Calculate the energy consumption (Work) used by a toaster oven with a power draw of 1.40 kW, which is used for 5.80 minutes. O 0.105 kWhr 0.117 kW.hr O 0.135 kWhr 0.083 kWhr 0.093 kWhr Consider a tennis ball of mass 0.040 kg making contact with a racquet at 23.7 m/s for 1.30 ms. If the return speed (assume 1-D motion) is 22.4 m/s, calculate the magnitude of the average force on the ball by the racquet. O 1.245 x 103 N O 0.900 x 103 N O 2.170 x 103 N O 1.260 x 103 N O 1.420 x 103 N A 1.15 kg falcon catches a 0.235 kg dove from behind in mid-air. What is their velocity after impact if the falcon's initial velocity is 27.5 m/s and the dove's initial velocity is 5.15 m/s in the same direction? O 11.9 m/s O 32.8 m/s O 23.7 m/s 4.22 x 10-2 m/s O 3.05 x 10-2 m/s What is the momentum of a garbage truck that is 12500 kg and is moving at 10.0 m/s ? O 4.00 x 10-6 kg.m/s O 8.00 x 10-4 kg-m/s O 1.25 x 103 kg.m/s O 1.25 x 104 kg.m/s O 1.25 x 105 kg-m/s Two small, identical steel balls (m = m2) collide completely elastically. Initially, Ball 1 is moving with velocity v1, and Ball 2 is stationary (v2 = 0). After the collision, the final velocities of Ball 1 and Ball 2 are; OV1 2V1 O-V1 2V1 V1/2 ; 2/2 0 ; V1 -v 1 ; 0 Two carts travel along a horizontal, frictionless track as shown. The mass m cart traveling at speed 5v eventually catches up, collides with, and sticks to the mass 4m cart traveling at speed v. What is their speed after colliding and sticking together? 5v m 6v/5 3v O 9v/5 O 6v O 3v/5 =1= 4m