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A 5 kilogram object is thrown vertically upwards with an initial velocity of 25 metres per second from the top of a building 30 metres high. On the way down, the object just misses the edge of the building and strikes the ground. Use the law of conservation of energy to determine the

(a) maximum height above the ground reached by the object, and 

(b) object’s speed just before it strikes the ground. [g= 9.8m/s] 

What is STP in chemistry?

What is STP in chemistry?

What is K_a in chemistry?

What is metal?

What is K_a in chemistry?

What is Ka in chemistry?

define  the term reduction

What is chemistry?

Can you find a vector quantity that has a magnitude of zero but components are different from zero

An object moves along the x-axis with its position x given as a function of time t by: 

What is the object's velocity as a function of time?

An object is moving along the axis so that its distance from the origin at time t is given by:

x= 1/6t^4+13/6t^3-10t^2+t

(a) what is the velocity of the object at time t=6 seconds? 

(b) at what time is the acceleration of the object equal to 4m/s^2 ?

what is total percentage population of india and china.

Fill in the blanks.

What is the difference between log and ln?

What is the difference between and ?

What is the difference between and ?

What is the difference between and ?

What is the difference between and ?  

What is the difference between  and ? 

What is the difference between and ?

What is the difference between and ?

What is the difference between and ?

what is 5 x 5?

Who was the king of England before Elizabeth II?

 why mercury is most expensive thing in world

1. who was the first prime minister of India?

The most metal-rich terrestrial planet is

A. Mercury

B. Pluto

C. Mars

D. Earth

Earth is made mostly of metals and rocks. Where did this material come from?

On level ground, a cannon fired a cannon ball to a wall with anan initial velocity of 50.0m/s at 60° above the ground and feels no appreciable air resistance. (a) Find the horizontal and vertical component of the cannon ball's initial velocity. (b) calculate the time it takes for the ball to reach its highest point. (c) find  ots maximum height above the ground. (d) computethe horizontal maximum range. (e) without doing any calculations, find the horizontal and vertical components of its velocity and acceleration at the highest point.

Suppose you are carrying a ball and running at a constant speed on level ground. You wish to throw the ball and catch it as it comes back down. Neglecting air resistance should you,

1. Throw the ball at an angle of above the horizontal and maintain the same speed.
2. Throw the ball straight up in the air and slow down to catch it.
3. Throw the ball straight up in the air and maintain the same speed.

Suppose you're carrying a ball and running at a constant velocity on level ground. You wish to throw the ball and catch it as it comes back down. Neglecting air resistance, should you (a) throw the ball at an angle of about 45o above the horizontal and maintain the same speed, (b) throw the ball straight up in the air and slow down to catch it, or (c) throw the ball straight up in the air and maintain the same speed?

Suppose you are carrying a ball and running at a constant velocity on level ground. You wish to throw the ball and catch it as it comes back down. Neglecting air resistance, should you (a) throw the ball at an angle of about 45° above the horizontal and maintain the same speed, (b) throw the ball straight up in the air and slow down to catch it, or (c) throw the ball straight up in the air and maintain the same speed?

Suppose you are carrying a ball and running at constant velocity on level ground. You wish to throw the ball and catch it as it comes

back down. Neglecting air resistance, should you (a) throw the ball at an angle of about above the horizontal and maintain the same speed, 

(b) throw the ball straight up in the air and show down to catch it, or (c) throw the ball straight up in the air and maintain the same speed?

 Suppose you are carrying a ball and running at a constant speed, and wish to throw the ball and catch it as it comes back down. Neglecting air resistance, should you (a) throw the ball at an angle of about 45 degree above the horizontal and maintain the same speed, (b) throw the ball straight up in the air and slow down to catch it, or (c) throw the ball straight up in the air and maintain the same speed?

Suppose you are carrying a ball and running at constant speed, and wish to throw the ball and catch it back 
down. Should you (a) throw the ball at an angle of about 45º above the horizontal and maintain the same speed, 
(b) throw the ball straight up in the air and slow down to catch it, or (c) throw the ball straight up in the air and 
maintain the speed?

A man is flying the invisible jet at 900km/h [west] and then he applies the airbrakes slowing down at 50km/h/s. How long will it take for the jet to slow to a velocity of 100km/h/s

A. 2s

B. 4s

C. 8s

D. 16s

Secret agent pulls 3g turn on her snowboard. What is her acceleration? Choose closest answer.

A. 10m/s^2

B. 30m/s^2

C. 50m/s^2

D. 70m/s^2

What is the simple interest rate on a 1550 investment paying 1,126.38 interest in 16.9 years.

Why is the acceleration of a free fall sometimes greater or less than the standard 9.8m/s^2 [down] gravity acceleration?