1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Stels [109]
3 years ago
13

A plane is flying east when it drops some supplies to a designated target below. The supplies land after falling for 10 seconds.

How high above the ground was the airplane when the supplies were dropped? (Hint: d = 1/2gt2; g = -9.8 m/s2)
Question 3 options:

120 meters


490 meters


980 meters


49 meters
Physics
1 answer:
Dahasolnce [82]3 years ago
3 0

The answer is B) 490.

Just fill in the formula

You might be interested in
A player kicks a football into the air. It slows to a stop at its highest point in the air before falling to the ground. Which s
vivado [14]

Answer:

The ball slows down in the air due to an unbalanced force

Explanation:

When player kicks the ball, there are mainly two foces acting on this object: the force made by the player and the opposite force of gravity (which acts with a direction always to the centre of the Earth)

The force applied by the player will be decreasing, while the force of gravity is always constant, this will make that both forces will unbalance, making the football´s speed slow down

8 0
4 years ago
Read 2 more answers
The product of the synthesis reaction between sodium and chlorine gas is ?
ankoles [38]
The product is sodium chloride. In its clean, pulverized form, that's common table salt.
6 0
3 years ago
Dòng điện dịch là:
yarga [219]

Answer: the answer is a

Explanation:

8 0
3 years ago
A sports car and a minivan run out of gas and are pushed to the side of the road. Which is easier to push, and why?
astraxan [27]

Answer:

The correct option is;

The sports car, because it has less mass and therefore less inertia

Explanation:

Newton's first law of motion states that an object will continue in its state of rest or uniform motion in a straight line unless acted on by a force. The property exhibited by the object is known as inertia

Newton's second law states that force is directly proportional to the rate of change of momentum produced

The rate of change of momentum of an object is directly proportional to the resultant force applied and is in the direction of the resultant force. The resultant force is equal to the rate of change of momentum.

Therefore, we have;

F = m·dv/dt = m×a

Given that the force required to move an object is directly proportional to its mass therefore, the inertia or the object resistance that requires a force to bring change is directly proportional to the mass of the object.

The mass of a sports car being considered lesser than the mass of the minivan will require less force to push and therefore has less inertia.

7 0
3 years ago
An astronaut floating alone in outer space throws a baseball. If the ball moves away at 20 m/s, the astronaut will:.
vitfil [10]

Answer:

Move the opposite direction ( at a lesser magnitude of velocity)

Explanation:

7 0
2 years ago
Other questions:
  • a car has an initial velocity of 15m/s. How far does it travel in the first 10 seconds with a decelaration of 1m/s?
    10·1 answer
  • Matthew has a mass of 90kg. and is trying to increase his weight by doing plenty of exercise riding to build his muscles. He rid
    7·1 answer
  • A) How much does an 85g apple weight on the surface of the Earth? (gEarth = 9.8 m/s2)
    12·1 answer
  • If an object is placed at a distance of 10 cm in front of a concave mirror of focal length 4 cm, find the position and character
    11·1 answer
  • true or false: If you perceive a leaf as green, then the leaf is absorbing all the frequencies of visible light except for that
    7·2 answers
  • My school doesn’t really teach help
    14·1 answer
  • Astronauts are testing the gravity on a new planet. A rock is dropped between two photogates that are 0.5 meters apart. The firs
    13·1 answer
  • Which choice is a potential drawback of nanotechnology? Check all that apply.
    12·2 answers
  • Help!!!!!!!!!!!!!!!!​
    10·1 answer
  • Use the diagram of the pulley system to complete the statement.In this pulley system, the pulleys will _____ the mechanical forc
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!