Water pressure in a lake is greater __________. a. at the bottom b. at the surface c. at any point, for pressure is the same d. throughout midway to the bottom
Answers
Answer:
The correct answer a
Explanation:
In the fluid pressure is a measure of force per unit area, in this case force is the weight of the fluid that increases as we descend. Therefore, the pressure increases with the depth of the fluid.
The correct answer a
Answer:
a. at the bottom
Explanation:
Since water at the bottom of the lake is under pressure by all the water molecules above it plus atmospheric pressure. It is no doubt that the pressure at the bottom of the lake is larger than pressure in the middle and at the surface of the lake.
Related Questions
This is Psychology. Define each of the following: Consensus, consistency, distinctiveness.
A car that travels from point A to point B in four hours, and then from point B back to point A in six hours. The road between point A and point B is perfectly straight, and the distance between the two points is 240 km. What is the car’s average velocity?
The metric unit of force is _____. kg kg/cm3 kg/cm2 N
Explain the difference between mass and weight for objects on earth and on the mooon
Answers
Answer:
The formula for acceleration due to gravity at the surface of a celestial body is:
a = (G * M) / r^2
Where:
G (the gravitational constant) is approximately 6.67430 x 10^-11 m^3 kg^-1 s^-2.
M (the mass of Jupiter) is approximately 1.898 x 10^27 kilograms.
r (the mean radius of Jupiter) is approximately 71,492,000 meters.
Now, let's calculate it:
a = (6.67430 x 10^-11 m^3 kg^-1 s^-2 * 1.898 x 10^27 kg) / (71,492,000 meters)^2
a ≈ 24.79 m/s^2
So, the free-fall acceleration at the surface of Jupiter is approximately 24.79 m/s^2.
Final answer:
The free-fall acceleration on the surface of Jupiter (g) is calculated by using Newton's Universal Law of Gravitation (g = G * M / r^2), where G is the gravitational constant, M is the mass of Jupiter and r is the radius of Jupiter.
Explanation:
To calculate the acceleration due to gravity at the surface of Jupiter, we can use Newton's Universal Law of Gravitation. It states that the force of gravity is equal to the gravitational constant (G) times the mass of the body (in this case, Jupiter) divided by the radius of the body squared. The formula can be expressed as F = G * (M * m / r^2), where F is the force of gravity, G is the gravitational constant, M is the mass of the larger body (Jupiter), m is the mass of the smaller body (object in question), and r is the distance between the centers of the two bodies - which is the radius of Jupiter when the object is on its surface.
The formula to find the acceleration due to gravity (g) on the surface of Jupiter is found by setting the weight of an object (F = m*g) equal to the gravity force (F = G * (M * m / r^2)) leading to the cancellation of the mass of the object (m). That results in g = G * M / r^2. This means that the acceleration due to gravity on the surface of Jupiter depends on the mass of Jupiter and the radius of Jupiter, and not on the mass of the object.
Learn more about Jupiter's Free-fall Acceleration here:
#SPJ11
The mass needs to be reduced.
The distance that the force is exerted needs to increase.
The mass needs to be increased.
Answers
Answer:
The distance that the force is exerted need to increase
Explanation:
Work is defined as the product of the force and distance in the direction of applied force.
W = Fd ………………. (i)
Equation (i) shows that work done can be changed by changing either force or distance. If you reduce force, you have to increase distance accordingly to keep work done constant.
tsunami waves
breakers on an ocean beach
waves created by a passing motor boat
Answers
Answer: Option (b) is the correct answer.
Explanation:
Tsunami is formed due to the underwater disturbances or underwater earthquake.
Tsunami has long wavelengths due to which it behaves as a shallow water wave and these waves propagate at very high speed with high energy and limited energy loss.
As a result, tsunami is able to cause huge and massive destruction to areas it is surrounding.
Thus, we can conclude that tsunami waves are the water waves which has more energy.
Tsunami Waves or option B would be your answer.
Answers
The force each wire exert will be "390.62 N".
The given values are:
Weight,
- mg = 500 N
Angle,
- θ = 100°
As we know,
The sum of vertical forces = 0
then,
→
Now,
→
By substituting the value, we get
→
→
→
→
Learn more:
The mass of water in the kettle is 0.50 kg.
The specific heat capacity of water is 4200 J/kg °C.
The initial temperature of the water is 100 °C.
Calculate the average power output from the water in the kettle to the surroundings in 2 hours
Answers
Answers
Answer:
The answer is B wavelength
Answer:B) wavelength
Explanation:The distance from point A to B is the wavelength. It can be measured from crest to crest or trough to trough.