Fundamentals of Physics - math word problems - page 41 of 50
Number of problems found: 985
- Resistance of the resistor
The resistor terminals have a voltage of 20 V, and a current of 5 mA is passed through. What is the resistance of the resistor? - Electric Kettle Current
The kettle is connected to a voltage of 230 V. Its resistance is 130 ohms. What is the current flowing through the kettle? - Toboggan run
The length of the toboggan run is 60 m, and the height is 8 m. The boy pulls a sled weighing 15 kg. How hard does the boy pull the sled uphill? - A steel
A steel hammer with a weight of 0.5 kg hits the nail at a speed of 3 m/s. How deep does the nail penetrate the wood if the hammer acts on the nail with an average force of 50 N? - Rollerblade
Martin rollerbladed 1 km per minute. What distance would he cover at the same speed in 3 3/4 hours? - Kinetic Energy Braking Force
Johnny is skating at a speed of 18 km/h. His kinetic energy is 0.5 kJ. Johnny weighs 40 kg. Calculate: 1. What work will the braking forces do before Johnny stops? 2. What is the braking force if Johnny stops after covering a distance of 14 m? - Speed increase
The tourist travels at an average speed of 3.5 km/h. The last train takes him 50 minutes. If he still has 5 km to go to the station, how much does he have to increase his speed? - Thunder and lightning
There was a glimpse of the sky, and we heard thunder in 4.5 seconds. The light spreads at 300,000 kilometers per second, so we can assume the flash instantly without delay. However, the sound's speed is much lower in the air, one-third of a kilometer per - Average distance
The tourist section covered 14.5 km in 2.5 hours. What distance did he cover on average per hour? - Motorcycle speed
Determine the average speed of a motorcycle ridden 1/3 of the total ride speed at 30 m/s and 2/3 of the total ride speed at 15 m/s. - Car acceleration
A driver traveling at 72 km/h decides to overtake another car traveling at the same speed. Over a period of 4.0 seconds, he increases his speed to 90 km/h. Calculate his acceleration and the distance he covered while accelerating. - Free fall
How long does the stone fall freely into a depth of 80 m? What speed will it hit the bottom of the abyss? - Gear train
A gear train is assembled from three gear wheels. The first has 165 teeth, the second 132 teeth, and the third 231, where the second engages with the first and the third with the second. The first and third do not touch. How many times per minute will all - Warmer weather
This morning the temperature was -6 °C. What was the temperature yesterday if it was three times warmer? - Copper density
The copper roller weighs 547.4 g. To determine its volume, use the copper density, which is ρ = 8960 kg/m³. - Passenger trains Two trains are traveling towards each other on parallel tracks, one at a speed of 34 km/h and the other at a speed of 47 km/h. A passenger sitting on the second train noticed that the first train passed him in 6 seconds. How long is the first train?
- Force Between Charged Balls
Calculate the force between two balls with charges of +3 μC and −4 μC when they are 60 mm apart. Calculate the force in a vacuum (k = 9 × 10⁹ N·m²/C²). - Casting material
What material is the casting that weighs 45.2 g and has a volume of 4 cm³? If it is a simple chemical element, write its chemical symbol. - Inter city bus
An inter-city bus leaves Suva at 10:00 AM and reaches Nadi at 1:00 PM, covering a distance of 219 km. How long did it take to reach Nadi? - Average speed 4
Starting at home, Tony traveled uphill to the store for 45 minutes at 8 miles per hour. he then traveled back home on the same path at a speed of 24 miles per hour. What is his average speed for the entire trip?
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