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Consider a motor which exerts a constant torque of 25.0 N m to a horizontal platform whose moment of inertia is 50.0 kg m^2. Suppose that the platform is initially at rest and the torque is exerted
How many of each kind of truck must company buy? Give row reduced matrix and write the sentence interpreting meaning. Write purchasing options for company.
A crate of 20.0 kg slid down a 3.00 m long ramp inclined at 30.0° to the horizontal. i) Compute the crates change in the gravitational potential energy.
A man lifted an object of 25.0 kg from the bottom of a 0.750 meter deep hole to a point 1.50 m over the ground. i) Compute the work done in lifting the object.
At local playground a child on a swing has a speed of 3.11 m/s if the swing is at its lowest point. Determine how high vertically above the lowest point is the swing if the speed has been decreased
The half life of cesium-137 is 30 years assume we have a 10 g sample. Determine the function which models mass remaining after t years.
When the utmost height the dart can reach with the spring fully compressed is given by h, then what fraction of this height will the dart reach if the spring is compressed by 1/4 of its maximum com
A boy is running at a speed of (3.6 m/s) and grabs a rope suspending vertically from a tall tree in order to swing out over a pond. Explain how high can he swing upward?
A car of 1300 kg is traveling with a speed of 13.0 m/s on a frictionless, horizontal surface till it encounters a spring. When the car compresses the spring 63.0 cm prior to coming to rest, determin
The population of the certain species of fish has the relative growth rate of 1.2% per year it is evaluated that population in 2000 was 12 million. Determine the exponential model for population t y
Three similar resistors are joined in parallel. The equivalent resistance rises by 700 if one resistor is eliminated and joined in series with the remaining two, which are still in parallel. Determi
An animal tendon of 18 cm long was found to stretch 4.0 mm by a force of 13.3 N. The tendon was around round with an average diameter of 8.0 mm. Compute the elastic modulus of the tendon.
Compute the smaller parts flow speed. Answer must be in units of m/s. Compute the smaller parts pressure.
Find without graphing, whether function has the minimum value or a maximum value. Determine minimum or maximum value and find where it happens.
The asteroid is roughly spherical (strange for such a small body) having a radius of 19.5 km. i) Determine the acceleration of gravity at the surface of asteroid.
She would like to retire with the pension of $10,000 per quarter for15 years. If she works 27 years before retiring, how much money should she and her employer deposit every quarter?
Explain how much dry solute would you take to prepare each of the following solutions from the dry solvent and the solute? 115g of .100m NaNO3, 115 ml of 0.120 M NaNO3, 115g of 1.4% NaNO3
A bat flies toward a wall, emitting a steady sound having a frequency of 22.5 kHz. This bat hears its own sound plus the sound reflected through the wall. Explain how fast must the bat fly to hear a
A base-ball is thrown from the roof of a building 40.0 meters tall. The initial velocity of the ball is 20 m/s and the angle at which the ball is thrown is 37 degrees over the horizontal. (i) Deter
When Mg metal and a solution of an alkyl halide in ether are mixed, if the formation of a Grignard reagent does not begin spontaneously than one sometimes adds a small amount of iodine to the flask
Write revenue equation in terms of number of extra tickets sold. What number of passengers, and what price, will make maximum revenue?
Determine the osmotic pressure of a magnesium citrate laxative solution at 37C which is having 30.0g of magnesium citrate in 250ml of solution. Suppose the complete dissociation of the ionic compou
A person walks into a room which has, on opposite walls, two plane mirrors generating multiple images. Determine the distances from the person to the first three images view in the left-hand mirror
A house with a 2.90 m high ceiling and 1.70 x 103 m2 floor areas is to be heated with propane. Determine the number of kilograms of propane would be required to raise the temperature of th
You are standing on a small stool which places your eyes 3.10 over the bottom of the pool. As you look at the target, your look is 30 below horizontal. At what angle beneath horizontal must you thro