Search & Filtering
What is the total impedance at 20kHz of a series circuit consisting of a 1.5mH inductance, a 100Ω resistance, and a 0.08μF capacitance?
A ball is thrown making an angle of 30 degrees above the horizontal with a velocity of 20m/s from the top of a building 50m high. Calculate
(i) The time of flight (ii) The horizontal range. (iii) The velocity with which it hits the ground. (g= 10m/s²)
The shelf hangs from the ceiling by two ropes. A block of cheese rests on the shelf. A free-body diagram for this situation looks like?
A cup is sliding down an inclined surface that is not smooth. A free-body diagram for this situation looks like?
A car slowing down with friction on a horizontal floor. A free-body diagram for this situation looks like?
7.3 kg of copper sits at a temperature of 38 degrees F. How much heat is required to raise its temperature to 865 degrees F? The specific heat of copper is 385 J/kg- degree C. Submit your anwser in exponential form.
A box of mass 2.00kg is released from rest at the top of a plane inclined 15.3º above horizontal. The coefficient of kinetic friction is 0.22. What will be the speed of the mass after sliding 4.2 m along the plane? Round to the nearest hundredth.
A racing car is traveling along a horizontal track. The car, starting from rest accelerates uniformly at 4.50ms-2 for 15s when it reaches maximum speed. It then travels at this speed for 20s before deceleration uniformly at 5.60ms-2 until it come to rest.
I. Determine the maximum speed reached by the car
Ii. Determine the distance travelled by the car before reaching maximum speed
iii. Determine the time taken for the car to decelerate form it’s maximum speed and comes to rest
iv. Determine the total distance travelled by the car
An aero plane is attempting to fly in a direction towards the east at a speed of 650kmh. A steady wind of speed of 90kmh is blowing from the north towards the south across the path of the aero plane. Determine the velocity of the plane with respect to the ground
If the relative error is measuring an area of 320 m² was 0.03, calculate the absolute error for that Measurement
