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
densk [106]
2 years ago
6

Can you guys please help me with this science quiz

Physics
1 answer:
Xelga [282]2 years ago
8 0

Answer:

1 is 90, 2 is 200 and 3 is 5

Explanation:

im big brain so i know lol

You might be interested in
When you float an ice cube in water, you notice that 90% of it is submerged beneath the surface. Now suppose you put the same ic
Kruka [31]

Answer:

more than 90%

Explanation:

In the unknown liquid the buoyant force and weight relation is

V\rho_lg=mg\\\Rightarrow V\rho_l=m

It can be seen that if the density decreases the buoyant force decreases.

If the object is already 90% submerged in water then, if the other liquid has density less than that of water the object will be submerged more than 90%.

8 0
3 years ago
Which planet will take the shortest revolution around the sun?
LUCKY_DIMON [66]
The planet closest to the sun; Mercury.
3 0
3 years ago
Read 2 more answers
A massless string connects a 10.00 kg mass to a 13.00 kg cart which is resting on a frictionless horizontal surface. The mass ha
ch4aika [34]

The cart's acceleration to the right after the mass is released  is determined as 7.54 m/s².

<h3>Acceleration of the cart</h3>

The acceleration of the cart is determined from the net force acting on the mass-cart system.

Upward force = Downward force

ma = mg

13a = 10(9.8)

13a = 98

a = 98/13

a = 7.54 m/s²

Thus, the cart's acceleration to the right after the mass is released  is determined as 7.54 m/s².

Learn more about acceleration here: brainly.com/question/14344386

#SPJ1

6 0
2 years ago
A beam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. T
ale4655 [162]
Just try your hardest
3 0
3 years ago
A packing crate rests on a horizontal surface. It is acted on by three horizontal forces: 600 N to the left, 200 N to the right,
egoroff_w [7]

Answer:

The resultant force would (still) be zero.

Explanation:

Before the 600-N force is removed, the crate is not moving (relative to the surface.) Its velocity would be zero. Since its velocity isn't changing, its acceleration would also be zero.

In effect, the 600-N force to the left and 200-N force to the right combines and acts like a 400-N force to the left.

By Newton's Second Law, the resultant force on the crate would be zero. As a result, friction (the only other horizontal force on the crate) should balance that 400-N force. In this case, the friction should act in the opposite direction with a size of 400 N.

When the 600-N force is removed, there would only be two horizontal forces on the crate: the 200-N force to the right, and friction. The maximum friction possible must be at least 200 N such that the resultant force would still be zero. In this case, the static friction coefficient isn't known. As a result, it won't be possible to find the exact value of the maximum friction on the crate.

However, recall that before the 600-N force is removed, the friction on the crate is 400 N. The normal force on the crate (which is in the vertical direction) did not change. As a result, one can hence be assured that the maximum friction would be at least 400 N. That's sufficient for balancing the 200-N force to the right. Hence, the resultant force on the crate would still be zero, and the crate won't move.

6 0
3 years ago
Other questions:
  • resolve the position vector A of thd car (measured from fixed point O) into components parallel to OB and OC
    13·1 answer
  • Are we even real? Do we exist or are we robots or a simulation or experiment?
    14·2 answers
  • The box leaves position x=0x=0 with speed v0v0. The box is slowed by a constant frictional force until it comes to rest at posit
    8·1 answer
  • Two trains leave the station at the same time, one heading east and the other west. the eastbound train travels at 85 miles per
    14·1 answer
  • A sled is moving down a steep hill. The mass of the sled is 50 kg and the net force acting on it is 20 N. What must be done to f
    7·2 answers
  • For refraction to occur in a wave, the wave must
    9·2 answers
  • TRUE OR FALSE?
    6·1 answer
  • Which of the following changes would not lead to changes in the efficiency of
    7·1 answer
  • Can someone please answer this, ill give you brainliest Would be very appreciated.
    6·2 answers
  • In the sum of 4.34 + 5.66, the number of significant figures is
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!