A stealth bomber is flying straight and level at a constant speed of 150 m/s at an altitude of 3500 m above the ground. It drops a bomb intended to hit a specific target on the ground. a) How long will it take for the bomb to hit the ground?

b) At what horizontal distance away from its target must the bomber release the bomb in order to strike its target?

disregard air resistance

Answers

Answer 1

Answer: $Height = (1)/(2) gt^2 \n \n 3500 = (1)/(2) (9.8)(t^2)\n \n3500 = 4.9t^2\n\nt^2 =714.285714286\n\n\boxed {t=26.73~seconds}$

$\sf Horizontal ~distance = velocity * time\n\n Horizontal distance =150 * 26.73 \n\nHorizontal ~distance =4009.5$

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Joseph lifted a parcel from the floor. If he lifts the same parcel twice as high, then it will have ____________. A) Half the weight B) The same weight C) Twice the weight D) A weight of zero

Answers

Answer: B

Explanation: He lifts the same thing just double the height

PLEASE HELP!!!!!!!!!! Because the boy is slowing down, his velocity decreases over time. Use the final and starting velocities in the data table to calculate his average acceleration. Use the equation , where t is time, ux is initial velocity, vx is final velocity, and ax is acceleration. Use time t = 1.6 seconds, which is calculated using values from the table (1.8 − 0.2).

Answers

Answer:

The answer should be 0.825

Explanation:

I took like 20 mins to figure this out lol

A substance has a melting point of 0 degrees celsius and a boiling point of 100 degrees celsius. The substance is most likelya. water
b. hydrogen
c. gold
d. table salt

Answers

water. These physical properties are specific to water.

A tennis ball is released from a height of 4.0 m above the floor. After its third bounce off the floor, it reaches a height of 183 cm. What percentage of its mechanical energy does it lose with each bounce?23%

27%

20%

15%

Answers

Answer:

The percentage of its mechanical energy does the ball lose with each bounce is 23 %

Explanation:

Given data,

The tennis ball is released from the height, h = 4 m

After the third bounce it reaches height, h' = 183 cm

= 1.83 m

The total mechanical energy of the ball is equal to its maximum P.E

E = mgh

= 4 mg

At height h', the P.E becomes

E' = mgh'

= 1.83 mg

The percentage of change in energy the ball retains to its original energy,

$\Delta E\%=(1.83mg)/(4mg)*100\%$

ΔE % = 45 %

The ball retains only the 45% of its original energy after 3 bounces.

Therefore, the energy retains in each bounce is

∛ (0.45) = 0.77

The ball retains only the 77% of its original energy.

The energy lost to the floor is,

E = 100 - 77

= 23 %

Hence, the percentage of its mechanical energy does the ball lose with each bounce is 23 %

Answer: 23

Explanation: gradpoint

A snail travels at a rate of 2.37 feet per minute. a. Write a rule to describe the function. b. How far will the snail travel in 6 minutes?

Answers

a.
distance = rate*time
d = 2.37t

b.
d = 2.37*6 = 14.22 ft

Answer:

Explanation:

What does temperature measure?a. the amount of disorder in a substance
b. the average kinetic energy of molecules
c. the average potential energy of molecules
d. the direction of the moving molecules in a substance

Answers

temperature is somewhat the heat result by the kinetic energy of an object when its whether emit some heat or being produced by a friction with another object. So the answer is (B.) the average kinetic energy of molecule, in a matter or object

Final answer:

Temperature measures the average kinetic energy of molecules in a substance.

Explanation:

The correct answer is b. the average kinetic energy of molecules.

Temperature measures the average kinetic energy of molecules in a substance. When the temperature of a substance increases, the molecules move faster and have more kinetic energy. This is why substances generally expand when heated and contract when cooled.

For example, when you heat water, the temperature increases, and the water molecules move faster, eventually reaching a boiling point where they have enough kinetic energy to break the bonds and escape as steam.

Learn more about temperature measurement here:

brainly.com/question/32217380

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