Question 1

- In an electrical circuit, the voltage V is given by Ohm’s law
*V = IR*. Find the voltage when*I = 5.36 A*and*R =14.76 π.*Express your answer to*2 d p.*Indicate the units for your answer clearly. - The energy expenditure ( / ) kcal km for animals swimming at the surface of the water was given by 0.88 y f x x = = ( ) 0.01, where x is the animal’s weight in grams. Find the energy for a muskrat weighing 800 g swimming at the surface of the water. Express your answer to 2 d p. . and indicate the units for your answer clearly.
- The power P watts dissipated in an electrical circuit may be expressed by the

formula . What is the V given that P = 8.46 watts and R = 36.12*π*. Express your answer to 2 d.p and indicate the units for your answer clearly - If a ball is thrown upward with an initial velocity of 32 m / sec, then its height

after t sec is given by 2 h(t) = 32t- 16t²,

i. At what height is the object after 1 sec?

ii. How long will it take for the object to hit the ground?

Question 2

Write each expression in the form of a*n*, where* a* and *n* are any real numbers

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