Lv 1124 points

# krysdizzle_2006

• ### Galileo conducted experiments from the top of the Leaning Tower of Pisa.?

If he dropped a 2-lb. bag made of cloth and a 2-lb. rock, What would he have seen and why?

• ### Discribe the experiments results; identify wich of Newtons lawsis illustrated n ow these results saportthe law

1. place a 3x5 card on top of a glass

2. Put a coin on the center of the card

3. Flick the card horizontally with your finger

4. What happens to the coin?

• ### 23 - x = 12; 11?

determine whether the givin number is a solution of the equation. If the number is not a solution to the equation, then find the solution.

A) inertia

B) friction

C) weight

D) gravity

• ### Newton's first law of motion states that an object at rest will remain at rest unless a __ force acts on it.

A) balanced

B) gravity

C) Unbalanced

D) nuclear

A.) 15 m/s

B.) 25 m/s

C.) 7.5 m/s

D.) 8.5 m/s

A.) 81 g/cm3

B.) 30 g/cm3

C.) 3 g/cm3

D.) 1 g/cm3

A.) 45

B.) 4.5

C.) 0.45

D.) 0.045

• ### Assuming that there R no other nonconservative forces involved wut impulse was givin 2 each truck at collision

A.) Truck 1=

B.) Truck 2=

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:

Truck 1 approched the intersection from the top of a 22-meter hill.

Truck 2 was on a flat stretch of road directly in front of truck 1.

At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.

From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.

There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.

After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.

You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.

• ### Assuming that there R no other nonconservative forces involved wut impulse was givin 2 each truck at collision

A.) Truck 1=

B.) Truck 2=

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:

Truck 1 approched the intersection from the top of a 22-meter hill.

Truck 2 was on a flat stretch of road directly in front of truck 1.

At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.

From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.

There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.

After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.

You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.

• ### If truck 2 came to a stop in 15 seconds, how much power in watts did it take to stop it at the sign by braking

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:

Truck 1 approched the intersection from the top of a 22-meter hill.

Truck 2 was on a flat stretch of road directly in front of truck 1.

At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.

From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.

There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.

After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.

You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.

• ### How much work was done to bring Truck 2 to a stop?

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:

Truck 1 approched the intersection from the top of a 22-meter hill.

Truck 2 was on a flat stretch of road directly in front of truck 1.

At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.

From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.

There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.

After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.

You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.

• ### How much work was done to bring Truvk 2 to a stop?

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:

Truck 1 approched the intersection from the top of a 22-meter hill.

Truck 2 was on a flat stretch of road directly in front of truck 1.

At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.

From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.

There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.

After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.

You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.

• ### How much energy did truck 1 lose from the top to the bottom of the hill?

You are a traffic accident investigator. You have arrived at the scene of an accident. Two trucks of equal mass(3,000 kg each) were involved in a rear-end accident at a stop sign. here is what you know:

Truck 1 approched the intersection from the top of a 22-meter hill.

Truck 2 was on a flat stretch of road directly in front of truck 1.

At the bottom of the hill, before braking for the stop sign, Truck 1 was going 20 m/s and truck 2 was going 35 m/s.

From the skid marks on the road you can see that truck 1 applied force on its brakes for 2 seconds, 80 meters before the stop sign.

There were no skid marks left by truck 2. The collision occured at the stop sign, where truck 2 had stopped.

After the collision, both trucks were moving together in the same direction at 10 m/s, before slowly rolling to a stop.

You must now push truck 2 using 1,000 N of force, 8 meters off the side of the road so no one else gets hurt.