Answer:
the nails
Explanation:
The force of the nail pushing in the opposite direction. The correct option is option D among all the given options.
What is force?A force in physics is an effect that changes the velocity of a mass-moving object, causing it to accelerate from rest, for example. It is a vector quantity since it can be a push or even a pull and always has magnitude and direction.
The head of a hammer is often made of steel. This makes the head heavy, which helps create a strong force for driving nails. Steel is also strong. The head of a hammer must be strong to resist the force of the nail pushing in the opposite direction.
Therefore, the force of the nail pushing in the opposite direction. The correct option is option D.
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Your question is incomplete but most probably your full question was,
The head of a hammer is often made of steel. This makes the head heavy, which helps create a strong force for driving nails. Steel is also strong. The head of a hammer must be strong to resist what force?
A The force of the air resistance on the moving hammer
B The force of the person using the hammer
C The force of gravity pulling down on the hammer
D The force of the nail pushing in the opposite direction
A water-balloon launcher with a mass of 2.2 kg is suspended on a wire. It
fires a 0.85 kg balloon to the north at a velocity of 13.0 m/s. What is the
resulting velocity of the launcher if the net force on the launcher is equal to
the reaction force?
A. 5.0 m/s south
B. 33.6 m/s south
C. 5.5 m/s north
D. 6.3 m/s south
Answer:
5.0 m/s south.
Just did it.
Hope This Helps!
Answer:
5.0 m/s south
Explanation:
A bullet is fired at an angle of 45°. Neglecting air resistance, what is the direction of acceleration during the flight of the bullet?
a) upward
b) downward
c) dependent on the initial velocity
d) at a 45 angle
Answer:
b) downward. Correct choice
Explanation:
Projectile Motion
It's known as the type of motion that experiences an object that is projected near the Earth's surface and moves along a curved path exclusively under the action of gravity.
The gravity manifests through the acceleration of gravity g whose value is [tex]9.8 m/s^2[/tex] and points downward. The object will eventually fall to the ground at a time and speed which depends on the initial speed and launch angle.
When the bullet is fired regardless of the initial speed and angle, the only acceleration of the system is g, thus:
b) downward. Correct choice
The acceleration acts on the bullet will be the acceleration due to gravity that is g and has a downward direction.
What will be the direction of the acceleration of Bullet fired?Since the bullet is fired at an angle of 45 so the bullet will travel in a projectile. So every point in time the acceleration due to gravity will act on the bullet.
After some point in time, the bullet will come to the surface of the earth as the energy in the bullet will reduce.
As we know that anything present on the earth is under the influence of the earth's gravity.
So the fired bullet will experience acceleration due to the gravity of the earth and the direction of the acceleration will always be downwards.
So the bullet will eventually fall to the ground at a time and speed which depends on the initial speed and launch angle.
Thus the acceleration acts on the bullet will be the acceleration due to gravity that is g and has a downward direction.
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What unit is force always in?
Pounds
Kilograms
Meters
Newtons
The answer would be newtons.
If the force being applied to an object is doubled, what will happen to its
acceleration?
Answer:
Acceleration decreases.
Explanation:
Hope this helps you.
What collides and creates a movement of heat called conduction?
A. photons
B. compounds
C. Molecules
D. atoms
Answer:
c.
Explanation:
Molecules collide and create a movement of heat called conduction.
What is conduction?
Conduction is defined as a process as a means of which heat is transferred from the hotter end of the body to it's cooler end.Heat flows spontaneously from a body which is hot to a body which is cold.
In the process of conduction,heat flow is within the body and through itself.In solids the conduction of heat is due to the vibrations and collisions of molecules while in liquids and gases it is due to the random motion of the molecules ,
When conduction takes place, heat is usually transferred from one molecule to another as they are in direct contact with each other.There are 2 types of conduction:1) steady state conduction 2) transient conduction.According to the type of energy conduction is of three types:
1) heat conduction
2) electrical conduction
3)sound conduction
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Katrina’s recipe for orange muffins calls for 400 grams of flour. How many kilograms of flour are in the recipe?
Answer:
0.4 Kilograms of flour
Explanation:
If you convert 400 grams into kilograms (400 ÷ 1,000), you would get 0.4 kilograms.
