Find the value of t, if
, = 30°, 62 = 60°, and the weight of the object is 139.3 newtons.
<
_604
139.3 n
a.
69.58 newtons
• b.
45.05 newtons
c. 25 newtons
d. 98.26 newtons

The x-coordinate of a particle in curvilinear motion is given by x = 3.1t3 - 4.9t where x is in feet and t is in seconds. the y-component of acceleration in feet per second squared is given by ay = 2.3t. if the particle has y-components y = 0 and vy = 5.0 ft/sec when t = 0, find the magnitudes of the velocity v and acceleration a when t = 1.8 sec. sketch the path for the first 1.8 seconds of motion, and show the velocity and acceleration vectors for t = 1.8 sec. answers: v = ft/sec a = ft/sec2

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?