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
kherson [118]
4 years ago
6

Find the acceleration of a body whose velocity increases from 11ms-1 to 33ms-1 in 10 seconds

Physics
2 answers:
Anvisha [2.4K]4 years ago
8 0
Acceleration is equivalent to the rate of change of velocity.

Calculate the difference of velocity, and divide by the total time it took for the change to happen.

(33 \frac{m}{s}  - 11 \frac{m}{s} ) \div 10seconds \\  = 2 \frac{m}{ {s}^{2} }
That is the answer.
Alex777 [14]4 years ago
7 0
As we know that 
a= dell   V/t
then put values
a=   2ms/^2
You might be interested in
A ball of mass 2kg falls from a height of 200m. Calculate it's kinetic energy after falling a distance of 50m . (g=10m/s²) . Neg
SCORPION-xisa [38]

Answer:

U = 1000 J

Explanation:

By the conservation of energy, potential energy is converted into kinetic energy when the ball falls from a height.

 U = \frac{1}{2} mv^2 = mgh

U = Energy (in Joules)

m = mass (in kg)

v = velocity in (m/s)

g = acceleration due to gravity (in m/s^2)

h = height (in m)

Let's use mgh as we have the values given.

U = 2(10)(50)

U = 1000 J

4 0
3 years ago
Lightning a. occurs when a positively charged cloud base induces a negative charge on the Earth's surface. b. travels most often
mart [117]

Answer:

c. may be accompanied by the sound of explosively expanding hot air, called thunder.

Explanation:

Lightning is a discharge which is due to the reaction between oppositely charged charges in the clouds, or between clouds base and the Earth surface.

The motion of the cloud causes charging of clouds by friction, thus the reaction between opposite charges (jumping of charges from one cloud to another) in the cloud can lead to lightning. Also, oftentimes the bottom of a cloud is negatively charged so that this is attracted to the positive charge on the earth surface. Thus leading to a discharge called lightning.

Thus in the given question, the appropriate option is C. This implies that, lightning may be accompanied by the sound of explosively expanding hot air, called thunder.

8 0
3 years ago
Problem 5 A block of mass 3 kg slides on a horizontal, rough surface towards a spring with k = 500 N/m. The kinetic friction coe
vredina [299]

Answer:

Explanation:

given,

mass of block = 3 kg

spring constant k = 500 N/m

kinetic friction coefficient µk = 0.6

speed of block = 5 m/s

F = µk  N

F = 0.6 x 3 x 9.8

F = 17.64 N

using energy conservation

\dfrac{1}{2}mv^2=\dfrac{1}{2}kx^2+Fx

\dfrac{1}{2}\times 3 \times 5^2=\dfrac{1}{2}\times 500 \times x^2+17.64\times x

250 x² + 17.64 x - 37.5 = 0

on solving

x = 0.354 m

graph is attached below

4 0
4 years ago
Read 2 more answers
Two point sources are vibrating in phase producing two-dimensional water wave interference. The first antinodal line on either s
Viktor [21]

For all antinodal positions we know that

\Delta \phi = 2N\pi

now we also know the relation between phase difference and path difference

\Delta \phi = \frac{2\pi}{\lambda}\Delta x

now we will have

2N\pi = \frac{2\pi}{\lambda}\Delta x

now from above equation we will have

\Delta x = N\lambda

now for the first anti node position

N = 1

\Delta x = \lambda

Option D is correct

4 0
3 years ago
A cosmic ray proton moving toward the Earth at 5.00 10 m/s 7 × experiences a magnetic force of 1.70 10 N −16 × . What is the str
EastWind [94]

Answer:

Magnetic field will be equal to B=3\times 10^{-5}T

Explanation:

We have given velocity of proton 5\times 10^7m/sec

Magnetic force experienced by proton F=1.7\times 10^{-16}N

Charge on proton q=1.6\times 10^{-19}C

Angle between field and velocity \Theta =45^{\circ}

Force in magnetic field is equal to F=qBVsin\Theta

So 1.7\times 10^{-16}=1.6\times 10^{-19}\times 5\times 10^7\times B\times sin45^{\circ}

B=3\times 10^{-5}T

So magnetic field will be equal to B=3\times 10^{-5}T

7 0
3 years ago
Other questions:
  • What device can be used to make measurements globally
    5·1 answer
  • What electromagnetic wave can permanently damage skin?
    7·1 answer
  • Which two types of waves can transmit energy through a vacuum?
    10·2 answers
  • Newton’s third law of motion is also known as action/_______?
    11·2 answers
  • Write the formula used to calculate the weight of an object
    5·2 answers
  • A ball is thrown upward from the ground with an initial speed speed of 25 meters/second; at the same instant, a ball is dropped
    8·1 answer
  • What is the minimum height of a planar mirror placed in a vertical plane 2m distant that will permit a person 2m tall to see the
    9·1 answer
  • 5) A net force of 12 Newtons acting north on an object for 4.0 seconds will produce an impulse of
    12·1 answer
  • According to Ohm's law, determine the experimental
    13·1 answer
  • Convert 41.3 kilocalories into joules.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!