An object launched at 65 degrees from the horizontal would have the same range
(distance travelled) as an object launched from? Write only the WHOLE number with
no units (example: 65)
Answer:
An object launched from 65° will have the same range as an object launched from 25°
Explanation:
The formula for the horizontal range, R, is given as follows;
[tex]R = \dfrac{v \times sin(2\cdot \theta)}{g}[/tex]
Therefore, given that sinθ increases from 0 to 1 for θ values from 0 to 90° and decreases from 1 to 0 for θ values from 90° to 180°, and that the values of sin(θ) are positive in the first and second quadrant, we have that for the given angle, θ = 65°, the range is therefore;
[tex]R = \dfrac{v \times sin(2\times 65 ^{\circ})}{g} = \dfrac{v \times sin(130 ^{\circ})}{g}[/tex]
The location of 130° = Second quadrant
A rotation of 130° in the counterclockwise is equivalent to a rotation of 50° in the clockwise direction
Therefore, we have sin(130°) = sin(50°)
Therefore, the range for 130°/2 = 65° is the same as the range for 50°/2 = 25° and an object launched from 65° will have the same range as an object launched from 25°.
10. A force of 24 N was required to accelerate an object at a rate of 4 m/s-. What was the object's mass?
11It look 2.3 seconds for a car's velocity to change from 20 m/s to 35 m/s. The mass of the car was 1370 kg. What force was required to cause the acceleration? (Hint: First calculate the acceleration.)
Answer:
?
Explanation:?
What is the displacement of a soccer player who moves from 20 yards to 65 yards down the field?
Answer:
All that is necessary is that car A has a greater speed (is moving faster). ... A fullback is running down the football field in a straight line. ... At 1 second, he is on the 10-yard line; at 2 seconds, he is on the 20-yard line; at 3 seconds, he is on ... Since average velocity is displacement over time, his average velocity is also 0 m/s.
Explanation:
Answer:
45 yards of displacement from the 20 yard point
Explanation:
take the 65 and subtract 20 from it and that will give you your displacement.
I need help ASAP this is due tomorrow at 8 AM its four questions and I don't understand none of them please help!!
1. Draw a series circuit with a 2-cell battery, 2 motors and an open switch.
2. Draw a parallel circuit with a 3-cell battery, 4 lamps and 1 closed switch that turns off all lamps.
3. Draw a circuit with a 3-cell battery, 2 motors (one motor on and one off).
4. Draw a circuit with a 2-cell battery, 2 lamps, 1 closed switch (wire it so if one lamp burns out, both lamps will not work).
Answer:
Is it a test
Explanation:
We act out our forbidden fantasies in our dreams.
a. True
b. False
List the 4 things technology can be.
Technology can be the four things listed below...
PhonesComputersTVsPlaystation or XboxAnswer:
mechanical
electronic
medical
industrail and manufacturing
why would hydras avoid reproducing asexually when condition are difficult?
Answer:
I'm soooooooo happy you asked the answer is yes
The Tacoma narrows bridge collapsed due to?
A. Refraction
B. Reflection
C. Diffraction
D. Resonance
Answer:
i think its resonance but if im wrong its my fault
Explanation:
When a gas increase in thermal energy it will go through...?
A. thermal contraction
B. thermal expansion
C. freeze
D. smell
Answer:
b
Explanation:
What does hydrosphere and cryosphere both have in common?
Answer:
cryosphere is all those areas of earth where the surface is frozen while hydrosphere is all waters of earth, as distinguished from the land and the gasses of the atmosphere
A car accelerates from 15 m/s to 25 m/s for 6 seconds. What is the car's displacement? (use: d=>(); + v) )
Answer:
hope this helps : )
Explanation:
brainliest plz
Which is a characteristic of atoms?
They come in ten major types.
They are the smallest units of matter.
They can be divided.
They cannot combine together.
Answer:
the answer is b
Explanation:
Samuel's car has a mass of 3,000 kg. If your car produces a force of 500 N, how fast will it accelerate?
Answer:
The answer is 0.17 m/s²Explanation:
The acceleration of an object given it's mass and the force acting on it can be found by using the formula
[tex] a = \frac{f}{m} \\ [/tex]
f is the force
m is the mass
From the question we have
[tex]a = \frac{500}{3000} = \frac{5}{30 } = \frac{1}{6} \\ = 0.166666...[/tex]
We have the final answer as
0.17 m/s²Hope this helps you
Someone help please.....
A person jogs 4.0 km in 32 minutes, then 2.0 km in 22 minutes, and finally 1.0 km in 16 minutes. What is the jogger's average speed in km per minute?
