Choose one contact and one non-contact force from the following list, then in your own words explain why you believe they are a contact or non-contact force. Feel free to utilize other resources to support your claims. Answers should be at least 3-4 sentences each. Types of Forces
Contact: Friction, Tension, Elastic, Reaction, Air Resistance
Non-Contact: Gravity, Nuclear, Electrostatic, Magnetic

Asmall grinding wheel has a moment of inertia of 4.0×10−5 kg⋅m2 . what net torque must be applied to the wheel for its angular acceleration to be 150 rad/s2 ?

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.

At what time would the magnitude of the velocity reach 36.00 km/hr