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You agree to build a backyard rope tow to pull your siblings up a 20-m slop that is tilted at 15 degrees relative to the horizontal. You must choose a motor that can pull your 40 kg sister up the hill. Determine the force that the rope should exert on your sister to pull her up the hill at a constant velocity.
Please show your work, so I can understand your reasoning
An ambulance traveling at 38 m/s approaches a car heading in the similar direction at a speed of 27 m/s Find at what frequency does the driver of the car hear the siren
Evaluate the magnitude and direction of the friction force (assumed constant) that acts on the bullet.
In an aortic aneurysm, a bulge forms where the walls of the aortaare weakened. If blood flowing through the aorta (radius 1.0 cm)enters an aneurysm with a radius of 3.0 cm, how much on average isthe blood pressure higher inside the aneurysm than t..
An LC circuit includes a 0.010 µF capacitor and a 400 µH inductor. If the peak voltage on the capacitor is 190 Volt, find what is the peak current in the inductor
A wire of radius a is surrounded by a cylindrical conductor of inner radius a and outer radius 2a,. find the radius at which the magnetic field is zero
a student makes a simple ac generator by using a single square wire loop 14 cm on a side. the loop is then rotated at a
two tanks are engaged in a training exercise on level ground. the first tank fires a paint-filled training round with a
The luxury linerQueen Elizabeth 2 has a diesel-electric powerplant with amaximum power of 87 MW at a cruisingspeed of 33.5 knots. What forward force is exerted on the ship at this speed
To focus a camera on objects at dissimilar distances, the converging lens is moved toward or away from the image sensor, so a sharp image always falls on the sensor. A camera with a telephoto lens (f= 200.0mm) is to be focused on an object located fi..
An aircraft weighing 865 Newton is accelerated at 12 m/s2 for 12 s, at which time the aircraft launches. Calculate how much work was done on the aircraft
A 3.19 kilogram box is pulled from rest a distance of 5.73 meter on an ice covered (frictionless) surface by a horizontal force. Obtain the average pulling force exerted on the box
Find a relationship for the minimum height H necessary to ensure that the speed of the capsule is sufficient to enter orbit once it reaches the surface. Your answer should only include the variables given above (i.e. R, d or K) or other universal ..
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