Answer:
0.0928km/min (4dp)
Explanation:
To find the jogger's speed in km per minute, we just need to divide the number of km jogged by the time in minutes it took to jog that distance. This will give us the distance they jogged every minute which is their speed.
4km in 32 minutes:
4/32 = 0.125km/min
2km in 22 minutes:
2/22 = 0.091 (3dp)km/min
1km in 16 minutes:
0.0625km/min
Now to find the average speed of these 3 speeds, we just add them all together and divide by how many values there are (3 values).
Average (mean) = [tex]\frac{0.125+0.091+0.0625}{3}[/tex]
Average = 0.2785/3
Average speed of jogger = 0.0928 (4dp) km/min
Hope this helped!
Put the steps in order to show how crystals are formed
Answer:
A) Formation of ions
B)Formation of ionic bonds
C)Formation of cubes
D)Formation of crystals
Hope this helps
Answer:
1 4 2 3
Explanation:
edge 2021
fill in the line to complete each statement
Joints in train tracks are designed with extra space to allow for _____
In hot weather
Answer:
expansion
Explanation:
all metals are conductors of heat and this heat can wear down the tracks as trains go by. this extra spacing allows the tracks to expand and contract so that the tracks do not wear down
What type of energy do you seen In a windmill
Answer:
mechanical energy is in a windmill
what is induced current
Answer:
tu sala chutiya hai madarchod haramiA wolf can reach speeds of (16.5 m/s) in just 2 seconds. What is the wolf's acceleration?
Answer:
8.25Explanation:
Speed = 16.5 m/s
Time = 2 seconds
Acceleration = Speed/time
[tex]Acceleration = \frac{16.5}{2} \\\\Acceleration =8.25[/tex]
Based on illustrations of magnetic field lines, where could an object be placed so it would not experience a magnetic force?
halfway between the like poles of two magnets, because the field lines bend away and do not enter this area
halfway between the opposite poles of two magnets, because the field lines are the closest together
above the middle of a bar magnet, because the magnetic field lines are only found around the sides of the magnet
above a pole of a bar magnet, because the magnetic field lines either go in or go out at the end
Answer:
(a) halfway between the like poles of two magnets, because the field lines bend away and do not enter this area
Explanation:
Got it correct on the test.
Answer:
(a) halfway between the like poles of two magnets, because the field lines bend away and do not enter this area
Explanation:
You travel 50 meters at an angle of 37° North of East.
a) Calculate the Horizontal component.
Answer:
a) x = 39.9 m
Explanation:
To find the components of a vector we can use trigonometric relationships. Since they indicate that the angle is 37º north of east, this angle is measured counterclockwise from the x-axis, therefore using trigonometry.
cos θ = x / d
sin θ = y / d
where the angle is 37º and the distance d = 50 m
x = d cos θ
y = d sim θ
let's calculate
x = 50 cos 37
y = 50 sin 37
x = 39.9 m
y = 30.1 m
Using our knowledge of physics... If we know that the moving man travels 10 meters, has an initial velocity of 0 m/s and an acceleration of 1 m/s, use the equation d = vi t + 1/2 a t^2 to solve for time.
Answer:
t= 4.5s
Explanation:
vi=0m/s
a= 1m/s
d=10m
10m= 0(t) + 1/2(1m/s)(t^2). 0xt cancels out, 1/2 of 1= .5
10m= .5m/s(t^2) Divide both sides by .5
20m= t^2. Take square root of each side
Square root of 20 is 4.472135954999579
sig figs, t= 4.5 s
A helicopter takes off from the ground and rises vertically. It then hovers at a constant height above the ground. Which sequence of energy changes takes place during the gain in height?
Answer:
First the fuel in the engine gives chemical energy during burning. That chemical energy then converts to kinetic energy if the rotor of blades of the helicopter. Then kinetic energy converts in gravitational potential energy as it gains height.
BMW has introduced a program of covered scheduled maintenance for its cars. That is, when you bring in your vehicle for maintenance at a BMW dealership, BMW will cover the costs of everything (except for worn-out tires). This practice specifically targets which stage of the product life cycle?
Answer:
Usage
Explanation:
A product life cycle refers to the duration from the introduction of the product into the market until it's taken off the shelves.
A program of covered scheduled maintenance for the cars refers to the practice in which the dealership will cover the costs of everything when you bring in your vehicle for maintenance.
In this question, the mentioned practice specifically targets the stage - Usage of the product life cycle