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velikii [3]
3 years ago
13

A cannon fires a ball vertically upward from the Earth’s surface. Which one of the following statements concerning the net force

acting on the ball at the top of its trajectory is correct?a) The net force on the ball is instantaneously equal to zero newtons at the top of the flight path.b) The direction of the net force on the ball changes from upward to downward.c) The net force on the ball is less than the weight, but greater than zero newtons.d) The net force on the ball is greater than the weight of the ball.e) The net force on the ball is equal to the weight of the ball.
Engineering
1 answer:
trasher [3.6K]3 years ago
8 0

Answer:

a) The net force on the ball is instantaneously equal to zero newtons at the top of the flight path.

Explanation:

At an instantenous time at the top of the flight path, the upward force due to the Canon explosion on the ball is just equal to the weight of the ball, this will equate the net force on the ball to zero. At this point the velocity of the ball is zero before it decends down to earth under its own weight.

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section 10.1 describes a man in the middle attack on the diffie-hellman key exhange protocal in which the adversary generates tw
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Answer:

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A three-point bending test is performed on a glass specimen having a rectangular cross section of height d = 5.4 mm (0.21 in.) a
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Please see attachment

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3 years ago
If the price of the car is less than or equal to your available cash, display "no". If the price of the car is more than your av
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Answer:

function decision(car_price, available_cash) {

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Explanation:

using functions in Javascript:

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e.g function function_name() {

console.log("How are you?");

}

you can call or invoke this function by using its name followed by parenthesis, like this: function_name(). each time the function is called it will   print out "How are you?".

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function decision(car_price, available_cash) {

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