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labwork [276]
3 years ago
11

A hunter is aiming horizontally at a monkey who is sitting in a tree. The monkey is so terrified when it sees the gun that it fa

lls off the tree. At that very instant, the hunter pulls the trigger. What will happen?
a) The bullet will miss the monkey because the monkey falls down while the bullet speeds straight forward.
b) The bullet will hit the monkey because both the monkey and the bullet are falling downward at the same rate due to gravity.
c) The bullet will miss the monkey because although both the monkey and the bullet are falling downward due to gravity, the monkey is falling faster.
d) It depends on how far the hunter is from the monkey.
Physics
1 answer:
Dvinal [7]3 years ago
3 0

Answer:a) The bullet will miss the monkey because the monkey falls down while the bullet speeds straight forward.

Explanation: The bullet keeps as it aim( the monkey) unless it is redirected by an external force that could redirect it. Hence, the bullet speeds straight forward.

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A negative test charge experiences a force to the right as a result of an electric field. Which is the best conclusion to draw
zaharov [31]

Answer:

The electric field points to the left because the force on a negative charge is opposite to the direction of the field.

Explanation:

In an electric field, a positive charge has tendency to move from high to low potential and hence experience the electric force in the direction of electric field since electric field lines are directed from high to low potential.

In an electric field, a negative charge has tendency to move from low to high potential and hence experience the electric force in the direction opposite to  electric field since electric field lines are directed from high to low potential.This phenomenon happened because The electric field from a positive charge will points away from the charge while the electric field from a negative charge will points toward the charge.

7 0
3 years ago
A newly discovered planet has the same mass as the Earth, but a person standing on the surface of the planet experiences a force
Dafna11 [192]

This question deals with the acceleration due to gravity on the surface of the planet. The value of the acceleration due to gravity on the surface of two planets, that is Earth and on the surface of another planet are compared to find out the relation between the radii of both planets, provided their masses are the same.

The correct option for the radius of the new planet is "Option 3: Square Root of 3 R"

The value of the acceleration due to gravity on the surface of a planet is given by the following formula:

g = \frac{GM}{R^2}----------- eqn(1)

where,

g = acceleration due to gravity on Earth

G = Universal Gravitational Constant

M = mass of the Earth

R = Radius of the Earth

Now, the same formula for the acceleration due to gravity on the surface of the other planet can be written as follows:

g' = \frac{GM'}{R'}\\\\------------- eqn(2)

where,

g' = acceleration due to gravity on the new planet

G = Universal Gravitational Constant

M' = mass of the new planet

R' = Radius of the new planet

According to the given condition, the new planet has the same mass as the Earth's mass but the acceleration due to gravity on the surface of the new planet is one-third of the acceleration due to gravity on the surface of Earth.

M'=M\\\\g'=\frac{1}{3}g

using eqn (1) and eqn (2):

\frac{GM}{R'^2}=\frac{1}{3}\frac{GM}{R^2}\\\\R'^2=3R^2\\\\R' = \sqrt{3}R

Hence, the radius of the new planet is found to be equal to the square root of 3 times the radius of the Earth (Square Root of 3 R).

Learn more about acceleration due to gravity on the surface of a planet here:

brainly.com/question/15575318?referrer=searchResults

brainly.com/question/19552330?referrer=searchResults

7 0
3 years ago
Which one of the following is an example of an acid-base reaction?
Lina20 [59]

Answer:

A. 2HCl + Mg(OH)2 + 2H2O + MgCl2

hope it helps

6 0
3 years ago
What does Newton’s law of universal gravitation say about the distance between objects?
satela [25.4K]

It says: The bigger the distance between objects the smaller the gravity between them.

3 0
4 years ago
In a research facility, a person lies on a horizontal platform which floats on a film of air. When the person's heart beats, it
anastassius [24]

Answer: 3.48g

Explanation:

here, we will be using conservation of momentum to solve the problem. i.e the total momentum remains unchanged, unless an external force acts on the system. We'll in thus question, there is no external force acting in the system.

Remember, momentum = mass * velocity, then

mass of blood * velocity of blood = combined mass of subject and pallet * velocity of subject and pallet

Velocity of blood = 56.5cm = 0.565m

mass of blood * 0.565 = 54kg * (0.000063/0.160)

mass of blood * 0.565 = 54 * 0.00039375

mass of blood * 0.565 = 0.001969

mass of blood = 0.00348kg

Thus, the mass of blood that leaves the heart is 3.48g

7 0
3 years ago
Read 2 more answers
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