1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vlada-n [284]
3 years ago
8

Q3. A bridge is built without expansion gaps.

Physics
1 answer:
snow_tiger [21]3 years ago
6 0
The answer is A ) much hotter
You might be interested in
Why the watt is called derived unit ?​
Yuri [45]

Answer:

It is because it is a unit of Power(which is a derived quantity)

4 0
2 years ago
5. a stone propelled from a catapult with a speed of 50 m/s attains a height of 100m. Calculate
omeli [17]

Answer:

<h3>The answer is 2 s</h3>

Explanation:

The time of flight can be found by using the formula

t =  \frac{d}{v}  \\

d is the distance covered

v is the velocity

From the question we have

t =  \frac{100}{50}  =  \frac{10}{5}  \\

We have the final answer as

<h3>2 s</h3>

Hope this helps you

8 0
2 years ago
Why did John Dalton describe atoms as solid spheres, and did he think all spheres were the same?
Ray Of Light [21]
Go here to get some help now a=can you help me i posted it on your profile


 https://www.khanacademy.org/science/chemistry/electronic-structure-of-atoms/history-of-atomic-struct...
8 0
3 years ago
Church organs have a set of pipes with different lengths. With those different pipes organs can produce sounds over a wide range
Paraphin [41]

Answer: The shortest possible wavelength of sound the organ can produce is 0.224 m

Explanation:

To calculate the wavelength of light, we use the equation:

\lambda=\frac{c}{\nu}

where,

\lambda = wavelength of the light

c = speed of light = 331m/s

As wavelength and frequency follows inverse relation, shortest wavelength is produced by highest frequency.

\nu = highest frequency of light = 1.48kHz=1.48\times 10^3Hz=1.48\times 10^3s^{-1}       1Hz=1s^{-1}

\lambda=\frac{331m/s}{1.48\times 10^3s^{-1}}=0.224m

Thus the shortest possible wavelength of sound the organ can produce is 0.224 m

8 0
3 years ago
What is the net force of an object that has 7N to the left and right and 3N up
Stolb23 [73]

Answer:

the net force would be 3N in the upward direction since the two forces acting on the left and right of the object cancel out.

Explanation:

3 0
3 years ago
Other questions:
  • Divers in acapulco, mexico, dive headfirst at 8 feet per second from the top of a cliff 87 feet above the pacific ocean. during
    13·1 answer
  • A changing magnetic field can produce an electric current. True or False?
    15·1 answer
  • a place that is typically cold because of an increase in altitude would most likely have what type of climate? dry climate mild
    15·1 answer
  • Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average power per kilogram generate
    10·1 answer
  • I will fan and give 2 medals!!!!!!
    8·1 answer
  • What is sound advice for people becoming better listeners?
    10·2 answers
  • Two objects were lifted by a machine. One object had a mass of 5000 kg, and was lifted at a speed of 2 m/sec. The other had a ma
    11·1 answer
  • A ball is thrown with a velocity of 10 m/s at a 25º from the horizontal. How far does the ball travel?
    13·1 answer
  • How to delete question​
    14·2 answers
  • Calculate the volume that 42g of nitrogen gas (N2)occupies at standard temperature and pressure.​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!