Answer: what is the person’s distance
What are the 4 states of matter
There are four natural states of matter: Solids, liquids, gases and plasma.
Answer:
There are 4 states of matter. Solid, liquid, gas, and plasma.
Explanation:
Plasma isn't that important, the main ones are solid, liquid, and gas.
Water is a powerful solvent because it is a polar molecule true or false
Answer:
True
Explanation:
A girl tries to jump over a 0.825 m
wide creek by jumping at 3.87 m/s
at a 18.8° angle. What is her
height when she reaches the
other side of the creek?
water come out more slowly from an upstairs tap from a similar downstairs
Answer:
As we know that liquid pressure is depend upon the depth of liquid where the downstair tap has more depth so water come out with more pressure wheres the upstairs tap has less depth so water come out with low pressure so
A ball with a mass of 0.5 kg is hit with a force of 2.5 N what is its acceleration?
Explanation:
50 m/s may squared siya sa dun sa may s
At a circus, a human cannonball is shot from a cannon at 15m/s at an angle of 40° above horizontal. She
leaves the cannon 2m off the ground and lands in a net 1m off the ground. What height does she reach?
How much ground distance does she cover?
Answer:
a
The height is [tex]H = 6.74 \ m [/tex]
b
The horizontal distance is [tex]D = 23.74 \ m [/tex]
Explanation:
From the question we are told that
The speed is [tex]v = 15 \ m/s[/tex]
The angle is [tex]\theta = 40^o[/tex]
The height of the cannon from the ground is h = 2 m
The distance of the net from the ground is k = 1 m
Generally the maximum height she reaches is mathematically represented as
[tex]H = \frac{v^2 sin^2 \theta }{2 * g } + h[/tex]
=> [tex]H = \frac{(15)^2 [sin (40)]^2 }{2 * 9.8} + 2[/tex]
=> [tex]H = 6.74 \ m [/tex]
Generally from kinematic equation
[tex]s = ut + \frac{1}{2} at^2[/tex]
Here s is the displacement which is mathematically represented as
s = [-(h-k)]
=> s = -(2-1)
=> s = -1 m
There reason why s = -1 m is because upward motion canceled the downward motion remaining only the distance of the net from the ground which was covered during the first half but not covered during the second half
a = -g = -9.8
[tex]u = v sin (\theta)[/tex]
So
[tex]-1 = (vsin 40 )t + \frac{1}{2} * (-9.8) t^2[/tex]
=> [tex]-4.9t^2 + 9.6418t + 1 = 0[/tex]
using quadratic formula to solve the equation we have
[tex]t = 2.07 \ s[/tex]
Generally distance covered along the horizontal is
[tex]D = v cos (40) * 2.07[/tex]
=> [tex]D = 15 cos (40) * 2.07[/tex]
=> [tex]D = 23.74 \ m [/tex]
does light maicroscope require electric relay?
It needs something to light the light.
A ferry is crossing a river. The ferry is
headed due north with a speed of 2.6 m/s
relative to the water and the river’s velocity
is 4.4 m/s to the east.
a) What is magnitude of the boat’s velocity relative to Earth?
Answer in units of m/s
b) Find the direction in which the ferry is
moving (measured from due east, with counterclockwise positive).
Answer in units of ◦
.
Answer:
a. 5.1 m/s b. 149.42°
Explanation:
a. Velocity of boat relative to earth, V = velocity of boat relative to river, V'+ velocity of river relative to earth, v.
We add these vectorially.
Since velocity of boat relative to river is 2.6 m/s due north and velocity of river relative to earth is 4.4 m/s due east, we apply Pythagoras' theorem and add them together since both velocities are perpendicular to each other.
So, V² = V'² + v² = (2.6 m/s)² + (4.4 m/s)² = 6.76 (m/s)² + 19.36 (m/s)² = 26.12 (m/s)²
V = √[26.12 (m/s)²]
V = 5.1 m/s
b. Since the relative velocities of the ferry relative to the water and the velocity of the river relative to the earth are the components of the velocity of the ferry relative to the earth, the y - component being the velocity of the ferry relative to the earth since it is due north, and the x- component being the velocity of the river relative to the earth since it is due east. So, we have that
tanФ = y - component/x - component = V'/v where Ф is the angle between V and the west direction.
tanФ = V'/v
tanФ = 2.6 m/s ÷ 4.4 m/s
tanФ = 0.5909
Ф = tan⁻¹(0.5909)
Ф = 30.58°
So, the angle measured from due east with counterclockwise direction positive is 180° - Ф = 180° - 30.58° = 149.42°
HURRY PLEASEE
Whenever an object exerts a force on another object, the second object exerts a force of the same magnitude, but in the_______
of the first object
direction to that of the first object
A) opposite
B) same
C) right angle
D) vertical
Answer:
A)Opposite direction
Explanation:
hope this helps ;)
3. You have a ton of homework to do over the weekend because you were sick during the week. You plan on spending lots of time on Saturday working on your English paper and Science project. On Thursday your best friend calls and invites you to go bowling and to dinner on Saturday. What should you do and Why?
