Which of the following is a source of water pollution? a. sewage b. oil spills c. fertilizers d. all of the above

What is the direction of the tangential speed when a car is driving around a circular curve? A. toward the center of the curve B. out from the center of the curve C. straight ahead, in the direction the car is moving D.

What do radio waves, microwaves, light, and x-rays have in common?

Two boxes with different masses are tied together on a frictionless ramp surface. what is the tension in each of the cords?

Which statements accurately describe satellite motion? Check all that apply. Gravity is the only force acting on a satellite. Inertia is the only cause of a satellite's circular motion.

What are two similarities between density and weight?

Which data set has the smallest standard deviation? A. 1,6,19,20,85,29,0 B. 22,22,23,23,22,22,23 C. 6, 7, 6, 7, 1004, 980, 350 D. 99, 199, 299, 55, 44,33, 22

To calculate the specific heat capacity of some liquid, we have poured 235 g of water at a temperature of 18.0°C into 250 g of this liquid at a temperature of 27.0 °C in a calorimeter with a heat capacity of 210 J/K. The temperature stabilized at 20.

How do you reduce friction

3. A 16 kg barrel is lifted up by a rope. The barrel accelerates at 1.4 m/s2. Find the force exerted by the rope. Show all your work. Answer:

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