
When you drop a rock into a well, you hear the splash 2.0 s later.(a)If the distance to the water in the well were doubled, would the time required to hear the splash be greater than, less than, or equal to 4.0 s ?(b)How far down was the water originally?
you drop a 2.0 kilogram rock off of 70m high Bridge.
It comes to a stop after making a dent of 1.5 cm in the ground.
What is the magnitude of the net force on the rock
while it is slowing to a stop?
2. ou drop a 1.6 K4 rock off ot a Tom hich brdae.t lt comes to t is the mcgnihude s hor aftr matin a dant d 1.5cn in the ground. whet is the meqnitudle of...
You drop a rock into a deep well and 4.6 s later hear the splash. How far down is the water? Neglect the travel time of the sound. Express your answer using two significant figures.
When you drop a rock into a well, you hear the splash 2.0 seconds later. How deep is the well? If the depth of the well were doubled, would the time required to hear the splash be greater than, less than, or equal to 4.0 seconds? Please explain why
4. (20 pts) Standing next to a deep water well you drop a rock and wait to hear the splash. You hear the splash t seconds after you release it. (o) (8 pts) Give an expression/equation from which you can solve the depth of the well, i? (the speed of from which you can solve the d sound is v,) Your answer must be given in terms of t,g, and v, (b) (12 pts) Solve this equation AND reduce it...
A rock is dropped off the side of a bridge and hits the water below 3.3 s later. (a) What was the rock's velocity when it hit the water? speed direction? (b) What was the rock's average velocity as it fell? speed direction? (c) What is the height of the bridge above the water?
A rock is dropped off the side of a bridge and hits the water below 2.5 s later. (a) What was the rock's velocity when it hit the water? speed direction (b) What was the rock's average velocity as it fell? speed direction (c) What is the height of the bridge above the water?
A soccer player kicks a rock horizontally off a 33 m high cliff into a pool of water. If the player hears the sound of the splash 2.80 s later, what was the initial speed given to the rock (in m/s)? Assume the speed of sound in air is 343 m/s. What If? If the temperature near the cliff suddenly falls to 0°C, reducing the speed of sound to 331 m/s, what would the initial speed of the rock have...
2 points QUESTION 7 A rock with a mass of 12.8 g is dropped off the edge of a bridge that is 975 cm above a river. Ignoring air resistance, what is the final velocity of the rock just before in hits the water? a 157.9 m/s ob 13.82 m/s c. 138.2 m/s d. 15.79 m/s
Consider a rock thrown off a bridge of height 79.8 m at an angle theta = 25 degree with respect to the horizontal as shown in Figure P4.20. The initial speed of the rock is 10.5 m/s. Find the following quantities: the maximum height reached by the rock the time it takes the rock to reach its maximum height the time at which the rock lands how far horizontally from the bridge the rock lands the velocity of the rock...