10.0 kg cannonball is thrown with a 7.5 m/s^2 acceleration. What is its force? *
Answer:
I think you mean what was the force applied on the cannonball, right? Well, that would be 75 N(newtons).
Explanation:
F = ma(force = mass x acceleration). Plus in the values it would be...
F = m(10.0 kg) x a(7.5 m/s^2), or 75 kg/s^2/75 N(newtons). Easy math.
If you slid down Splash Mountain you would eventually come to a big pool at the end. Which one of Newton's Laws is this?
Answer:
Gravity
Explanation:
Answer:
law of gravity
Explanation:
i think
In which direction does the electric field point at a position directly east of a
positive charge?
• A. West
• B. South
•C. North
• D. East
Anser- EAST AP-EX
Answer:
D. East That's my correct answerHeating one kg of water from 353K to 354K
Answer:
Explanation:
How much energy does it take to heat 1 kg of water?
The specific heat capacity of water is 4,200 Joules per kilogram per degree Celsius This means that it takes 4,200 J to raise the temperature of 1 kg of water by 1°C. Lead will warm up and cool down fastest because it doesn't take much energy to change its temperature.
in 2d kinematics what does “above horizontal” mean for angles i found from vectors?
Answer:
Explanation:
140m
Explanation:
The velocity must be broken down into x (horizontal) and y (vertical) components. We can use the y component to find how high the object gets. To find vertical velocity, vy, use vy=vosinθ.
vy=(75ms)sin45o=53ms
Next we find how long it takes to reach the top of its trajectory using vf=vo+at.
0ms=53ms+(−10ms2)t
t = 5.3s
Finally, find how high the object goes with d=vot+12at2.
d=(53ms)5.3s+12(−10ms2)(5.3s)2=140m
do you think they were used creatively?
(ahhhggg ignore i dont remember how to delete answers)
No. In my opinion, they were not used creatively. They were used speciously, disingenuously, and unimaginatively.
As always, others are free to disagree.
Why are electromagnets, rather than permanent magnets, used in MRLs?
Answer:
The main advantage of an electromagnet over a permanent magnet is that the magnetic field can be quickly changed by controlling the amount of electric current in the winding. However, unlike a permanent magnet that needs no power, an electromagnet requires a continuous supply of current to maintain the magnetic field.
Explanation:
How are motion and acceleration alike? How are they different?
Answer:
Motion is the action of moving, and acceleration is the action of moving faster or increasing speed. I guess you could say they are both in a state of motion or moving.
Explanation:
A tennis ball with a speed of 22.2 m/s is moving perpendicular to a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 14.9184 m/s. If the ball is in contact with the wall for 0.00965 s, what is the average acceleration of the ball while it is in contact with the wall? Take "toward the wall" to be the positive direction. Answer in units of m/s 2
Answer:
[tex]a=-3846.46\ m/s^2[/tex]
Explanation:
Given that,
Initial velocity of the ball, u = 22.2 m/s
Final velocity of the ball, v = -14.9184 m/s (minus sign shows opposite direction of motion)
Time for contact, t = 0.00965 s
We need to find the average acceleration of the ball when it is in contact with the ball. The acceleration of an object is equal change in velocity per unit time. So,
[tex]a=\dfrac{v-u}{t}\\\\a=\dfrac{-14.9184 -22.2 }{0.00965 }\\\\a=-3846.46\ m/s^2[/tex]
So, the acceleration of the ball is [tex]3846.46\ m/s^2[/tex] towards the opposite direction of motion.
If the car has a mass of 1000kg what is the cars weight
Answer:
2204.62 pounds
Explanation:
Which movement will require the greatest amount of work to be done?
A a force of 10N moving an object a distance of 3.0m
B a force of 10N moving an object a distance of 5.0m
C a force of 15N moving an object a distance of 3.0m
a force of 15N moving an object a distance of 5.0m
D
A
B
Ос
Answer:
it's d)a force of 15N moving an object a distance of 5.0m pls mark me brainlist.
