Fundamentals of Physics + unit conversion - math problems
Number of problems found: 85
- Motor physics
Car traveling at 130 km/h on the highway. Pulling power of the motor is 8 kN. Determine engine power in kW.
- Gold horseshoe
Calculate the volume of a gold horseshoe that weighs 750g.
A 60 W bulb consumes 0.12 kWh of electricity. How long did she stand light without a break?
An electric motor makes 3,000 revolutions per minutes. How many degrees does it rotate in one second?
By what percentage does the sound intensity increase if the sound intensity level increases by 1 dB?
- 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?
- Time clock
What is the angle of the hour hand and the minute hand, if it is 0:40?
Determine the resistance of the bulb with the current 200 mA and is in a regular lamp (230V).
- Car loop
The toy car runs at an average speed of 2 m/s. In a minute, it will pass the entire circuit five times. How long is the loop?
- The resistance
What is the resistance of an aluminum wire 0.2 km long and 10 mm in diameter?
A current of 2A passes through the immersion cooker at a voltage of 230V. What work do the electric field forces in 2 minutes?
- Clock Tower
What angle is betwenn hands on Clock Tower when show 17 hours and 35 minutes?
The kilogram weight has a volume of 116 ml. From which material is it probably made? Use substance density tables, e. G. mathematical-physical-chemical tables.
- Current in the conductor
Calculate the current in the conductor (in mA) if it is connected to a 4.5 V voltage source and its resistance is 20 (ohm).
Please calculate using Pascal's law. The window of the diving helmet has a surface content of about 7dm2. Calculate what pressure force acts on the window at a depth of 20 meters below the water surface.
How much m ^ 3 of sand can be loaded on a car with a load capacity of 5 t? The sand density is 1600 kg/m3 .
At what horizontal distance reaches the car weight m = 753 kg speed v = 74 km/h when the car engine develops a tensile force F = 3061 N. (Neglect resistance of the environment.)
- Harmonic oscillator
Calculate the total energy of a body performing a harmonic oscillating motion if its mass is 200 g, the amplitude of the deflection is 2 cm and the frequency is 5 Hz. Round the result to 3 decimal places.
- Iron cast
What is the weight of cast iron with a volume of 3575 cubic centimeters? The density of the cast iron is 7600 kg/m3
- Friction coefficient
What is the weight of a car when it moves on a horizontal road at a speed of v = 50 km/h at engine power P = 7 kW? The friction coefficient is 0.07
Fundamentals of Physics - math word problems. Unit conversion - math word problems.