A snowball flies through the air with a speed of 15 m/s. It spends 5 seconds
in the air before hitting the ground. Based on the information given can the
snowball have reached the enemy fort 50 meters away?
OA) Yes, it can have reached the fort.
OB) No, it will need a speed of 20 meters per second to reach the fort.
OC) No, it will need a speed of 25 meters per second to reach the fort.
OD No, it will need a speed of 50 meters per second to reach the fort.

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to. in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

What is the mass of the water that is being heated? it requires 2,500 joules to raise a certain amount of water (c = 4.186 jig c) from 20.0°c to 60.0°c. o 159 o 40 g o 63 g o 80 g

What is the magnitude of the gravitational force acting on the earth due to the sun?