Answer:
cant be calculated since there is no direction and magnitude needs direction
Explanation:
A 65 kg passenger in a car travels at a speed of 8.0 m/s. If the passenger is stopped by an airbag in 0.75 s, how much force is required?
F=ma,a,=v/t ,=65(8/0.75)=693.33
displacement is simply change in position. What is the largest displacement you have experienced in a singale day
Well that happens to me all the time.
Question 4 of 11
In which situation will an object always stay motionless?
O A. When the applied force is greater than the friction force
B. When the friction force equals the normal force
O c. When the normal force equals the applied force
O D. When the applied forces add up to zero
In situation 4 will an object always stay motionless. When the applied forces add up to zero.
What is force?Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
The moment in the body is only due to the applied force. An object in scenario 4 remains stationary at all times. When all of the applied forces total up to zero.
Hence option 4 is correct.
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Which of the following is a vector quantity?
Answer:
D
Explanation:
A vector quantity is an object with both magnitude and direction, like velocity.
:))
A target is 100m away from a gun and the nozzle speedbis 400m/s whatvanglebof projection will ensure a hit
Explanation:
400m=1s
100m=? Less
=100/400×1s
=1s/4
=0.25s
Material
Density (g/cm)
water
1.0
aluminum
2.7
iron
7.9
silver
10.5
gold
19.3
Use the chart above to find the identity of the unknown sample
Answer:Gold is metallic, with a yellow color when in a mass, but when excellently separated it may be black, ruby, or purple. Your density numbers have no units, so they are unusable.
If the numbers you give match to the densities of the given metal in g/ml or kg/L, it should be gold.
Density = mass/volume, so:
96.5g/5ml = 19.3 g/ml. So the answer is 19.3 gold.
Explanation:
If a small motor does 520 J of work for 10 seconds, how much power is exerted?
[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]
The power exerted by the small motor is ~
[tex]52 \: \: watt[/tex][tex] \large \boxed{ \mathfrak{Step\:\: By\:\:Step\:\:Explanation}}[/tex]
As we know, power is the rate at at which we perform a work, that is ~
power = workdone ÷ time takenLet's find the power exerted by motor if 520 J of work is done for 10 seconds ~
[tex]p = 520 \div 10[/tex][tex]p = 52 \: \: watt[/tex]If a small motor does 520 J of work for 10 seconds, the power exerted by it is 52 Watts.
What is power?
The quantity of energy moved or converted per unit of time is known as power in physics. The watt, or one joule per second, is the unit of power in the International System of Units.
Power is also referred to as activity in ancient writings. A scalar quantity is power.
Given that the small motor does work = 520 J
Time taken for the work = 10 seconds.
Hence, power of the small motor be = work done/time taken.
=520 j/10 second
= 52 Watt.
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A steel ball is at one end of a box that is moving forward as shown. The box suddenly stops. According to Newton's first law, what happens to the steel ball just after the box stops
According to Newton's first law, the steel ball will be reluctant to stop and want to continue in the motion. What will happen is that, the steel ball will either take a parabolic motion forward or move with a great speed to hit the front end of the box
According to Newton's first law, an object which is at rest will continue to remain at rest or in motion in a straight line will continue to move in a straight line except an external force act on it.
That means if a body is at rest, the body will be reluctant to start moving. And when a body is in a motion, it will be reluctant to stop. This is known as inertia
A steel ball that is at one end of a box that is moving forward is already experiencing motion in a straight line. If the box suddenly stops, According to Newton's first law, the steel ball will be reluctant to stop and want to continue in the motion. What will happen is that, the steel ball will either take a parabolic motion forward or move with a great speed to hit the front end of the box just after the box stops.
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could earth-like beings inhabit any other planets in our solar system? how? and why?
Your question says 'in our solar system.' It might or might not be possible. It actually depends on whether the temperature of the planet, the atmosphere, availability of water & food & the things found there suit the needs of the organisms. As of now, no planet in our solar system or in the universe support the inhabitants of earth-like beings. But who knows? It's not entirely impossible either. Scientists say there were remains of water found in Mars which might prove the existence of extraterrestrials. Still, it has not been proved.
_________
RainbowSalt2222 ☔
A soccer ball is kicked from ground level at a velocity of 40 m/s at an angle of 30o
above
the horizontal. Find:
a. Hang Time (total time the ball is in the air)
b. The ball’s maximum height
c. The ball’s Range
Answer:
b the balls maximum height
The seasons of the year result from Earth’s movement, or
, around the Sun.
