off with an initial speed of 29.5 m/s and at an angle of 39.5° with respect to the horizontal. The golf field is flat and horizontal. Neglecting air resistance how far will the golf ball fly?
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