A tow can pull a car out of a ditch in 7.5 seconds. How many work is done if the truck has power of 5500 watts?

Which statements describe the characteristics of asteroids? Check all that apply. formed 4.6 billion years ago orbit the Sun beyond Jupiter range in size from a few feet to more than 500 miles across have a total mass greater than the mass of the

Which of the following transfers energy in the form of vibrating electric and magnetic fields? A. An electromagnet B. A generator C. An induced current D. An electromagnetic wave

Frank and Lisa are analyzing the chart, which shows the speed at which light travels through different media. Frank says that light travels through diamond with the greatest frequency.

The distance between the 1st and 2nd maxima is 0.3 cm when the screen is located 2 m away. If d = 0.4 mm, a) what is the wavelength? b) what is the size of central peak?

Which of the following could be described as "impulse equals change in momentum"? A. Law of conservation of momentum B. Law of conservation of energy C. Impulse-momentum theorem D. Rebound-crumple theorem

an electric clothes dryer has a resictance of 16 Ohms it drawes 15 A of current what is the voltage in volts of the wall outlet that it is pluged into

A lorry with a mass of 5000kg accelerates to overtake a caravan on the motorway. Its acceleration is 1.5m/s². What force must the engine be providing? You can ignore the effects of friction and air resistance

Norma kicks a soccer ball with an initial velocity of 10.0 meters per second at an angle of 30.0% if the ball moves though the air for 3.2 seconds what's the horizontal distance traveled by the ball

Suppose s (t) is the position of an object moving along a line at time t is greater than or equal to 0. What is the average velocity between the times t=a and t=b? What is the instantaneous velocity at t=a?

Estimate how long it would take one person to mow a football field using an ordinary home lawn mower. suppose that the mower moves with a 1-km/h speed, has a 0.5-m width, and a field is 360 ft long and 160 ft wide. 1 m = 3.281 ft.