Which of the following statements are correct about thunderstorms? a. thunderstorms can form in long lines called squall lines

b. lighting can jump between parts of the same cloud as well as between the cloud and the ground

c. thunderstorms are short lived (15-30 min) but may occur one after another under the right conditions

d. it’s usually safe to go outside during a thunderstorms even though they can be scary

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)