Answer:
-4000 m/s²
Explanation:
Given:
Δx = 0.200 m
v₀ = 40.0 m/s
v = 0 m/s
Find: a
v² = v₀² + 2aΔx
(0 m/s)² = (40.0 m/s)² + 2a (0.200 m)
a = -4000 m/s²
A ball thrown at 4 meters/second exerts 200 Newtons of force. The mass of the ball is:
Answer:
50
Explanation:
200 divided by 4 gives you the mass of 50
Q#1 A car is observed traveling 133 m in 4.5 seconds. (Show work)
A) What is its Velocity in m/s?
B) How long would it take this car to travel 3500m?
Answer:
A) 25.56 m/s (I rounded because it was repeating)
B) 118.40 seconds
Explanation:
To calculate speed/velocity, you divide distance by time so you would do 133/4.5=25.5556
Then, to calculate the time, you divide distance by speed/velocity, so 3500/25.56=118.403
In a mixture the original substances change to form a new substance.
A. True
B. False
What is an example of a material that has been modified to be used in a new or improved technology?
Answer:
wind turbines,photovoltaic cells,concentrated solar power, ocean wave power
This element has four valance electrons and four energy levels.
The typical elemental semiconductors are silicon and germanium, each atom of which has four valence electrons.
6.1x10^-4 in expanded form
Answer:fghkigf
Explanation:gbjyfd
why did she leave me
She left you.. for another pokemon.
O_o - SikeBrehh 9
Answer:
cuz charmander is better lol
Explanation:
The higher the object is and the heavier it is, the less gravitational potential energy it stores.
A. True
B. False
Someone Pls help me it will help. I will give brainlist.
Answer:
nm i believe pls crown
Explanation:
how is sound wave produced?
Answer:
Sound is produced when an object vibrates, creating a pressure wave.
Explanation:
This pressure wave causes particles in the surrounding medium (air, water, or solid) to have vibrational motion. ... The human ear detects sound waves when vibrating air particles vibrate small parts within the ear.
Answer:
A sound wave is created by continuous vibration of an object. We hear sound when these waves created by vibrations reach our eardrum.
If my answer helped, kindly mark me as the brainliest!!
Thank You!!
what does acceleration always refers as
Answer:
Acceleration always refers to a(n) Change in velocity. A change in direction without a change in speed is called velocity.
Explanation:
Answer:
Acceleration is refers as the change in velocity
How might you estimate the minimum temperature?
a.
Find the temperature that lines exactly up with the two ends of the red line
c.
Use the number that lines up with the top part of the blue line on the left of the thermometer
b.
Use the number that lines up with the bottom part of the blue line on the left of the thermometer
d.
Find the midpoint of the redline
Answer:
d. find the midpoint of the redline
What mass of silver will occupy a volume of 87.75 mL?
The density of silver is 10.49 g/mL.
Answer:
The mass of silver that will occupy a volume of 87.75 mL is 920.5 grams.
Explanation:
Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space. In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
[tex]density=\frac{mass}{volume}[/tex]
So the density of silver is 10.49 g / mL indicates that 10.49 g occupies a volume of 1 mL. Then a rule of three can be applied in the following way: if in 1 mL a mass of 10.49 g is occupied, in 87.75 mL how much mass will it occupy?
[tex]mass=\frac{87.75 mL*10.49 g}{1 mL}[/tex]
mass= 920.5 g
The mass of silver that will occupy a volume of 87.75 mL is 920.5 grams.
Anyone knows this please help me
Answer:
True
Explanation:
A scooter traveling at 4 m/s rides 800 meters. For what duration of time has the scooter been traveling?
Answer:
The answer is 200 sExplanation:
To find the duration or time taken we use the formula
[tex]t = \frac{d}{v} \\ [/tex]
where
d is the distance
v is the velocity
From the question
d = 800 m
t = 4 m/s
We have
[tex]t = \frac{800}{4} \\ [/tex]
We have the final answer as
200 sHope this helps you
200secs
The equation is Distance ÷ speed = time so, 800m ÷ 4m/s = 200 secs.