What is the formula of gravity force with its meaning
Answer:
he formula for the gravitational force includes the gravitational constant, which has a value . The unit of the gravitational force is Newtons (N). Fg = gravitational force between two objects ( ) G = gravitational constant ( ) m1 = mass of the first object (kg)
Explanation:
brainlist ?
What is the difference between an object with a constant accleration and a constant velocity?
a. There is no difference between constant velocity and constant acceleration.
b. If an object has a constant velocity it will not have an acceleration- the velocity does not change. A constant acceleration means an objects velocity will increase or decrease by the same amount in each interval of time.
c. If an object has a constant acceleration it will not have a velocity. A constant velocitty means an object will increase or decrease displacement by the same amount in each interval of time
d. If an object has a constant acceleration on a velocity vs time graph the slope of the line will = zero.
To summarize, an object moving in uniform circular motion is moving around the perimeter of the circle with a constant speed. While the speed of the object is constant, its velocity is changing. Velocity, being a vector, has a constant magnitude but a changing direction.
can u figure it out from there but if anything i think it is C
To summarize, an object moving in uniform circular motion is moving around the perimeter of the circle with a constant speed. While the speed of the object is constant, its velocity is changing. Velocity, being a vector, has a constant magnitude but a changing direction.
can u figure it out from there but if anything i think it is C
What is parallel connection
Parents who make few demands on their children and use little punishment are what?
Answer:
Permissive - allowing or characterized by great or excessive freedom of behavior.
Explanation:
Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a great day!
how does the gravity of earth affect the moon?
(for science)
Answer:
The motion of the Moon is affected by the gravity of the Sun AND the Earth. The Moon's gravity pulls on the Earth and makes the tides rise and fall every day.
Explanation:
As the Moon passes over the ocean, there is a swell in the sea level. The Earth's gravitational force accelerates objects when they fall.
How does decreasing the distance between the two objects affect the gravitational force?
Answer:
Decreasing the distance between the two objects affect the gravitational force by strengthening it.
Explanation:
Gravity is stronger when the distance is shorter.
Density = Mass/Volume
If a ball has a mass of 25g and a Volume of 50ml, what is the Density of the ball?
Answer: 0.5
mass=50
volume=25
25/50=0.5
A wave has a frequency of 6 Hz, how long is the period?
A- 12
B- .17
C- 6
D- 36
Answer:
B- 0.17
Explanation:
F = 1/T
T = 1/F = 1/6 = 0.16666666 = 0.17
A place with a tropical climate would most likely be located (1 point)
a. near the equator
b. at high altitudes
c. near the poles
d. in the middle of a continent
I think its a
I hope its right if it is sub to me Bearonic
During a spring tide, what is arrangement of the moon, the sun and the earth?.
Explanation:
Spring tides generally occur twice a month—during new and full moons, when the Earth, Sun, and Moon line up in a row. In this arrangement, the gravities of the Sun and Moon work together and have the strongest pull on Earth. This produces the largest difference between high and low tide.
Spring Tides
During full moon or new moon phases, the gravitational forces of the Sun and Moon are maximized, producing very large ranges of tidal highs and lows called spring tides
If a star is found directly above the sun on the h-r diagram, what can you conclude about its size?.
Answer:
It is larger than the Sun.
Explanation:
Brainliest pls
:3
A magnetic field is created ____________.
a. when a compass is placed next to a wire.
b. when an electric current flows through a wire.
c. when wire is wrapped around an iron core.
d. when wire is twisted into a loop.
Answer: B
Explanation:
Magnetic fields are created due to charges in motion. Current by definition is the amount of charge flowing over time. Therefore, the answer is B, when an electric current flows through a wire.
Answer:
b. when an electric current flows through a wire
Explanation:
Hans Oersted discovered about two hundred years ago that when the electric current flowed through a wire a magnetic field was created.
(*) Sorry for my late answer but I hope this helps others that are looking for this.
I got 100% ;)
Ariana is heating a beaker of water. She notices that the water at the bottom
of the beaker is warmer than the water at the top. Which type of thermal
energy transfer will eventually make the temperature of the water at the top
and bottom the same?
