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
kolbaska11 [484]
3 years ago
5

A boy throws a rock with an initial horizontal velocity of 17.0 m/s and an initial vertical velocity of 21.0 m/s. How high above

the boy's hand is the rock after 2.8 s?
Physics
1 answer:
IgorC [24]3 years ago
8 0

Answer:

53.2

Explanation:

You can use the kinematic equation: displacement of x = (initial velocity + final velocity)*t/2

Subsititing: 17+21 = 38 * 2.8/2 = 53.2

Note: Displacement = distance between the 2 points

You might be interested in
How many Medals in the Luge does the U.S. have?
Dafna11 [192]

Answer:

American athletes have won a total of 2,523 medals (1,022 of them gold) at the Summer Olympic Games and another 305 (105 of them gold) at the Winter Olympic Games, making the United States the most prolific medal-winning nation in the history of the Olympics.

Explanation:

Hope this helps! ^^

7 0
3 years ago
Starting from equilibrium at point 0, what point on the pv diagram will describe the ideal gas after the following process? lock
Anna71 [15]
Since the product of P·Vis constant along an isotherm, an expansion to twice the volume implies a pressure reduction to half the original pressure. I hope my answer has come to your help. God bless and have a nice day ahead!<span>
</span>
3 0
3 years ago
Read 2 more answers
Weight is measured in units called
Aleksandr-060686 [28]
Pounds

If you are talking about the unit of measurement for weight is that of force it would be Newtons.
8 0
3 years ago
What is work in science
mr_godi [17]

Answer:

The scientific defenision of work reveals its relationship to energy; whenever work is done, energy is transfered.

4 0
3 years ago
An action that has the ability to change an object’s state of motion is
Aleksandr-060686 [28]

Answer:

An unbalanced force

Explanation:

7 0
2 years ago
Other questions:
  • a macine that increases speed, a machine that changes the direction of force and a machine that increases force
    10·1 answer
  • Your friend Nader is standing 400,000 meters away. If you send a message to him using radio waves, how long will it take for him
    11·1 answer
  • Two high-current transmission lines carry currents of 29.0 A and 78.0 A in the same direction and are suspended parallel to each
    12·2 answers
  • How to tell if a circuit is connected in.a series.or parallel?
    6·1 answer
  • What process occurs when all of the energy from light waves is transferred to a medium?
    9·2 answers
  • A Plane crashes into the side of a mountain. If the crash took place over 9
    7·1 answer
  • Positive buoyancy used in a sentence
    13·1 answer
  • 1. Two charged objects have a repulsive force of 2 N. If the charge of one of the objects is doubled, then the new force will be
    11·1 answer
  • Students had two batteries and two different resistors. During four trials, they build four different circuits and measure the c
    11·1 answer
  • A concave mirror has a radius of curvature of 1.6m. Find the focal length
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!