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
musickatia [10]
3 years ago
10

Which of the following is a device that uses an inclined plane?

Physics
2 answers:
Eduardwww [97]3 years ago
8 0

Answer:

B. wheelchair ramp

D. half-pipe at a skate park

Hope that helps!

Mnenie [13.5K]3 years ago
5 0

Answer:

A and B

Explanation:

You might be interested in
Which action involves the most efficient conversion of electrical energy into thermal energy?
azamat

Answer:

the answer is option d

because in oven which works through electricity ,it will bake the cake (heat energy is produced)

7 0
3 years ago
Find the image position for a picture placed 3.0 cm outside the focal point of a converging lens with a 4.0 cm focal length. a.
horrorfan [7]
<span>Answer: Using 1/f = 1/d' + 1/d ...(where d' object distance and d is image distance) 1/4 = 1/7 + 1/d 1/4 - 1/7 = 1/d 3/28 = 1/d d = 28/3 d = 9.33 cm</span>
5 0
3 years ago
Optimal cardiorespiratory fitness requires a BMI of __________.
PtichkaEL [24]

Answer:

A. 18.5 to 24.9

Explanation:

5 0
3 years ago
Read 2 more answers
If a car has a kinetic energy of 40000 J and is moving at a velocity of 25 m/s, what is the mass of the car? KE=1/2mv
ohaa [14]

Answer:

3200 Kg

Explanation:

Just apply the formula:

40.000 = 1/2 . m . 25

80.000 = 25m

m = 80.000/25

m = 3200 Kg

7 0
3 years ago
A polonium isotope with an atomic mass of 211.988868 u undergoes alpha decay, resulting in a daughter isotope with an atomic mas
prisoha [69]

Answer:

 K = 9.53 MeV

Explanation:

The kinetic energy that the alpha particle has emitted, is the energy in excess after removing the resting energy of the atoms and the helium nucleus that forms the alpha particle

Since energy and masses are related and cannot be

          m₀ c² = m_{f} c² + m_He c²+ K

          K = c² (m₀ - m_{f} - m_He)

           

the mass of the Helium atom is 4 u

           K = (3 10⁸)² (211,988868 -207.976652 - 4,002) 1,661 10⁻²⁷

           K = 14,949 10⁻¹¹ (0.0102)

             

          K = 1,527 10⁻¹² J

let's reduce 1 J = 6,242 10¹² MeV

           K = 9.53 MeV

7 0
3 years ago
Other questions:
  • Which of the following air conditions would be LEAST likely to have precipitation 10 pts
    12·1 answer
  • A pelican flying along a horizontal path drops a fish from a height of 4.7 m. The fish travels 9.3 m horizontally before it hits
    9·1 answer
  • Suppose there is a sample of xenon in a rectangular container. The gas exerts a total force of 4.47 N perpendicular to one of th
    8·1 answer
  • 2,000 kg car moving at 5 m/sec to east collides with 6,000 kg car moving 3 m/sec to west. If cars couple together, what is their
    10·1 answer
  • Please help me ;3 (ALSO REMEMBER IT SAYS SELECT TWO)
    6·2 answers
  • A rock has a mass of 3.1 kg. What is its weight on earth
    14·1 answer
  • Using the vocabulary words we have learned so far in this unit, describe what happens when something warms up.
    13·2 answers
  • What is the velocity of a car that travels from mile marker 32 on I-10 to mile marker 312 on I-10 in a time of 2 hours and 45 mi
    12·1 answer
  • Determine the distance above Earth's surface to a satellite that completes four orbits per day.
    14·1 answer
  • In the first direct detection of gravitational waves by LIGO in 2015, the waves came from A. the collapse of a nearby star into
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!