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
Sonbull [250]
3 years ago
5

GIVING BRAINLIEST

Physics
1 answer:
Lapatulllka [165]3 years ago
8 0

A block has a volume of 0.09 m3 and a density of 4,000 kg/m3. The force of gravity acting on the block in water is 3,528 N. density = mass / volume , mass= 4000*0.09 =360 kg , force = mass *acc , force = 360 *9.8 = 3,528 N

A)3528 N

You might be interested in
Radiation with a wavelength of 238 nm shines on a metal surface and ejects electrons that have a maximum speedof 3.75 X 105 m/s.
Ulleksa [173]
The Answer is e) - Gold.
4 0
2 years ago
A car completes a journey in 2 hours. Its average speed over this journey was 45mph. Calculate the distance travelled by the car
HACTEHA [7]

Distance = average speed ×time

Distance = 45 × 2

Distance = 90 miles

8 0
3 years ago
A 600-kg car traveling at 30.0 m/s is going around a curve having a radius of 120 m that is banked at an angle of 25.0°. The coe
andrey2020 [161]

Answer:

The magnitude of force is 1593.4N

Explanation:

The sum of the horizontal components of the friction and the normal force will be equal to the centripetal force on the car. This can be represented as

fcostheta + Nsintheta = mv^2/r

Where F = force of friction

Theta = angle of banking

N = normal force

m = mass of car

v = velocity of car

r = radius of curve

The car has no motion in the vertical direction so the sum of forces = 0

The vertical component of the normal force acts upwards whereas the weight of the car and the vertical component friction acts downwards.

Taking the upward direction to be positive,rewrite the equation above to get:

Ncos thetha = mg - fsintheta =0

Ncistheta = mg + fain theta

N = mg/cos theta + sintheta/ costheta

fcostheta +[mg/costheta + ftan theta] sin theta = mv^2/r

Substituting gives:

f = (1/(costheta + tanthetasintheta) + mgtantheta = mv^2/r - mgtantheta)

Substituting given values into the above equation

f = 1/(cos25 + tan 25 )(sin25)[ 600×30/120 - (600×9.81)tan

f = 1593.4N25

4 0
3 years ago
Read 2 more answers
Jamie is a hairstylist who works in a salon. He noticed that when many of the stylist or blow drying hair the power goes out wha
Mashcka [7]
The people are using a lot of electricity blow drying to many peoples hair so i would make a schedule so it dosent get to busy with costumers
6 0
3 years ago
Read 2 more answers
I NEED HELP ASAP!!!!!
Ratling [72]

Answer:

D) momentum of cannon + momentum of projectile= 0

Explanation:

The law of conservation of momentum states that the total momentum of an isolated system is constant.

In this case, the system cannon+projectile can be considered as isolated, because no external forces act on it (in fact, the surface is frictionless, so there is no friction acting on the cannon). Therefore, the total momentum of the two objects (cannon+projectile) must be equal before and after the firing:

p_i = p_f

But the initial momentum is zero, because at the beginning both the cannon and the projectile are at rest:

p_i = 0

So the final momentum, which is sum of the momentum of the cannon and of the projectile, must also be zero:

p_f = p_{cannon}+p_{projectile} =0

6 0
3 years ago
Other questions:
  • A mining crew extracted two different types of minerals from underground. Then, they transferred the same amount of energy into
    11·2 answers
  • What is the formula for Impedance for circuit with R, C, and L?
    13·1 answer
  • Imagine you derive the following expression by analyzing the physics of a particular system: a=gsinθ−μkgcosθ, where g=9.80meter/
    6·1 answer
  • Shuffle a deck of cards and turn over the first card. What is the sample space of the experiment? How many outcomes are in the e
    14·1 answer
  • When you share photos on sites like Pinterest and​ Instagram, you may be participating in research that tracks consumption patte
    8·1 answer
  • What was the most serious money problem faced by people in the early United States?
    9·1 answer
  • An elevator of mass M is at rest when its cable breaks. The elevator falls a distance h before it encounters a massless, cushion
    12·1 answer
  • 57. A red ball (m= 10 kg) is moving at 3 m/s. A green ball (m = 8 kg) is moving at 3.5 m/s. Which ball has more
    7·1 answer
  • Un Esquiador Inicia un Salto Horizontal con una velocidad Inicial de 25 m/s. La Altura al Final de la Rampa es de 80 m del punto
    15·1 answer
  • Infrared and ultraviolet waves have different frequencies.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!