Answer:
No you should not go
Explanation:
Because if you go you will be more behind and then you’ll get so stressed from the work that you didn’t do and then it will just keep on stacking up and get more and more stressed and also another reason is because you should do the responsible choice and stay home and work on your project so you would be telling your friend that you can not go Because you got work to do and maybe you could schedule it for the next weekend and have your fun next week and you should always do the responsible choice.
RETAKE - A push or a pull that causes an object to change its motion is called!
:: inertia
:: a force
:: momentum
:: gravitational field force strength
:: mass
Answer: Force
Explanation: Force is defined as a push or pull acting on an object
Answer:
Force is defined as a push or pull acting on an object. Forces include gravity, friction, and applied force. Force causes changes in the speed or direction of motion. These changes are called acceleration.
Explanation:
An evacuated long tube contains a coin and a feather. If both objects fall together starting from the top of the tube, it is expected that: If this experiment is repeated at a place 2000 kilometers above the sea-level, the acceleration due to gravity gexp is expected to :
Answer:
gexp = 3.65 m/s²
Explanation:
The value of acceleration due to gravity changes with the altitude. The following formula gives the value of acceleration due to gravity at some altitude from the sea level:
gexp = g(1 - 2h/Re)
where,
gexp = expected value of g at altitude = ?
g = acceleration due to gravity at sea level = 9.8 m/s²
h = altitude = 2000 km = 2 x 10⁶ m
Re = Radius of Earth = 6.37 x 10⁶ m
Therefore,
gexp = (9.8 m/s²)(1 - 2*2 x 10⁶ m/6.37 x 10⁶ m)
gexp = 3.65 m/s²
Rolling a drum is work against friction why
can someone please write this analysis of the force magnitudes calculated in problems 1 and 2 for me?
Answer:
Explanation:
i didnt got what you had said about qn 1 and 2
qn 10 :pic given
qn 11;F = m * a
The apple's acceleration is not influenced by the acceleration due to gravity for this question. In real life it most certainly is influenced by gravity.
F = m * a
F = 10 Newtons.
a = 6 m/s^2
m = 10/6 = 1.66 kg.
Answer the following questions in the essay box below.Did the different sized suspended balloons balance?if they did not, which balloon tipped the scale down?Did your results validate the hypothesis above?Give an explanation for your results, including a discussion of how the data collected either validated, or disproved the hypothesis.
Answer:
what is it about
Explanation:
Answer:
Note: These answers are based off of sense and educational quessing, as I cannot do the experiment.
Question 1:
The balloons did not balance.
Question 2:
The bigger balloon tipped the scale down.
Question 3:
Yes, it validated that gas does has mass, as the bigger balloon weighed down the scale.
Question 4:
N/A
Which of the following is not a physical property ? A . The ability of a substance to dissolve in water. B . The ability of a substance to react with oxygen C . The ability of a substance to change directly into gas? D . The ability of a substance to melt at a specific temperature .
Answer:
b because to react with something makes it a chemical reaction
Explanation:
Please answer correctly.
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Urgent!!!!
Answer:
Gamma rays are mostly used in the radiotherapy/ radiooncology to treat cancer. They can also be used to spot tumours. Gamma rays can kill living cells and damage malignant tumor
Your car burns gasoline as you drive up a mountain road. What energy transformation is taking place?
Answer:
the chemical energy of the gasoline is converted into kinetic energy of the car.
Explanation:
Gasoline contains several chemicals like lubricants, anti-rust agents and anti-icing agents which are added to improve the performance of a car. The energy change taking place during the burning of gasoline is chemical energy to thermal energy.
What is gasoline?Gasoline is a pale brown or pink liquid which is made from the processed crude oil. It evaporates easily and is highly flammable and form explosive mixtures in air. It is a mixture of many hydrogen and carbon containing chemicals which are hydrocarbons.
A typical gasoline mixture contains about 150 different hydrocarbons, including butane, pentane, isopentane and the BTEX compounds like benzene, ethylbenzene, toluene and xylenes.
When a gasoline burns the chemical energy is converted into thermal energy and then this thermal energy is converted into mechanical energy. Gasoline burns and produce heat and this heat is converted into mechanical energy to move the car.
