A police officer on a mountain bike is cruising at a speed of 3.50m/s, when he sees a wanted
criminal, standing on a corner, 75m ahead of him. If the police officer accelerates at a rate of
2.00m/s^2, how much time will he take to reach the corner?
Answers
Answer:
7 seconds
Explanation:
please see paper!
vf² = vo²+2ad
vf=vo+at
vf²=3.5²+2.2.75
vf²=312.25
vf=17.67 m/s
vf=vo+at
17.67 = 3.5 +2t
t=7.085 s
Related Questions
help.
Help help help help
Answers
Answer:
B. 1.750 x 10^3
Explanation:
1/2 * 35 * 10^2
Greyhounds are among the fastest dogs on earth. On average, what is the fastest speed they can run?.
Answers
How long was a 50 W lightbulb left on for if 500,002 J were burned?
Answers
" 50 W " means " 50 Watts " or " 50 Joules per second ".
(500,002 J) / (50 J/sec) = 10,000.04 seconds
(That's 2 hours 46 minutes 40.04 seconds.)
A basketball player uses a bat to hit a 0.145- kilogram stationary baseball with a force of 18,436 Newton's. What is the force, in Newton's, on the player's bat?
A. 2,673 newtons
B. 9,218 newtons
C. 18, 436 newtons
D. 36, 872 newtons
Answers
Answer: C
Explanation:
Newton's Third Law of motion states that any action causes an equal and opposite reaction. This is the fundamental requirement for the conservation of classical momentum.
The force, in Newton's, on the player's bat is 18, 436 newtons. The correct option is C.
What is force?The word "force" has a specific meaning in science. At this level, calling a force a push or a pull is entirely appropriate. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. There are both living things and non-living objects in the concept of a force.
Although modest, the gravitational force has a relatively wide field of effect. Maturity is always appealing. Since mass is its source, it operates between any two particles of matter in the universe.
Every action results in a corresponding and opposing response, according to Newton's Third Law of Motion. The basic prerequisite for the conservation of classical momentum is this.
Therefore, the correct option is C. 18, 436 newtons.
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A 0. 5 kg arrow was shot at a target. The arrow accelerated at 200 m/s2. What was
the net force on the arrow to the nearest newton?
Answers
Answer:
100 newtons
Explanation:
F= ma
Calculate the potential difference required across a conductor of resistance 5 ohm to pass a current of
1.5 A through it .
Answers
Answer:
7.5 volts
Explanation:
V= IR
V= 1.5×5
V= 7.5 volts
HELP!!!
Why is it important for governments
to invest in new technologies to
provide energy??
Answers
energy security and affordability, the potential for job creation, future economic strategic positioning, and addressing environmental and other externalities.
How long does it take an airplane, accelerating from rest at 5.00 m/s2, to travel 360 m?
Answers
-list out our knowns and unknowns:
Vi=0m/s
a=5.00m/s^2
d=360m
Vf=?
t=?
-first, let’s solve for Vf. We will avoid using a formula that contains t, as we do not know that value yet. Let’s use this one:
vf^2 = vi^2 + 2ad
-Plug in your values:
vf^2 = (0^2) + 2 (5.00) (360)
vf^2 = 3600
vf = 60m/s
-solve for t. choose a formula. Here’s a good one to use:
d= (vi+vf/2)t
-plug in your values:
360=(0+60/2)t
360=30t
360/30=t
t=12 seconds
19 yds is the same as how many meters
Answers
Coulomb’s law is stated mathematically as
F
=
k
q
1
q
2
r
2
where F represents electrical force, k is the electrostatic constant, q represents strength of an electrical charge and r represents the distance between the centers of the charges.
• Explain the relationship between force and strength of electrical charge and the relationship between force and distance, based on this equation.
• Determine how doubling the strength of both charges at the same time affects the force between them.
Answers
Relationship between force and strength of electrical charge directly proportional whereas the relationship between force and distance is inversely proportional
Relationship between force, charges and distanceThe relationship between force and strength of electrical charge directly proportional to each other which means if one increases the other will automatically increases whereas the relationship between force and distance is inversely proportional which means that if one increases the other will decrease.
Doubling the strength of both charges at the same time affects the force between them because both charges are directly proportional to its force so we can conclude that relationship between force and strength of electrical charge directly proportional whereas the relationship between force and distance is inversely proportional.
Learn more about gravity here: https://brainly.com/question/557206
Think of an animal that has a distinctive or unusual body shapes. Describe how its body shape helps its momentum and how momentum affects its survival.
