Power - math word problemsPower is the amount of work done (energy supplied) per unit time. In physics, power is the amount of energy transferred or converted per unit time. In the SI units, the unit of power is the watt, equal to one joule per second. Other units are, for example, 1 hp (one horsepower; 1 hp = 735.5 W) and then derived units such as kW - kilowatt.
Number of problems found: 259
- The tickets
The tickets to the show cost some integer number greater than 1. Also, the sum of the price of the children's and adult tickets, as well as their product, was the power of the prime number. Find all possible ticket prices.
- Concrete column
The concrete column of the highway bridge has the shape of a block with dimensions of 1m x 0.8m x 25m. It should be lifted by crane to a height of 20m. What is the power of his engine if the lifting takes 2 minutes?
In homes with more floor elevators are used. For passenger transport, the most commonly used traction elevator counterweight. The top of the shaft engine room with the engine. The car is suspended on a rope, which is guided up over two pulleys to the coun
- Stand-by power
Determine the year-round consumption of appliances in stand-by mode. Stand-by mode is regime the unit continuously 24 hours consume a tiny amount of electricity. Typically are televisions, electric ovens, radios, computers, monitors, satellite receivers,
Is true for any number a,b,c equality:? ?
- Electric cooker
During which time t does an electric cooker with power input P = 500 W and with efficiency n = 75% heat water with mass m = 2 kg and temperature t1 = 10°C to the boiling point (t2 = 100°C). The specific heat capacity of water is c = 4 180 J. Kg-1. K-1
Calculate the coordinates of the circle center: ?
Solve quadratic equation: ?
To binomial ? add a number to the resulting trinomial be square of binomial.
- Highway tunnel
The highway tunnel was built from two ends in the north-south direction. The average daily performance of the "northern party" rasters was higher than the average daily power of the "southern party" of the rasters. After 55 business days, both parties met
Calculate the side of a square with a diagonal measurement 10 cm.
- Primes 2
For what primes p,q,r is true: p2-(q+r)2=647
Express the expression ? as the n-th power of the base 10.
Can the expression ? be factored into rational factors?
- Height UT
How long is height in the equilateral triangle with a side b = 43?
Simplify powers multiplication: (3+22)(5-42)
- Cube root
Find cube root of 18
- Square roots
What is equal to the product of the square roots of 295936?
Calculate the surface cube with edge 11 dm.
- Special cube
Calculate the edge of cube, if its surface and its volume is numerically equal number.
See also more information on Wikipedia.