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Jane is walking at such speed so that her kinetic energy is 20 J. What is her speed? It started to rain. Jane runs at a rate of 4.2 m/s. Find the change in her kinetic energy. Jane had a mass of 50 kg.
The heat energy needed to raise the temperature of steam from 100 to 120 degrees Celcius (in Joules) =
The angular position of a swinging door is described by θ(t)= (5.00+ 2.00t²) rad
Determine the angular position, angular speed, and angular acceleration of the door at t=3.0s.
A disk with a radius of 0.1 m is spinning about its center with a constant angular speed of 10 rad/sec.
What are the speed and magnitude of the acceleration of a bug clinging to the rim of the disk?
When talking a penalty kick, footballer applied a force of 30.0 N for a period of 0.05 s. If the mass of the ball is 0.075 kg, Calculate the speed with which the ball moves off.
A uniform sphere of weight 200N is placed on a V- shaped wedge formed by to two flat frictionless surfaces what is the magnitude of the force exert on the sphere by each Force
A brass rod is 2m long at a certain temperature . what is it's lenght for a temperature rise of 100k if the expression vity of brass is 1.8*10^_6 k^7
Solve the gold density
D=57900 kg÷3m³
D=77200 kg÷4m³
D=96500kg÷5m³
resolve each of the following vector into components.
•F1=11×10⁴N at 33°to the positive x-axis
•F2=15 GN at 28° to the positive x-axis
•F3=11.3kN at 193° to the positive x-axis
•F4=125 ×10⁵ N at 317° to the positive x-axis
To determine and verify experimentally the law for total resistance (RT) of a series-parallel combination circuit.
2. To verify that the voltage across each leg in a parallel circuit is the same as the voltage across the parallel network.
Equipment
Project board 1 x 68Ω resistor
Multi-meter 1 x 82Ω resistor
Variable power supply 1 x 150Ω resistor
Wires 1 x 1k2 Ω resistor
1 x 10kΩ resistor