Answers
penguins! so momentum is based on mass and velocity, the advantages is that they have stored mass in the form of like fats to keep them warm however they are built to slide basically so that there is less friction when they travel so sideways their bullet like shape helps increase velocity so they have both mass and considerable velocity!
If a scrapped car has a mass of 1,500 kg, what is the mass of the materials that can be recovered using a magnet?
Answers
The mass of the materials that can be recovered using a magnet is 1500 kg.
Law of conservation of matter
The law of conservation of matter states that matter can neither be created nor destroyed but can be converted from one form to another.
Based on this law of conservation of mass or matter, the mass of the scrapped car will remain constant and can neither change nor destroyed.
mass of scrapped car = mass of car recovered
Thus, the mass of the materials that can be recovered using a magnet is 1500 kg.
Learn more about law of conservation of matter here: https://brainly.com/question/24783543
If a 3 kg block rests on a rough horizontal table and experienced a 2 N force of static friction then what is the coefficient of static friction between the block and the table
Answers
The coefficient of static friction of the block is 0.068.
What is static friction?This is the force between two bodies in contact and tends to oppose their motion. It is also the force that keeps two bodies at rest
To calculate the coefficient of static friction, we use the formula below.
Formula:
F = mgμ............. Equation 1Where:
F = Horizontal forcem = mass of the blockg = acceleration due to gravityμ = coefficient of static friction.Make μ the subject of the equation
μ = F/mg.............. Equation 2From the question,
Given:
m = 3 kgg = 9.8 m/s²F = 2 NSubstitute these values into equation 2
μ = 2/(3×9.8)μ = 2/29.4μ = 0.068.Hence, The coefficient of static friction of the block is 0.068.
Learn more about static friction here: https://brainly.com/question/13680415
HEYY! Please help!
Turn this Algebraic expression into a Verbal expression!
2(3j+5+8j)
Thank you! <33
Answers
Answer:
22J+10
Explanation:
that is it in verbal expression
You've got a flat tire. To lift your car, you make a homemade lever (see the figure (Figure 1)). A very light 1.6-m-long handle part is pushed down on the right side of the fulcrum and a 0.050-m-long part on the left side supports the back of the car.
How hard must you push down on the handle so that the lever exerts an 6900- N force to lift the back of the car?
Answers
How hard you must push down on the handle is by applying a force of 215.63 N
Moment of a forceThe moment of a force about a point is the turning effect of the force about that point.
The moment of a force M = Fd where
F = force and d = perpendicular distance of force from pivot point.Now, for you to lift up the car, the moment due to your force about the fulcrum, M equals the moment due to the force on back of car. M'
M = M'
FD = F'd where
F = Force applied, D = distance of force from fulcrum = 1.6 m, F' = force applied on back of car = 6900 N and d = distance of force on back of car from fulcrum = 0.050 mMaking F subject of the formula,we have
F = F'd/D
Substituting the values of the variables into the equation,we have
F = F'd/D
F = 6900 N × 0.050 m/1.6 m
F = 345 Nm/1.6 m
F = 215.625 N
F ≅ 215.63 N
So, how hard you must push down on the handle is by applying a force of 215.63 N
Learn more about moment of a force here:
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A convex, or converging, lens with a focal length of 34 cm is used to observe an image of an apple than is 80 cm away from the lens. At what distance from the lens does the image form and what type of image is it?.
Answers
The image distance is 59.2 cm and the image is real and small.
Image distanceThe distance of the image formed by the convex or converging lens is determined by applying the following lens equation.
1/f = 1/u + 1/v
where;
f is the focal length = 34 cmu is the object distance = 80 cmv is the image distance = ?1/v = 1/f - 1/u
1/v = 1/34 - 1/80
1/v = 0.0294 - 0.0125
1/v = 0.0169
v = 1/0.0169
v = 59.2 cm
Thus, the image distance is 59.2 cm and the image is real and small.
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How does the interference of sound waves make sounds louder of softer?
Answers
Answer:
Explanation:
Lower pitch Normal pitch Sound Interference If you walk through a room with stereo speakers at each end, the sound might seem louder in some places and softer in others. The waves from each speaker interact with one another. Interference occurs when waves that overlap combine, forming a new wave.
Science | Heat
Analyze the given examples, then, write C if it is convection and NC if it is not.
I'd appreciate the help :))!
Answers
The examples of heat transfer by convection are the air being heated in a hot-air balloon, Sea breeze and land, Air conditioner and Hot airflow in summer.
What is heat transfer by convection?
Heat transfer by convection is the heat flow from one place to another due to the movement of fluid.
