- Mrs. Hunt is walking at 1.1m/s down the school hallway when she spots Ms.Fernandez defacing a Science 10 textbook. If she accelerates at 0.35m/s^2 for 6.0 s, what would be her speed when she reaches Ms Fernande (3.2m/s)
- 17. Four resistors are placed in series in a circuit Their resistances are R_(1)=10.1Omega ,R_(2)=19.8Omega R_(3)=50.3Omega ,R_(4)=25.4Omega . What is the total resistance of the circuit? a. 95.5Omega b. 108Omega C. 80.2Omega d. 106Omega
- 1. A physics student does a work on a 2.5 kg curling stone by exerting 50 N of force horizontally over a distance of 2 m. Calculate the work done by the student on the curling stone. 2. Calculate the kinetic energy of the following objects. (a) A man of mass 50 kg running at a speed of 20m/s (b) A200 g of bullet fired at a speed of 300m/s (c) A car of mass 1000 kg travelling at 80 meter per second 3. Calculate (a) The potential energy of 10 kg stone placed at a height of 10m above the ground. (b) The position of the 10 kg stone if it possesses a potential energy of 400 J. 4. A crane is capable of doing 1.5times 10^5 of work in 10 seconds. What is the power of the crane in watts?
- 14. What is 1 V equivalent to? a. 1J/C b. 1C/J c. 1A/C d. 1 A/J
- 1. An oil drop has a mass of 4.95times 10^-15 kg experiencing a downward acceleration of 18.4m/s^2 Calculate the electric force.