Answer:
The answer is revolution
Explanation:
Please help.
Which has the greatest net force?
A 30-kg box falling from a window, with air resistance
A 2,000-kg car with a constant velocity of 35 m/s
A 30-kg box falling on the Moon
A 2-kg soccer ball accelerating at 22 m/s2
Seperate in a mass column and a weight column.
A: Balence
B: Measure of gravitational force
C:Amount of matter in an object
D: Constant on Earth
E: Remains the same when gravitational force changes
F: Changes when gravitational force changes
G: Never changes
H:Spring Scale
I: Expressed in newtons
J:On the moon, is 1/6 of that on Earth\
K: Measured in Kilograms
Answer:
the answer is B: measure of gravitational force
In the simulation, start with m1 = 200 kg and m, = 400 kg with their centers 8 meters apart. If you want to increase in the gravitational force between the two masses by the greatest amount, should you double the mass of m, or should you halve the distance sentences, explain which option would create the greater increase in the gravitational force and why. (2 points)
To double the gravitational force between the two blocks, double the mass of the blocks and keep the distance between constant.
The given parameters;
mass of the first block, m₁ = 200 kgmass of the second block, = 400 kgcenter mass of the blocks, r = 8 mThe gravitational force between the two mass is calculated by applying Newton's law of universal gravitation as follows;
[tex]F = \frac{Gm_1 m_2}{r^2}[/tex]
The magnitude of the gravitational force increases with increase in the mass of the blocks and decreases with increase in the distance between the blocks.
To double the gravitational force between the blocks, double the mass of the blocks;
[tex]F = \frac{G(2m_1)(2m_2)}{r^2} \\\\F = 2 \times \frac{Gm_1 m_2}{r^2}[/tex]
Thus, to double the gravitational force between the two blocks, double the mass of the blocks and keep the distance between constant.
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particles in a liquid______, move about, and ______
Answer: .
Explanation:
What are the two factors that affect the force of gravity?
Answer:
there u go if u feel answer is good plzz mark me brainlest
Explanation:
When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
Answer:
The factors that affect the force of gravity are :
i) Mass
ii) Acceleration
When does the air parcel stop losing energy?
Answer:
If there is no cloud (liquid water) in the parcel
Explanation:
Answer:
fjriykckangjcksktkykcjwjtjcsj
Suppose that the system were placed in an elevator that accelerates downward at 2 m/s2. What would the scale read?.
The reading on the scale when the system is placed on elevator accelerating downward is 7.8m (N).
The given parameter
downward acceleration, a = 2 m/s²The reading on the scale is determined by applying Newton's second law of motion;
R = mg - ma
R = m(g - a)
R = m(9.8 - 2)
R = 7.8 m. (N)
where;
m is the mass of the systemThus, the reading on the scale when the system is placed on elevator accelerating downward is 7.8m (N).
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. What is the kinetic energy of a 10 kg car that is moving 4 m/s?
Answer:
80 joule
Explanation:
The formula of kinetic energy is 1/2 mv2.
when partners representing multiple jurisdictions and agencies
Answer:
When partners representing multiple jurisdictions or agencies work together to establish the incident objectives, Unified Command is being used.
Explanation:
PLEASE ANSWER NEED HELP!!!!!!!! PLEASE THE CORRECT ANSWER!!!!!!
Many fitness apps have features that allow you to share results on social media. Are there benefits to this kind of sharing?
A.
No, workouts are about achieving your personal best.
B.
No, people often compare themselves to others on social media.
C.
Yes, sharing provides accountability, making exercise more likely to stick.
D.
Yes, all aspects of daily life should be shared on social media when possible.
PLEASE NO LINKS
Answer:
I think the correct answer is A
Why does a sealed bag of chips expand when you take it to a higher altitude?
Answer:
As the atmospheric pressure decreases with increase in altitude, when a sealed bag of chips is taken to higher altitude then the pressure of the gases inside the bag become greater than the outer atmospheric pressure and apply pressure on the side covering of the chips bag due to which the chips bag expand.
Look at the Grand Canyon cross section above. What was happening to the Grand Canyon area during the Permian Age?
options:
Water was rising and lowering, going from beach, to deep sea, back to a beach, then to shallow seas.
Volcanic Activity
The water was a constant shallow sea during that time.
Tectonic activity- lots of faulting and tilting.
Explanation:
constantly shallow sea tho not exactly sure
describe how humans interact with the earths spheres
Answer:
Humans can have major impacts on all the spheres.
Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere. However, people everywhere are working to change things.
Explanation:
Which gas is least likely to obey the ideal gas laws at very high pressures and very low temperatures?
Answer:
Xe
Explanation:
At low temperatures or high pressures, real gases deviate significantly from ideal gas behavior. It is also good to know that ideal gas law assumes that the gas molecules have negligible/no size.
Keeping that in mind, Xe is the largest of the bunch, and therefore is expected to have the greatest deviation of the ideal gas when under high pressure or low temperature.
Hope this helped
Determine the energy conversion for the following:
a. Light bulb
b. Firework
c.flute
d. Leaf
Answer:
the answer is b.
because it will use energy and maybe its letter A.plsss pa brainliest po ako
and also youre welcomeAnswer:
a. Light bulb - electrical to light
b. Firework - chemical to light / thermal / sound
c. Flute - kinetic to sound
d. Leaf- solar to chemical
guys are our body made out of 70 percet water?
Answer:
I'm pretty Sure. Yea look.
Explanation:
Up to 60% of the human adult body is water. According to H.H. Mitchell, Journal of Biological Chemistry 158, the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
It measures only small earthquakes.
It collects data using a seismograph.
It shows only the strength of seismic waves that were produced.
It determines the amount of damage caused by an earthquake.
Answer:
It measures only small earthquakes.
It collects data using a seismograph.
Explanation:
hope this helps
Answer: b. It uses data collected by a seismograph.
Explanation:
In the apparatus shown above, one end of a string of length L is attached to a block of mass M and the other end is connected to the axle of a motor that rotates, causing the block to move in a circle of radius R at a constant speed vT such that the string makes an angle θ with the vertical. A student wants to use the apparatus to make measurements and create a graph that can be used to estimate the acceleration g due to gravity at the surface of Earth. The student can adjust the motor to achieve different tangential speeds of the block
Newton's second law allows finding the result for the type of graph to find the gravity acceleration is:
The student must make a graph of the tangential velocity versus the tangent of the angle and of the slope to find the value of gravity.g = [tex]\frac{slope}{\sqrt{L} }[/tex]
Oscillatory motion is a simple harmonic motion where the restoring force is proportional to the displacement.
Newton's second law gives a relationship between the net force, the mass and the acceleration of a body, in the attached we can see a free body diagram of the system, let's apply Newton's second law.
[tex]t_y - W =0 \\T_x = m a[/tex]
Since the movement is circular, the acceleration is centripetal.
[tex]a = \frac{v^2}{r}[/tex]
Let's substitute.
[tex]t_x = m \frac{v^2}{r}[/tex]
Let's use trigonometry to find the radius of the circle and the stress component.
sin θ = [tex]\frac{r}{L}[/tex]
r = L sin θ
sin θ = [tex]\frac{T_x}{T}[/tex]
cos θ = [tex]\frac{T_y}{T}[/tex]
Tₓ = T sin θ
[tex]T_y[/tex] = T cos θ
Let's substitute.
T sin θ = [tex]\frac{m v^2 }{L sin \theta }[/tex]
T sin² θ = [tex]\frac{m}{L} \ v^2[/tex]
From the other equation.
[tex]T_y= W \\T cos \theta = m g[/tex]
Let's write our system of equations.
T sin² θ = [tex]\frac{m}{L} \ v^2[/tex]
T cos θ = m g
We solve the system by squaring the second equation and dividing.
tan² θ = [tex]\frac{1}{g^2 L } \ v^2[/tex]
L g² tan² θ = v²
v = g [tex]\sqrt{L}[/tex] tan θ
Consequently, if the student makes a graph of the velocity versus the tangent of the angle, he obtains a straight line and the slope is:
slope = g [tex]\sqrt{L}[/tex]
From this expression you can calculate the acceleration of gravity.
[tex]g= \frac{slope}{\sqrt{L} }[/tex]
In conclusion using Newton's second law we can find the result for the type of graph to find the gravity acceleration is:
The student must make a graph of the tangential velocity versus the tangent of the angle and of the slope to find the value of gravity.[tex]g = \frac{slope}{\sqrt{L} }[/tex]
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the toy crain uses an electromagnet to pick up and move the blocks explain how this electromagnet is able to pick up and move the block ?
Answer:
Answer:
toy crane pick up the blocks when the current through the wire is passed then it acts as a Electromagnet and width of the block and when the current through the wire is not passing then it left the blocks
