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
kupik [55]
3 years ago
12

Please answer ASAP for 29 points

Physics
1 answer:
const2013 [10]3 years ago
5 0

Answer:

Explanation:

The answer is B. He needs to count backwards. So if it’s 800,700,600, and 500, you might get the answer right.

You might be interested in
A car starts from rest and travels for 5.8 s with a uniform acceleration of 1.6 m/s² in the negative direction. What is the fina
elena-s [515]

Answer:

Final velocity of the car will be -9.28 m/sec        

Explanation:

We have given that the car starts from the rest so initial velocity of the car u = 0 m /sec

Acceleration of the car a=1.6m/sec^2 in negative direction so acceleration will be a=-1.6m/sec^2

From first equation of motion we know that

v = u+at

So v=0+(-1.6)\times 5.8=-9.28m/sec

So final velocity will be -9.28 m/sec

8 0
4 years ago
Which one of the following substances is a liquid fuel used in rocket engines?
sergiy2304 [10]
The answer is, "B", "Ammonia".
4 0
3 years ago
Read 2 more answers
8. Volcanoes that are mostly made up of pyroclastic material are called?
djyliett [7]

Answer:

I think it is Cinder Cone volcano.

6 0
3 years ago
How do we maintain heat in our body ?​
zysi [14]

Answer:

When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Once on the surface, the water evaporates. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.

Explanation:

The system can respond to internal and external influences and make adjustments to keep your body within a degree or two of your normal. The hypothalamus and your autonomic nervous system work with your skin, sweat glands, muscles and even your blood vessels to keep your temperature normal. As in other mammals, thermoregulation is an important aspect of human homeostasis. Most body heat is generated in the deep organs, especially the liver, brain, and heart, and in contraction of skeletal muscles. Some nuts like peanuts, almonds, cashews, pistachios, and dates are also beneficial in winter. These nuts speed up your metabolism and increase your body temperature, eventually making you feel hot.

7 0
3 years ago
A 2-kg bowling ball rolls at a speed of 10 m/s on the ground.
liberstina [14]
It's kinetic energy as the ball the ball isn't raised above the ground it does not have any gravitational potential energy. 
To find the kinetic energy of the ball you will have to use the formula:
KE=0.5 x m x v squared
m being mass and v being velocity 
so the calculation is:
0.5 x 2 x 10 x 10= 100J
8 0
4 years ago
Other questions:
  • What is the input of energy for a device that provides 50 units of useful energy and has an efficiency of 0.55?
    5·1 answer
  • A horizontal spring with spring constant 130 N/m is compressed 17 cm and used to launch a 2.8 kg box across a frictionless, hori
    14·1 answer
  • (4 points) A mother with mass m1 is skating at velocity v1 behind her daughter whose mass is m2, who is skating at v2 . Instead
    5·1 answer
  • What is the independent variable of the catapult?
    6·1 answer
  • Find the value of k for which the given pair of vectors are not equal<br>2ki +3j​ and 8i + 4kj
    7·1 answer
  • What does it mean for an atom to be electronegative? How does this affect the shape and overall charge of a water molecule?
    14·1 answer
  • Sugar is made of carbon, hydrogen, and oxygen atoms. Sugar is
    8·2 answers
  • a ball is thrown upward at 25 m/s from the ground. what is the average velocity and average speed of the ball after 5 seconds?​
    10·1 answer
  • Smoke detectors fall into two major classes. Ionization detectors, the most common units, contain two parallel electrodes that a
    7·1 answer
  • true or false. A small pick-up truck traveling at 55 km/h has more momentum than a full-sized bus traveling at the same speed
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!