Other Physics Answers

a person does 300j of work in moving a desk 1.5m find magnitude of applied horizontal force

State two condition for an object to be in equilibrium.

A 5.0 kg toolbox is pulled west across a concrete floor with a rope. The rope makes an angle of 45.0° with the floor. A force of 85.0 N is exerted on the rope, and the force of friction is 15.0 N parallel to the floor. The magnitude of the acceleration of the box is ___m/s^2.(give your answer with the correct number of signification digits and do not include units in your answer)

Note:Let West be positive.

A box of cereal is pushed with an applied force of 2.4 N [W] across a table. If the cereal box has a mass of 2.5 kg and the box accelerates at 0.41 m/s^2 [W], The coefficient of friction for the table top is___.(give your answers with the correct number of significant digits)

Note: Let West be positive

For a 60 kg mass, if the friction force is 40 N, the magnitude of the applied force required to accelerate the object at 4.0m/s^2 is ____x10^2 N (Give your answer with the correct number of Significant digits and do not include units)

Note: Let East be the positive direction

A horizontal force of 21 N is applied to a 20 kg block lying on a horizontal surface. Find the acceleration of the block, if the coefficient or kinetic friction is 0.10.

You have two containers of the same liquid. The first container has 76.0 g at T₁°C and the second has 25 g at 21°C. In order to consolidate and save space, you mix the two liquids into one container and find that the two portions have now reached an equilibrium temperature of 42.6°C. What was the initial temperature of the liquid in the first container?

A uniform half meter rule AB is balanced horizontally on a knife edge placed 15cm from A,a mass of 30g is hung from the end.whats is

A.the mass of the meter rule

B.the force exerted on a knife edge