Physics, 26.07.2021 03:20 ani61

A uniform plank AB of length 5 m and mass 22 kg rests horizontally in equilibrium on supports at C and D. AC = 1.7 m and CD = 2.5 m. Find the reaction on the plank at D. An object of mass 6 kg is now attached to the plank at A and equilibrium is maintained. Calculate the new reaction at C.

Answers: 3

Show answers

Another question on Physics

Physics, 22.06.2019 09:50

Which statement correctly describes the current in a circuit that is made up of any two resistors connected in parallel with a battery? a. the current in the battery and in each resistor is the same b. the current the battery equals to the sum of the currents in the resistors c.the current in the battery is less than the current in either resistor d. the current in the battery equals to the product of the currents in the resistors

Answers: 1

Answer

Physics, 22.06.2019 12:50

Assume you measured the mass of the cart to be (500 ± 1) g and the mass of the additional mass you put on the cart to be (500 ± 1) g as well. since the scale you are using in the lab cannot measure objects heavier than 600g you will have to sum up individual pieces and propagate the error. so what would be the mass and the standard error of the cart and the mass

Answers: 3

Answer

Physics, 22.06.2019 16:30

Is there a point between a 10 nc charge and a 20 nc charge at which the electric field is zero?

Answers: 2

Answer

Physics, 22.06.2019 18:50

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.

Answers: 3

Answer

You know the right answer?

A uniform plank AB of length 5 m and mass 22 kg rests horizontally in equilibrium on supports at C a...

Questions