An object completes 1500 cycles in 50 s. What is the frequency? 30 Hz
0.03 Hz
75,000 Hz
1500 Hz

Ais useful when you need a simple machine to you separate two things. a. lever b. screw c. pulley d. wedge

When using the scientist method, which step comes last?

In which situation is the acceleration of a car negative? question 5 options: a)the velocity of a car was 75 km/hr over 4 hours. b)the velocity of a car reduced from 50 km/hr over one minute. c)the velocity of a car increased from 40 km.h to 75 km/h over 15 minutes. d)the velocity of a car was 45 km/hr at 2: 00pm and at 4: 00pm its velocity was 85 km/ht.