To know more about gasoline, visit;
https://brainly.com/question/13402652
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A baseball traveling at a velocity of 35 m/s has a mass of
0.15 kg. What is the kinetic energy of the baseball?
Answer:
35 m/s = v KE= 1/2 m x v^2. 89= m x 1224
89 J = KE 89 = 1/2 (m) x (35)^2. m = 0.15 kg.
2. A girl throws a marshmallow that lands in her friend's mouth 2 m away. The girl threw the marshmalow
at an angle of 30 degrees. How hard did she throw the marshmallow?
Answer:
The speed at which she threw the marshmallow is approximately 4.76 m/s
Explanation:
The given in formation are;
The range in which the marshmallow was thrown = 2 m (The location of her friend)
The angle at which the marshmallow was thrown = 30 degrees
The horizontal range is given by the following formula;
[tex]R = \dfrac{u^2 \times sin(2\cdot \theta)}{g}[/tex]
Where;
R = The range = 3 m
u = The initial velocity
θ = The angle at which the marshmallow was thrown = 30°
g = The acceleration due to gravity = 9.81 m/s²
By substitution, we have;
[tex]2 = \dfrac{u^2 \times sin(2\times 30)}{9.81} = \dfrac{u^2 \times sin(60)}{9.81}[/tex]
[tex]\therefore u^2 = \dfrac{ 2 \times 9.81}{sin(60)} = \dfrac{u^2 \times sin(60)}{9.81} \approx 22.66[/tex]
u ≈ √(22.66) ≈ 4.76 m/s
u ≈ 4.76 m/s
The speed at which she threw the marshmallow ≈ 4.76 m/s.
Answer:
4.76 m/s
Explanation:
What is 18 m/s north an example of?
Answer:
It is an example of velocity
Explanation:
It is an example of velocity Don't ask how I know because I do know it I just don't know how to explain it.
An airplane traveled 300 km northeast in 2.5 hours. Find the velocity of the plane.
Answer: 120 km per hour.
Explanation: 300/2.5 = 120.
I need some help, anything will help, I just need a better understanding of this
Answer:
12 meters
Explanation:
to find this we look at the 8 on the horizontal line this is 8 seconds, you then look upwards to see the height at that point in time
1. Surface temperatures on the planet Mars range from –89 °C to –31 °C. Express this temperature range in Kelvin.
2. The average surface temperature on Jupiter is about 165K. Express this temperature in degrees Celsius.
3. The average surface temperature on Saturn is 134K. Express this temperature in degrees Celsius.
4. The average surface temperature on the dwarf planet Pluto is 50K. Express this temperature in degrees Celsius.
5. The Sun has several regions. The apparent surface that we can see from a distance is called the photosphere. Temperatures of the photosphere range from 5,000 °C to 8,000 °C. Express this temperature range in Kelvin.
What item has the most thermal energy?
A. 10 Kg room-temperature water
B. 10 Kg ice
C. 10 Kg cold water
D. 5 Kg ice
I give brainiest if right :)
Answer:
a
Explanation:
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A car accelerates from rest to 27 m/s in 8 seconds. What is the acceleration of the car?
Answer:
The answer is 3.38 m/s²Explanation:
The acceleration of an object given it's velocity and time taken can be found by using the formula
[tex]a = \frac{v}{t} \\ [/tex]
where
a is the acceleration
v is the velocity
t is the time
From the question
v = 27 m/s
t = 8 s
We have
[tex]a = \frac{27}{8} \\ = 3.375[/tex]
We have the final answer as
3.38 m/s²Hope this helps you
Question 8 of 16
A school bus takes 30 minutes to reach the school from your house. If the average velocity of the bus is 6 m/s to the east, what is the bus's displacement?
(6.3 points)
A. 180 m
B. 180 m east
C. 1.08 x 10^4 m
D. 1.08 x 10^4 m east
Answer:
b
Explanation:
im pretty sure its b
Which sample of water has the most thermal energy?
O A. A 0.5 kg sample at 1°C
O B. A 1.5 kg sample at 10°C
O C. A 1 kg sample at 10°C
O D. A1 kg sample at 4°C
Answer:b
Explanation:
what is the definition of observation.
Answer:
Observation: The action or process of observing something or someone carefully or in order to gain information.
Explanation:
Can I have a Brainllest please :)
Answer:
Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the perception and recording of data via the use of scientific instruments. The term may also refer to any data collected during the scientific activity.
Explanation:
I just googled this. hope it helps!
how can being physically fit help you emotionally