A scientist conducting a field investigation records measurements of very low pressure and high relative humidity at the top of a mountain. A weather map indicates that a warm front is approaching the mountain. Which condition would the scientist most likely observe at the top of the mountain?
Answer:
Please find the answer in the explanation
Explanation:
Given that a scientist conducting a field investigation records measurements of very low pressure and high relative humidity at the top of a mountain.
Since a weather map indicates that a warm front is approaching the mountain, according to the conventional current, the warm front is approaching because the weather must have been in higher relative humidity in cool air.
The warm front is approaching to replace it so that the cool air can conventionally replace the warmth air too.
The condition the scientists will most likely observe at the top of the mountain will be high relative humidity.
What is the mass and density of 237 mL of water
Answer:
V(water)= 237 mL=237×10^-6 m^3ρ(water)=1000 kg/m^3m=ρ×V=(1000)×(237×10^-6)m= 237×10^-3 = 0.237 kgm= 237 gram.The mass number minus the atomic number is equal to the number of
Answer:
neutron
Explanation:
If the entire chart repersents 100 homes, how many households have a pet bird?
Answer:
10
Explanation:
10% of 100 total pets equals 10 :) hope this helps
Describe two uses for a member of each representative group.
You pull a sled with a package on it across a snow-covered flat lawn. If you
apply a force of 46.8 N to the sled, it accelerates at 0.75 m/s2. What is the
combined mass of the package and the sled? (Assume there is no friction.)
A. 62.40 kg
B. 52.50 kg
C. 96.75 kg
D. 35.10 kg
Answer:
m = 62.4 kg
Explanation:
The force applied to the sled, F = 46.8 N
Acceleration of the sled, a = 0.75 m/s²
We need to find the combined mass of the package and the sled. Let it is m. Using definition of force as follows :
F = ma
[tex]m=\dfrac{F}{a}\\\\m=\dfrac{46.8}{0.75}\\\\m=62.4\ kg[/tex]
So, the mass of the package and the sled is 62.4 kg.
Answer:A
Explanation:
A 400kg rock sits on top of a 250m cliff. During an earthquake, the rock falls from the cliff. What is the rock's PE when it is 50m from the ground? PE = mgh = Wh 9 = 9.8 m/s2
Answer:
Explanatioidk
n:
Question 2
1 pts
A study performed yielded results that indicated the more natural sunlight a person was
exposed to, the more likely they were to show increases in serotonin in their
bloodstreams. This correlation is an example of a
correlation
What is the transfer of electricity in a motor?
Answer:
Electrical motor
Explanation:
Converts electrical energy to mechanical energy
A passenger train travels from Orange Grove to Lyman, a distance of 430 km. If the route takes 5.6 h, what is the train's speed?
Answer:
76.7 or 77 kmph
Explanation:
430/5.6=
If a coconut drops from its tree and takes 3.34 seconds to hit the ground, calculate the velocity.
you have not given any information how could we answer this
Calculate the mass (in g) of 0.8 cm³ of steel. The density of steel is 7.8 g/cm³. Give your answer to 2 decimal places.
mass= density times volume so 7.8 g/cm3 by0.8 cm3 answer is 6.24 g and it's already in two decimal places
Answer:
[tex]\boxed{6.24g}[/tex]
Explanation:
→ Utilise the density formula
Density = Mass ÷ Volume
→ Rearrange to make mass the subject
Mass = Density × Volume
→ Identify the density and volume values
Density = 7.8 and Volume = 0.8
→ Substitute the values into the density equation
Mass = 7.8 × 0.8 = 6.24 g
12.
Which of the following does NOT describes alpha decay?
a. changes the elemental identity of the atom c. absorbs binding energy to produce more stable
nucleus
b. emits a high energy helium nucleus d. mostly occurs in proton heavy nuclei below the zone of
stability
a macine that increases speed, a machine that changes the direction of force and a machine that increases force
When you put your hands on a cold object, like
a glass of ice water, your hands become____________
The glass of water______________becomes
___________if you leave your hands on it for a long time. If you
leave the glass of ice water out in the sun, the
ice will start to ____________________.
Answer:
cold, warm and melt
Explanation:
