5000 j of heat are added to a system. it does 3500 j of work on the surroundings. what is δe in j?

Two technicians are discussing disc brake rotor service. Technician A says that the inner races (bearing cups) should be removed from the rotor before it is mounted on the lathe.

In object is thrown off a cliff with a horizontal speak of 10 m/seconds. After three seconds the object hits the ground. Find the height of the cliff and the total horizontal distance traveled by the object.

Why is gravity so weird? Will mark as brainliest

What is the main function of the lymphatic system? A. Maintaining fluid balance B. Fighting infection C. Cleaning the blood D. Making lymph

What is the difference between mass and weight in Physical Science?

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F

A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude of vibration?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.