A car is raised a certain distance in a service-station lift, thus giving it potential energy relative to the floor. if it were raised twice as high, how much more potential energy would it have?

2. Which of the following is an example of acceleration. A. a twirling ballerina B. a car on a cruise control going 50 m/s east C. Mrs. Crisp sliding on the gym floor at + 2.23 m/s D. A remote control car traveling at a constant rate 5 m/h

A motorcycle being driven on a dirt path hits a rock. Its 60.-kilogram cyclist is projected over the handlebars at 20. meters per second into a haystack. If the cyclist is brought to rest in 0.

If the length of the simple pendulum is increased by 44% then what is the change in time period of pendulum

For which function is a heat engine most likely used? starting an air conditioner running a car igniting a furnace activating a thermostated?

A car traveling at 22 m/s comes to an abrupt halt in 0.1 second when it hits a tree. what is the deceleration of the car.

What is the hottest layer in the Sun's atmosphere?

Which do you need to calculate the speed of a wave? A. distance and frequency B. distance and time C. time and frequency

What is one of the benefits that scientists have discovered from organisms' daily exposure to radioisotopes? 1. being able to Carbon date fossils 2. X-ray Imaging capability 3. radiation treatment for cancer 4. invention of microwave cooking

Despite valid research, in the late 1900s, women and minorities were thought to have a higher level of intelligence than white males

Radio communications were severely Distributed last week And the local newspaper says that solar activity is to blame. Which type of solar activity could the newspaper be talking about?