Answer:
Pressure = 24000 N/m²
Explanation:
Given the following data;
Force = 120N
Area = 0.5cm² to meters = 0.5/100 = 0.005 m²
To find the pressure;
Pressure= force/area
Pressure= 120/0.005
Pressure = 24000 N/m²
Therefore, the pressure on the archer's fingers is 24000 Newton per meters square.
The pressure on the archer's finger will be [tex]P=240 \ \frac{N}{cm^2}[/tex]
What will be the pressure?Pressure is defined as the normal force applied to the particular area. The formula is given as
[tex]P= \dfrac{F}{A}[/tex]
Here
F= Force applied
A= Area at which the force is applied
Now it is given that
F= 120 N
A= 0.5 [tex]cm^2[/tex]
Now by putting the values in the formula we get
[tex]P=\dfrac{120}{0.5} =240\ \frac{N}{cm^2}[/tex]
Thus the pressure on the archer's finger will be [tex]P=240 \ \frac{N}{cm^2}[/tex]
To know more about Pressure follow
https://brainly.com/question/991185
Question 2
What measurements are needed to calculate your BMI?
A. Weight and shoe size
B. Height and weight
C. heart and breathing rate per minute
D. core temperature and height
Answer:
B
Explanation:
M= 1000 g g= 10 m/s2 h= 10 K.E at GROUND = 400 j M.E = ....... ........J the answer is 400 so plz explain how
Answer:
M = 500 J
Explanation:
Given that,
Mass, M = 1000 g = 1 kg
Height, h = 10 m
Potential energy is given by :
P = mgh
P = 1×10×10
P = 100 J
The kinetic energy at ground = 400 J
Mechanical energy = sum of kinetic and potential energy
So,
M = 100 + 400
M = 500 J
So, the mechanical energy of the system is 500 J.
When a hot object makes a cold object warmer what is it called
If the pelican was traveling 8.79 m/s but was only 2.7 m above the water, how far would the fish travel horizontally before hitting the water below?
Answer:
6.52m
Explanation:
The horizontal distance travelled is known as its range. This is expressed as;
Range = u* √2H/g
u is the speed of the pelican
H is the maximum height
g is the acceleration due to gravity
Range = 8.79*√2(2.7)/9.8
Range = 8.79 * √5.4/9.8
range = 8.79*√0.5510
Range = 8.79*0.7423
Range = 6.52
Hence the fish will travel 6.52m before hitting the water below
Which statements describe how heat flows in foil? Check all that apply.
Answer:
Heat flows from a warmer object to a cooler object.formula of average speed
Answer:
Hey mate....
Explanation:
This is ur answer.....
Hope it helps!
Mark me brainliest....
FOLLOW ME!!! :)
You flip a coin straight up if the coin reaches a high point of 0.25 m above where you released it what was the initial speed?
Answer: 2.21 m/s
Explanation:
Given
Coin reaches a height of 0.25 m above the launch point
Suppose u is the initial speed of the coin
Using the equation of motion
[tex]\Rightarrow v^2-u^2=2as\\[/tex]
Putting values
[tex]\Rightarrow 0^2-u^2=2\times g\times s=2\times (-9.8)\times 0.25\\\Rightarrow u^2=4.9\\\Rightarrow u=2.21\ m/s[/tex]
Thus, the initial velocity is 2.21 m/s
what is specific heat capacity?
Specific heat capacity is defined as the amount of heat required to raise the temperature of 1 kilogram of a substance by 1 kelvin (SI unit of specific heat capacity J kg−1 K−1). From: Basic Physics and Measurement in Anaesthesia (Fourth Edition), 1995.
I NEED HELP ASAP!!!
The product of the component of a force along the direction of displacement and the magnitude of the displacement are known as:
a.
net force
c.
velocity
b.
work
d.
power
Answer:
a
Explanation:
thats yes according to kinematics
What is the kinetic energy of a 25 kg object moving at a velocity of 4 m/s?
Thus Kinetic energy of the object is 200J when mass is 25 kg and velocity is 4 m/s.
When you blow across the top of
a soda bottle, it acts like a closed
pipe. If it creates a fundamental
frequency of 680 Hz, how deep
is the bottle?
