Two circuits (labelled #1 and #2) have different capacitors but the same batteries and bulbs. The capacitors in circuit #1 and circuit #2 are identical except that the capacitor in circuit #2 was cons
In circuit 1 at the right, ohmic resistor R1 dissipates 5 watts; in circuit 2 ohmic resistor R2 dissipates 20 watts. The wires and batteries have negligible resistance. The circuits contain 10 V batte
Get the torque and anti-torque using F L=W Lcm formula. *Lcm is the distance from its suspension point (the 30cm mark) to the point where it balanced.
See the picture, get the torque and anti-torque taking the following points as the axis of rotation: (a) The far left end of the meter stick. (b) The point from which the mass was hung. (c) The b
Are the 4 torques nearly equal? (HINT: multiply each measured force by its corresponding moment arm to check whether they are equal to each other. *You don't need to know the total downward torque
An 78kg man drops from rest on a diving board -3.2 above the surface of the water and comes to rest 0.57s after reaching the water. The acceleration due to gravity is 9.81 m/s^2 What force does the w
A 3kg object moving at 18m/s in the positive x direction has a one dimensional elastic collision with an object initially at rest. After the collision the object of unknown mass has a velocity of 30 m
A student performs a ballistic pendulum experiment. Initially the bullet is fired at the block while the block is at rest (at its lowest swing point). After the bullet hits the block, the block rise
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1. Can you show me step by step how to solve this problem?:
- The Earth’s rate of rotation is constantly decreasing, causing the day to increase in duration. In the year 2000 the Earth takes about 0.548 s longer to complete 365 revolutions than it did in the year 1900.
- (a) What is the average angular acceleration of the Earth?
- (b) If this average acceleration remains constant, in what year will the Earths rotation come to rest?
2. I do not understand this Ideal Gas Law and Kinetic Theory question. Can you help me set it up?
- A spherical balloon is made from a material whose mass is 3.00-kg. The thickness of the material is negligible compared to the 1.5-m radius of the balloon. The balloon is filled with helium (He) at a temperature of 305-degrees K and just floats in the air, neither rising nor falling. The density of the surrounding air is 1.19-kg/m^3. Find the absolute pressure of the helium gas