The average acceleration of an object spinning at a constant speed of 5 m/s would be ?
a. cannot be determined
b. 25 m/s^2
c. Zero
d. 5 m/s^2

What is the average speed of a yo-yo being swung in a circle with a radius of one meter, three times per second?
a. 3 m/s
b. 2.1 m/s
c. 18.84 m/s
d. 6.28 m/s

Atoaster oven has a resistive heating element. the average rate at which it dissipates energy as thermal energy is 1.00 \(\rm kw\). in the united states, emf amplitude in household circuits is \(\mathcal e_{\max}\) = 170 \({\rm \; v}\) and the \(\rm ac\) oscillation rate is 60 \(\rm hz\). part a what is the root-mean-square current through the heating element?

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?

What is a possible explanation for a set of facts that can be tested by further investigations called