Examples of heat transfer by convection include the followings;
The air being heated in a hot-air balloon: the heated hot air rises while cold surrounding air which is high dense falls beneath the hot air.Sea breeze and land: the cold sea breeze replacing hot air from the land during day or the land breeze cooling the sea at night.Air conditioner: the cold air replacing the hot airHot airflow in summer: the movement of the cold towards the pole and the displacement of the hot air.Learn more about heat transfer by convection here: https://brainly.com/question/12072129
A 23.3 kg crate is pushed with a force of 944 N for 36.0 seconds, moving the crate a distance of 12.4 m. How much power was used
Answers
Explanation:
[tex]p = \frac{f \times s}{t} [/tex]
power = Force × distance /time
power = 944N × 12.4m/36secs
power = (944×12.4/36)Nms—¹
power = 390.2Nms—¹ or 390.2Watts or 390.2Js—¹
A 17,250 kg rocket is pushed with a thrust of 7236904 N. What is the acceleration of the rocket?.
Answers
The acceleration of the rocket of mass 17250 kg when pushed with a thrust of 7236904 N is 409.73 m/s².
What is acceleration?Acceleration can be defined as the rate of change of velocity
To calculate the acceleration of the rocket, we use the formula below, And this formula is obtained from newton's second law of motion.
Formula:
ma = T-mg.............. Equation 1Where:
m = mass of the rocketa = acceleration of the rocketT = Thrust on the rocketg = acceleration due to gravity of the rocket.Make a the subject of the equation
a = (T-mg)/m............. Equation 2From the question,
Given:
T = 7236904 Nm = 17250 kgg = 9.8 m/s²Substitute these values into equation 2
a = [7236904-(17250×9.8)]/17250a = (7236904-169050)/17250a = 7067854/17250a = 409.73 m/s²Hence, The acceleration of the rocket is 409.73 m/s².
Learn more about acceleration here: https://brainly.com/question/19365526
what is the effect of altitude on atmospheric pressure
Answers
Answer:
Pressure decreases with increasing altitude.
Explanation:
The atmospheric pressure is maximum on the surface of the earth. When we go to high altitude then the atmospheric pressure decreases .At high altitude the atmospheric pressure becomes much less than our blood pressure.
pleaseeee help me please t
Answers
Answer:
The current will remain unchanged:
If the switches are open then 18 Ω is in parallel with 18 Ω
This gives an equivalent resistance of 9 Ω for the circuit
R = R1 R2 / (R1 + R2) = (18 * 18)/ 36 = 9 Ω
Now suppose that switches are closed, then
each parallel combination of 6 Ω is in series with the other two
One combination = (6 * 6) / (6 + 6) = 3 Ω
There will be 3 of these parallel combinations in series providing a total resistance of 9 Ω which is the same as before so i is unchanged
help pls pls pls pls pls
Answers
The weight in any case is the mass times the acceleration due to gravity.
So;
[tex]Weight = 65.0kg * 1.62m/s^2=105.3N[/tex]
Hope that helps!
A plane makes a complete circle with a radius of
3622 m in 2.10 min. What is the speed of the plane?
Answers
Answer:
10
Explanation:
The average speed of sound in ocean water is 1510 m/s. If a sound travels
with a wavelength of 20 m, what is its frequency?*
0. 01 Hz
75. 5 Hz
30. 2 MHz
30,200 Hz
Answers
Answer:
75. 5 Hz
Explanation:
velocity = frequency × wave length
1510 = frequency × 20
frequency = 1510÷20 = 75.5 Hz
can you mark my answer brainliest please ♥️...
Which type of energy is stored in chemical compounds and released in chemical reactions?
potential
kinetic
chemical
electrical
Answers
Answer:
Potential, tell me if that's wrong, and sorry if its wrong.
Explanation:
What happens to the speed of a sound wave as it passes from the air into the ground?
Answers
Answer:
SEE BELOW
Explanation:
Sound travels faster in warmer air, so the sound waves are refracted upward, away from the ground. Various atmospheric conditions can cause a temperature inversion, with air temperature increasing with height. This causes some of the sound energy from a source near the ground to be refracted back toward the ground.
What do all scientific areas of study have in common?
Answers
Answer:
They examine theories in a systematic manner.
Explanation:
2.70 ft is the same as how many cm
Answers
Answer:
82.296cm
Explanation:
2.7 * 30.48cm/1ft= 82.296cm
please help me on answer
Answers
Answer:
The slope is 0.5
Explanation:
It increases so it is positive and it increases by half a block each time so 0.5.
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