Themes, topics - math word problems - page 71 of 174
Number of problems found: 3474
- Wave travel time
A plane wave has an amplitude u0 = 40 cm and a frequency f = 10 Hz. The speed of wave propagation through the medium is v = 40 cm/s. At a distance x = 10 cm from the starting point, the wave has an instantaneous deflection u = 15 cm. How long does it take - True and false
A circle k(S; 8 cm) is given. Furthermore, points K, L are given such that the following holds: the length of SL is 6 cm, the length of SM is greater than 8 cm. Which of the following statements is not true a. The circle m(M; |ML|) has exactly two common - The mountain hut
A mountain hut has a food supply for 8 tourists lasting 15 days. Half as many more tourists arrive unexpectedly. How long will the food supply last, assuming the daily ration per person remains the same? - Shopping meeting
Kate left the store with a heavy purchase at a constant speed of 0.5 m/s. Her brother Michael ran to help her at a constant speed of 3.25 m/s. How many meters did Kate have to walk with her shopping before meeting Michael if the store is 300 m from the ho - Squirrels
The squirrels discovered a bush with hazelnuts. The first squirrel plucked one nut, the second squirrel two nuts, and the third squirrel three nuts. Each new squirrel always tore one nut more than the previous squirrel. When they plucked all the nuts from - Earth rotation
How fast is the place on the Earth's equator moving if the Earth's radius is 6378 km? - Cyclist travel time
The cyclist will travel 22 km in an hour and a half. How long would it take to drive 30 km? - Four children
What is the probability that in a family with four children, there are: a) at least three girls b) at least one boy, If the probability of a boy is 0.51? - Bank withdrawal time
We will deposit € 10,500 at the bank at 1.1% interest, and we want to withdraw € 11,000. How many years do we have to wait? Round to 2 decimal places. - Apprentice
A master craftsman helped an apprentice complete part of a task, and the apprentice completed the rest himself. It turned out that the time needed to complete the task was three times shorter than if the apprentice had completed the entire task himself. H - Buoyancy force
Find the magnitude of the buoyancy force acting on a body with a volume of 1 dm³ whole immersed: a) in water b) in ethanol. - Bronze alloy
Bronze is an alloy of tin and copper. Copper is 85% the rest is tin. How much bronze do we make from 51 kg of copper? Will 8 kg of tin be enough for us? - Bus average speed
The bus left from stop A to stop B. The distance between the stops is 3.6 km. The timetable states that he has 3 minutes to cover this distance. At what average speed in km/h would the bus have to travel in order to pass the time interval? - Ball kick speed
The football player kicked a 400 g ball with a force of 480 N during a penalty. How fast did the ball again if it was subjected to an impact force of 0.01 s? - Worker production
Eight workers produce 2048 products per shift. In how many hours would ten workers produce the same amount of products? (shift is 8 hours) - Oscillation time
Calculate the oscillation time T of the undamped harmonic oscillating motion of a particle of mass m = 10 g if the force holding the particle in this motion has a value of F = 0,05 N at a deflection of x = 3 cm. - Weather
Weather. At 5:00 am, the temperature was 28 °C, and at noontime, it rose by 9 °C. By 4:00 PM, it dropped 3 °C; by nighttime, it was 4 °C less. What is the room temperature this time? - Oscillator deflection The amplitude of the linear undamped harmonic oscillator is A = 12 cm, and the frequency f = 15 Hz. What is its instantaneous deflection at time a) t1 = 0.02 s, b) t2 = 0.04 s, when it was zero at time t = 0 s?
- Snow White transport
The dwarfs dragged Snow White in a coffin from the garden to the house as Snow White with the coffin was heavy. The dwarves pulled her with a speed of 0.2 m/s. The place where Snow White and the coffin were laid was 15000 cm away from the place in the hou - Bank withdrawal time
We will deposit € 8,500 into the bank at 1.3% interest and withdraw € 8,700. How many years do we have to wait? Round to 2 decimal places.
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