O A. Translation
O B. Radiation
C. Conduction
O D. Convection
Answer: the answer is D (convection)
Answer:
D.Convection
Explanation:
You walk 45 m at an angle of 25 degrees S of E. Then you walk 30 m North. What is
the magnitude of the resultant vector?
Answer:
Explanation:
The formula for calculating the magnitude of the resultant vector is expressed as;
[tex]R = \sqrt{(\sum Fx)^2+(\sum Fy)^2}[/tex]
[tex]\sum Fx[/tex] is the sum of distances along the x component
[tex]\sum Fy[/tex] is the sum of distances along the y component
[tex]\sum Fx = 45 cos 25^0\\\sum Fx = 40.78m\\\\\sum Fy = -45 sin 25^0+30\\\sum Fx = 10.98m\\[/tex]
[tex]R = \sqrt{(40.78)^2+(10.98)^2}\\R = \sqrt{1663.0084+(120.61)}\\R = \sqrt{(1783.6184}\\R = 42.23m[/tex]
Hence the magnitude of the resultant vector is 42.23m
Answer:
NO
Explanation:
SOMEONE PLEASE HELPPP!
Answer:
The first and third one
Explanation:
The roughness of the surfaces is very important when determining friction as well as the force pressed on a surfaces as it helps increase friction.
HOPE IT HELPED
What is significant about the temperature 0 K
A. Matter no longer exists
B. Ice melts
C. Water freezes
D. Particles no longer move
Answer: I's either A. Matter no longer exists or D. Particles no longer move
Explanation:
Sorry if I get it wrong
Hope his helps :)
Answer:
d
Explanation:
Which refers to the thermal energy that flows from one substance to another when the substances differ in temperature?
heat
temperature
convection
flow
Answer:
Heat
Explanation:
Heat. The thermal energy that flows from one substance to another when the substances differ in temperature. Thermal equilibrium. The state in which no thermal energy transfer occurs because both substances are at the same temperature. Specific heat.
Heat is the thermal energy that flows from one substance to another when the substances differ in temperature.
What is meant by thermal energy ?Thermal energy is the term used to describe the energy present in a system that is responsible for setting its temperature.
Here,
The average kinetic energy of the particles in a material is measured by its temperature. The overall kinetic energy of the particles in a material is measured by thermal energy.
The temperature and thermal energy of a material increase with the particle velocity.
The amount of thermal energy that is transferred from one media or object to another, or from an energy source to a medium or object, is measured in terms of heat.
Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred.
The heat energy may be transformed into other types of energy, such as mechanical, kinetic energy, etc.
Hence,
Heat is the thermal energy that flows from one substance to another when the substances differ in temperature.
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what is the results of a loop of wire turning between two permanent magnets in a generator?
A. the permanent magnets have a current flowing through them.
B. the current in the loop of wire stops flowing.
C. the loop of wire has a current flowing through it
D. energy from the crank transforms into mechanical energy.
C. The loop of wire has a current flowing through it.
Answer:
c
Explanation:
a pex
Gregg Reid of Atlanta, Georgia, built a motorcycle that is over 4.5 m
long and has a mass of 235 kg. The force that holds Reid and his motor
cycle in a circular path with a radius 25.0 m is 1850 N. What is Reid’s
tangential speed? Assume Reid’s mass is 72 kg.
With Georgia's motorcycle at over 4.5 m long and having a mass of 235 kg, Reid’s tangential speed is mathematically given as
vt=12.4m/s
What is Reid’s tangential speed?Generally, the equation for the Conservation of momentum is mathematically given as
mn=m1+m2
Therefore
mn=235+72
mn=307
Therefore
Fc=mn*a
THerefore
[tex]vt=\sqrt{\frac{rFc}{mn}}\\\\vt=\sqrt{\frac{25*1850}{307}}[/tex]
vt=12.4m/s
In conclusion, The tangential speed is
vt=12.4m/s
Read more about Speed
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