(Speed of sound = 343 m/s)
(Unit = m)
Please need help!!!!
Answer:
the new foundation would beExplanation:
ok
A car traveled a distance of 30 km in 20 minutes (1/3 hours). What was the
speed of the car?
O A. 90 km/hr
O B. 60 km/hr
O c. 30 km/hr
O D. 10 km/hr
How do you find component velocities of parallel vectors?
Answer:
Velocity is a vector (it has magnitude and direction), so the overall velocity of an object can be found with vector addition of the x and y components: v2 = vx2 + vy2. The units to express the horizontal and vertical distances are meters (m).
Regina is making observations of waves from different sources. She wants to classify the waves as either mechanical or electromagnetic. Which question will BEST help Regina to classify the waves?
A.
Can the wave transfer matter?
B.
Can the wave transfer energy?
C.
Can the wave travel through a vacuum?
D.
Can the wave travel through a liquid?
Answer:
A. Can the wave transfer matter?
Explanation:
EMW is made by vibrations of the charged particles and they work on a mechanical waveform. The energy is transferred through a vacuum and thus they need a medium to pass the energy. Thus in order to transport the energy from one place to another, such as a sound wave. Hence first she should have knowledge about the chemical and physical properties of the waves such as can they transfer matter.Two dogs are pulling on a chew toy. One dog pulls the chew toy with 64 N [E] and
the other pulls the chew toy with 31 N [W]. Determine the ACCELERATION of the 3
kg chew toy.
Answer:
Eastward, at 11 m/s^2
Explanation:
64N-31N=unbalanced force of 33N
F=ma
33N=(3kg)a
a=11m/s^2 to the East
A force of 100N stretches an elastic string to a total length of 20cm. if an additional force of 100N stretches the spring 5 cm further, find the natural length of the spring if the elastic limit is not exceeded. Pls help ASAP
Answer:
8cm
Explanation:
The general formula to find this is F/X where in this case the f is the total of the two forces (100+100) and x is the sum of the length ( 20+5) which together comes 200&25respectively then divide 200 with 25 which comes 8cm.
objects through which light can pass are referred to as dash objects
Answer:
Those objects are called transparent objects...
Explanation:
If only some light can pass through them ,it is called translucent....
If no light can pass through them ,it is called opaque.
Answer:
hii good morning
hey i am not good player but i wanted to give a triel to play duo in ff
If C is the vector sum of A and B, C = A + B, What must be true if C = A + B?. What must be true if C = 0?.
An egg sinks in fresh water but floats on concentrated salt solution
the salt solution exerts a greater up thrust on the egg which balances the weight of the egg, so the egg floats in a strong salt solution but sinks in fresh water
What is the acceleration of a 24 kg mass pushed by an 8 N force?
Answer:
0.25 m/s squared
Explanation:
Mass of the body (m)= 24kg
Applied force on the body(F)= 6N
Acceleration of the body (a)= ?
Solution
F = ma
a = F/m
a = 6N/24kg
a = 0.25m/s^2
Answer: The acceleration of the body is 0.25m/s^2
I hope this helps
Answer:
[tex]\boxed {\boxed {\sf a=\frac {1}{3} \ m/s^2}}[/tex]
Explanation:
Force is the product of mass and acceleration.
[tex]F=ma[/tex]
The mass is 24 kilograms and the force is 8 Newtons. Let's convert the Newtons to make the problem easier.
1 Newton is equal to 1 kilogram meter per square second. The force of 8 N equals 8 kg*m/s²Substitute the known values into the formula.
[tex]8 \ kg*m/s^2= (24 \ kg )*a[/tex]
Since we are solving for a, we must isolate the variable. It is being multiplied and the inverse of multiplication is division. Divide both sides by 24 kilograms.
[tex]\frac {8 \ kg*m/s^2}{24 \ kg}= \frac{(24 \ kg )*a}{24 \ kg}[/tex]
The kilograms will cancel, hence our earlier unit conversion.
[tex]\frac {8 \ m/s^2}{24 }= a[/tex]
[tex]\frac {1}{3} \ m/s^2=a[/tex]
The acceleration is 1/3 meter per square second.
