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
Crank
3 years ago
11

Help please

Physics
1 answer:
Anarel [89]3 years ago
4 0

Answer:

1) D, 2) D, 3) B, 4) B, 5) C

Explanation:

You are asked to select the correct answer

1)  The conservation of energy is one of the most important principles of physics that allows solving countless problems in life.

the correct answer is D

2) when a body falls, the gravitational potential energy is transformed into kinetic energy and both are transformed into thermal energy

the correct answer is D

3) When the gravitational potential energy is maximum, the kinetic energy is minimum and when the kinetic energy is maximum, the gravitational energy is minimum.

Correct answer B

4) speed is defined by

         v = x / t

so the correct answer is B in the SI system

5) when we repeat a measurement several times, the random or statistical errors decrease, therefore the confidence of the measurement increases.

The correct answer is C

You might be interested in
7.a railway truck A of a mass of 2000kg moves westwards with a velocity of 3m/s. It collides with a stationary truck B 1200kg, l
ziro4ka [17]

Answer:

9. A 1500kg car traveling +6m/s with a 2000kg truck at rest. The vehicles collide, but do not stick together. The car has a velocity -3m/s after the collision. What is the velocity of the truck? a. What type of collision occurred above?

6 0
3 years ago
I want to answer these questions about vectors
stellarik [79]

Answer:

the first one answer is no

4 0
3 years ago
Divers in acapulco, mexico, dive headfirst at 8 feet per second from the top of a cliff 87 feet above the pacific ocean. during
xxMikexx [17]
Depends on the wieght of his genitals.
8 0
3 years ago
One Newton is equivalent to<br> A. 1 kg/s2<br> B. 1 kg*m/s<br> C. 1 kg*m/s2<br> D. 1 kg/s
tiny-mole [99]

Answer:

B

Explanation:

7 0
2 years ago
What are flask used for primarily in the lab
Vlad [161]
To measure the fluids that you will be using such as water or other chemicals if your mixing them and they have to be precise measurements
6 0
3 years ago
Other questions:
  • A farmer conducts an experiment to determine whether or not feeding his milk cows an organic diet affects the taste of the cow's
    12·2 answers
  • 49. In what direction does the force of friction act?
    10·1 answer
  • A kite is hovering over the ground at the end of a straight 38-m line. the tension in the line has a magnitude of 17 n. wind blo
    5·1 answer
  • how far can your little brother get if he can travel at 2.5 m/s and in 5 seconds you will discover that his gin has run out of p
    15·1 answer
  • An office window has dimensions 3.7 m by 2.1 m. As a result of the passage of a storm, the outside air pressure drops to 0.972 a
    11·1 answer
  • Police radar guns measure the speed of moving vehicles by transmitting electromagnetic waves at a vehicle and detecting a Dopple
    13·1 answer
  • Will ice melt faster in salt, sugar or water?
    5·1 answer
  • What is A rounded to the nearest tenth?
    12·1 answer
  • Help asap I will give brainleast
    15·1 answer
  • How does position depend on time on a free falling motion, for short distance, near the surface of the earth?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!