A spoon can sound like bell no this is not a riddle it science prove it

Answers

Answer 1

Answer: Metals have a property of being sonorous, that is they make ringing sounds when stuck hard and dpoon and bell both are made of metals.

Related Questions

if a bowling ball hits a wall a force of 6 N, the wall exerts a force of how much back. on the bowling ball
The method of heat transfer that plays a central role in transferring heat energy within the atmosphere and the ocean is A. convection. B. radiation. C. conduction. D. reflection.
A teacher points to a microscope sitting on the desk. Which conclusion best explainswhy the microscope is not moving?
14. Cost is an example of_in designing a product.O a solutionO a constraintO an ideaO a trade-off
How does Exploring the unseen activity relate to how scientists figure out what an atom looks like?

If an atom is neutral, then the number of electrons is equal to the number of

Answers

Answer:

The number of protons in the nucleus of the atom is equal to the atomic number (Z). The number of electrons in a neutral atom is equal to the number of protons. The mass number of the atom (M) is equal to the sum of the number of protons and neutrons in the nucleus.

hope it helps:)

Answer:

Then number of electrons is equal to number of protons

Explanation:

Since protons are positive and electrons are negitive, they cancel each other.

HENCE THEY ARE NEUTRL

Hope it helps u...

A car goes 152 miles in 2 hours and 5 minutes. Calculate the car’s speed in units of m/s. 1 mi = 1600 m.

Answers

Answer:

The speed of the car is 32.4m/s

Explanation:

1mi = 1600m

152mi = 243 200m

2hr 5min = 7200s + 300s

= 7500s

speed = distance/time

= 243200/7500

= 32.4m/s (3s.f)

Hope it helps :) !!!!!!

A car traveling with constant speed travels 150 km in 7200 s. What is the speed of the car?Express the speed to two significant figures and include the appropriate units.

Answers

The speed of the car is 75 km/h

Further explanation

These are the formulas that we have to remember before solving the problem.

Speed is the rate of change of distance.

$\large { \boxed {v = (d)/(t)}}$

v = speed ( m/s )

d = distance ( m )

t = time ( s )

Acceleration is the rate of change of velocity.

$\large { \boxed {a = (\Delta v)/(t)}}$

a = acceleration ( m/s² )

Δv = change in speed ( m/s )

t = time ( s )

Let us now tackle the problem!

Given:

distance = d = 150 km

time taken = t = 7200 s = 2 hours

Unknown:

velocity = v = ?

Solution:

$v = (d)/(t)$

$v = (150)/(2)$

$\large {\boxed {v = 75~km/h} }$

The acceleration of the car is 0 m/s² because it travels with constant speed.

We could also plot the distance vs time graph as shown in the attachment.

Learn more

Velocity of A Runner : brainly.com/question/3813437
Kinetic Energy : brainly.com/question/692781
Acceleration : brainly.com/question/2283922

Answer details

Grade: Middle School

Subject: Physics

Chapter: Kinematics

Keywords: indycar top speed of a fastest police car has ever gone

Final answer:

The car's speed is 75 km/hour, as determined by dividing the total distance travelled (150 km) by the total time taken (2 hours).

Explanation:

To answer this question, we use the

formula for speed

, which is distance traveled divided by the time taken. Here, the distance travelled by the car is 150 km and the time taken is 7200 s (which is equal to 2 hours). Therefore, the speed will be 150 km divided by 2 hours, resulting in a speed of

75 km/hour

, stated to the correct number of significant figures.

Learn more about Speed Calculation here:

brainly.com/question/35969362

#SPJ6

Which one of the following is not a safety rule in the laboratory. a. To sit on a stool
b. To follow instructions
c. To wear shoes with hard soles
d. Handling apparatus

Answers

Answer:

C. To wear shoes with hard soles

Explanation:

Without water's hydrogen bonds, whichof the following would occur?
Select all that apply.
A
Water would be a gas at room temperature,
B
Water would boil at 100 degrees Celsius.
C
Water would form droplets.
D
ice would sink.

Answers

Answer:

A. Water would be a gas at room temperature, and

D. Ice would sink in water.

Explanation:

There are three types of intermolecular forces: London dispersion forces, dipole-dipole interactions, and hydrogen bonds. The relative strength of these forces depend on the size of the molecule. However, for small molecules like water (three atoms per molecule,) hydrogen bonds would be much stronger than the other two types of forces.

Without hydrogen bonds, water molecules would be held together only with dipole-dipole interactions and London dispersion forces. To get an idea of what that would be like, consider hydrochloric acid $\rm HCl$ .

$\rm HCl$ and water $\rm H_2O$ contain about the same number of electrons. The H-Cl bond in $\rm HCl$ is polar, which allows for dipole-dipole interactions. However, only H-O, H-F, and H-N bonds allow for hydrogen bonding. As a result, there won't be any hydrogen bonding between $\rm HCl$ molecules. Without hydrogen bonding, $\rm HCl$ boils at well below $\rm 0\; ^\circ C$ under standard pressure. It is a gas at room temperature under standard pressure. That's about the same as what water molecules would behave (physically) without any hydrogen bonds between them.

Also because of hydrogen bonding, the density of ice (solid $\rm H_2O$ ) is typically greater than that of water (liquid $\rm H_2O$ .) When compared to water in its liquid state, there are more hydrogen bondings between molecules of water in its solid state. The hydrogen bonds hold the molecules together to form a lattice. Because of this structure due to hydrogen bondings, the molecules are farther apart than they are in the liquid states. As a result, the density of ice is typically smaller than that of water. That would likely not be the case if there was no hydrogen bondings between water molecules.

a bus travelling on a straight road at 25m/s accelerates uniformly at 5m/s squared for 2 seconds. find its speed in kilometres per hour