Which would increase the speed of a sound wave?
Answer:
I would say temperature
3. Determine the units of the quantity described by the following com-
binations of units:
a. kg (m/s) (1/s)
b. (kg/s) (m/s2)
c. (kg/s) (m/s)
d. (kg/s) (m/s)
What are the mechanical advantage and mechanical efficiency of a lever that requires an input force of 40 N and lifts and lifts a boulder that weighs 80 N?
Answer:
2 , 200%
Explanation:
Mechanical advantage of a machine is defined as how much the machine multiplies the applied force.
It is given that :
Input force of the lever = 40 N
The weight of the boulder or the output force = 80 N
Therefore, the mechanical advantage = output force / input force
[tex]$=\frac{80}{40}$[/tex]
= 2
Mechanical efficiency is obtained by the dividing the output by the input and multiplying it with 100.
i.e. Efficiency = output / input x 100
[tex]$=\frac{80}{40}\times 100$[/tex]
= 200 %
DO NOW: You are picking up a pendulum (Clay ball on a string) as you pull the pendulum up on one side and let it fall, what types of energy are being used?
Answer:
The energy used in the pendulum is the initial Potential (Mechanical) Energy, P.E. given to the Clay ball attached to the inclined and extended string by virtue of its elevated position in relation to the rest position (lower state)
The swinging of the pendulum is brought about by the dynamic equilibrium between the initial potential energy, P.E. and the Kinetic Energy, K.E., of the pendulum when it is in motion
The (total) Mechanical Energy, M.E. of the ideal pendulum is constant at all times during the motion of the pendulum and it is given by the following formula;
M.E. = P.E. + K.E.
At the top of the swing, P.E. is maximum and K.E. is zero
Similarly, at the mid (lowest) point in the swing, instantaneously, P.E. is zero and K.E. is maximum
Explanation:
Water uptake to the atmosphere occurs through the processes of evaporation and transpiration from plants where it condenses to form clouds. Clouds release the water through precipitation. During a summer of extreme drought, what can we expect to happen to the surface groundwater stored in ponds and lakes?
a. Water levels will increase because there is more precipitation
b. Animals won't drink as much to save water, so water levels remain the same
c. Water levels will increase because there are more evaporation and transpiration
d. Water levels will decrease because there are more evaporation and transpiration
water level will decrease because there are more evaporation and transpiration
One of the solid reactants was treated in a coffee grinder before adding to
the reaction container. *
O
A. Concentration
B. Temperature
C. Surface Area
D. Catalyst
E. Agitation
Answer:
C. Surface area
Explanation:
The rate of chemical reaction depends on various factors such as:
concentration and pressurenature of reactantstemperaturesurface areapresence of catalyst, etc.Effect of surface area of reactants: the rate of a chemical reaction can be increased by increasing the the area of contact of the reacting substances. This is especially important when one or more of the reactants are solids., because only the particles of the solid that are exposed are able to take part in the reaction at each instant of time. Therefore, the greater the surface area of the solid reactant particles the faster the reaction.
The surface area of solid reactants can be increased by grinding or pelletizing, thus allowing for a greater contact between the reacting particles,
The instance in which one of the solid reactants was treated in a coffee grinder before adding to the reaction container is one way of increasing the surface area of a reactant.
A force of 1000 N is exerted on a golf ball for 0.005 s. The change in momentum of the golf ball is - a 200,000 kg m//s b 50 kg m//s c 5,000 kg m//s d 5 kg m//s
Answer:
d) 5 Ns
Explanation:
Impulse = Ft = 1,000(0.005) = 5
Why are temperatures of the currents generally colder at the poles than the equator?
A. Tilt of the Earth on its axis
B. Angle of the sun's rays are less direct
C. Angle of the sun's rays are more direct
D. The Earth's revolution around the sun.
Answer:
the answer is A
Explanation:
does anybody have social media and could help me with my homework ? i will send you pictures of my work please all of my work is due tomorrow!! i need help
2. How does laser light differ from
normal light?
Answer:
Laser light differs from normal light because laser lights are monochromatic which means it only shines one color and only that color :3
Explanation:
:3